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Jensen TM, Pedersen JK, Waldorff FB, Søndergaard J, Overgaard S, Christensen K. Trends in Incidence of Hip Fracture and Hip Replacement in Denmark, 1996 to 2018. JAMA Netw Open 2024; 7:e249186. [PMID: 38691358 PMCID: PMC11063804 DOI: 10.1001/jamanetworkopen.2024.9186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 03/01/2024] [Indexed: 05/03/2024] Open
Abstract
Importance The past several decades have witnessed substantial changes in treatments that are particularly relevant for older patients. Objectives To assess changes in national-level incidence rates of fracture- and musculoskeletal-related (ie, arthritis-related) hip replacement procedures for individuals aged 40 to 104 years over a 23-year period in Denmark. Design, Setting, and Participants This cohort study used national Danish health registers to include the Danish population aged 40 to 104 years from January 1, 1996, to December 31, 2018. Data were analyzed from May 31, 2022, to February 14, 2024. Main Outcomes and Measures Age- and period-specific incidence rates of hip fracture and hip replacement stratified on fracture-related vs arthritis-related indication. Results From 1996 to 2018, a total of 3 664 979 individuals were followed up for a mean (SD) of 14.6 (7.7) years, resulting in a follow-up time of 53 517 861 person-years and 158 982 (first) hip fractures, of which 42 825 involved fracture-related hip replacement procedures. A further 104 422 individuals underwent arthritis-related hip replacement. During the first 2 decades of the 21st century, hip fracture rates declined by 35% to 40% for individuals aged 70 to 104 years, and the proportion of the population undergoing fracture-related hip replacement increased by 50% to 70%, with modest variation across those aged 75 to 99 years. Rates of arthritis-related hip replacements peaked for individuals aged 75 to 79 years, but with the largest relative rate increase (75%-100%) occurring for those aged 80 to 94 years, primarily from 2001 to 2015, whereafter it remained nearly unchanged. The decline in rates of arthritis-related hip replacement after 75 to 79 years of age was gradual and did not suggest an upper age limit for access to arthritis-related hip replacement. Conclusions and Relevance The findings of this cohort study suggest that during the past several decades in Denmark, the incidence of hip fractures declined by 35% to 40% among patients aged 80 to 104 years, while the proportion receiving fracture-related hip replacement remained relatively constant after 75 years of age. During the first decades of the 21st century, arthritis-related hip replacement incidence increased by 50% to 100% among older patients and stabilized hereafter, with no apparent cutoff age for this type of procedure. These patterns indicate a positive overall trend with declining hip fracture incidence over the last decades in Denmark, and the observed hip replacement incidence suggests that age is currently not a major determining factor guiding this type of surgery.
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Affiliation(s)
- Troels Mygind Jensen
- Research Unit for General Practice, Department of Public Health, University of Southern Denmark, Odense
- Danish Aging Research Center, Department of Public Health, University of Southern Denmark, Odense
- Research Unit for Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense
| | - Jacob Krabbe Pedersen
- Danish Aging Research Center, Department of Public Health, University of Southern Denmark, Odense
- Research Unit for Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense
| | - Frans Boch Waldorff
- Research Unit for General Practice, Department of Public Health, University of Southern Denmark, Odense
- Danish Aging Research Center, Department of Public Health, University of Southern Denmark, Odense
- Research Unit for General Practice and Section of General Practice, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Jens Søndergaard
- Research Unit for General Practice, Department of Public Health, University of Southern Denmark, Odense
- Danish Aging Research Center, Department of Public Health, University of Southern Denmark, Odense
| | - Søren Overgaard
- Department of Orthopaedic Surgery and Traumatology, Copenhagen University Hospital, Bispebjerg, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Kaare Christensen
- Danish Aging Research Center, Department of Public Health, University of Southern Denmark, Odense
- Research Unit for Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense
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Galvin A, Pedersen JK, Wojczynski MK, Ukraintseva S, Arbeev K, Feitosa M, Province MA, Christensen K. The Protective Effect of Familial Longevity Persists After Age 100: Findings From the Danish National Registers. J Gerontol A Biol Sci Med Sci 2024; 79:glad164. [PMID: 37449765 PMCID: PMC10733167 DOI: 10.1093/gerona/glad164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Indexed: 07/18/2023] Open
Abstract
BACKGROUND A recent study suggested that the protective effect of familial longevity becomes negligible for centenarians. However, the authors assessed the dependence on familial longevity in centenarians by comparing centenarians with 1 parent surviving to age 80+ to centenarians whose same-sexed parent did not survive to age 80. Here we test whether the protective effect of familial longevity persists after age 100 using more restrictive definitions of long-lived families. METHODS Long-lived sibships were identified through 3 nationwide, consecutive studies in Denmark, including families with either at least 2 siblings aged 90+ or a Family Longevity Selection Score (FLoSS) above 7. Long-lived siblings enrolled in these studies and who reached age 100 were included. For each sibling, 5 controls matched on sex and year of birth were randomly selected among centenarians in the Danish population. Survival time from age 100 was described with Kaplan-Meier curves for siblings and controls separately. Survival analyses were performed using stratified Cox proportional hazards models. RESULTS A total of 340 individuals from long-lived sibships who survived to age 100 and 1 700 controls were included. Among the long-lived siblings and controls, 1 650 (81%) were women. The results showed that long-lived siblings presented better overall survival after age 100 than sporadic long-livers (hazard ratio [HR] = 0.80, 95% confidence interval [CI] = 0.71-0.91), with even lower estimate (HR = 0.65, 95% CI = 0.50-0.85) if familial longevity was defined by FLoSS. CONCLUSIONS The present study, with virtually no loss to follow-up, demonstrated a persistence of protective effect of familial longevity after age 100.
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Affiliation(s)
- Angéline Galvin
- Epidemiology, Biostatistics, and Biodemography Team, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Jacob Krabbe Pedersen
- Epidemiology, Biostatistics, and Biodemography Team, Department of Public Health, University of Southern Denmark, Odense, Denmark
- The Danish Aging Research Center, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Mary K Wojczynski
- Division of Statistical Genomics, Department of Genetics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Svetlana Ukraintseva
- Biodemography of Aging Research Unit, Social Science Research Institute, Duke University, Durham, North Carolina, USA
| | - Konstantin Arbeev
- Biodemography of Aging Research Unit, Social Science Research Institute, Duke University, Durham, North Carolina, USA
| | - Mary Feitosa
- Division of Statistical Genomics, Department of Genetics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Michael A Province
- Division of Statistical Genomics, Department of Genetics, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Kaare Christensen
- Epidemiology, Biostatistics, and Biodemography Team, Department of Public Health, University of Southern Denmark, Odense, Denmark
- The Danish Aging Research Center, Department of Public Health, University of Southern Denmark, Odense, Denmark
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Eskesen TO, Sillesen M, Pedersen JK, Pedersen DA, Christensen K, Rasmussen LS, Steinmetz J. Association of Trauma With Long-Term Risk of Death and Immune-Mediated or Cancer Disease in Same-Sex Twins. JAMA Surg 2023:2805046. [PMID: 37195677 DOI: 10.1001/jamasurg.2023.1560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Importance Immediate consequences of trauma include a rapid and immense activation of the immune system, whereas long-term outcomes include premature death, physical disability, and reduced workability. Objective To investigate if moderate to severe trauma is associated with long-term increased risk of death or immune-mediated or cancer disease. Design, Setting, and Participants This registry-based, matched, co-twin control cohort study linked the Danish Twin Registry and the Danish National Patient Registry to identify twin pairs in which 1 twin had been exposed to severe trauma and the other twin had not from 1994 to 2018. The co-twin control design allowed for matching on genetic and environmental factors shared within twin pairs. Exposure Twin pairs were included if 1 twin had been exposed to moderate to severe trauma and the other twin had not (ie, co-twin). Only twin pairs where both twins were alive 6 months after the trauma event were included. Main Outcome and Measure Twin pairs were followed up from 6 months after trauma until 1 twin experienced the primary composite outcome of death or 1 of 24 predefined immune-mediated or cancer diseases or end of follow-up. Cox proportional hazards regression was used for intrapair analyses of the association between trauma and the primary outcome. Results A total of 3776 twin pairs were included, and 2290 (61%) were disease free prior to outcome analysis and were eligible for the analysis of the primary outcome. The median (IQR) age was 36.4 (25.7-50.2) years. The median (IQR) follow-up time was 8.6 (3.8-14.5) years. Overall, 1268 twin pairs (55%) reached the primary outcome; the twin exposed to trauma was first to experience the outcome in 724 pairs (32%), whereas the co-twin was first in 544 pairs (24%). The hazard ratio for reaching the composite outcome was 1.33 (95% CI, 1.19-1.49) for twins exposed to trauma. Analyses of death or immune-mediated or cancer disease as separate outcomes provided hazard ratios of 1.91 (95% CI, 1.68-2.18) and 1.28 (95% CI, 1.14-1.44), respectively. Conclusion and Relevance In this study, twins exposed to moderate to severe trauma had significantly increased risk of death or immune-mediated or cancer disease several years after trauma compared with their co-twins.
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Affiliation(s)
- Trine O Eskesen
- Department of Anesthesia and Trauma Centre, Section 6011, Center of Head and Orthopedics, Rigshospitalet, Copenhagen, Denmark
| | - Martin Sillesen
- Department of Organ Surgery and Transplantation, Rigshospitalet, Copenhagen, Denmark
- Center for Surgical Translational and Artificial Intelligence Research, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Jacob Krabbe Pedersen
- The Danish Twin Registry, Department of Public Health, University of Southern Denmark, Odense, Denmark
- Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Dorthe Almind Pedersen
- The Danish Twin Registry, Department of Public Health, University of Southern Denmark, Odense, Denmark
- Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Kaare Christensen
- The Danish Twin Registry, Department of Public Health, University of Southern Denmark, Odense, Denmark
- Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
- Department of Clinical Genetics, Odense University Hospital, Odense, Denmark
- Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Lars S Rasmussen
- Department of Anesthesia and Trauma Centre, Section 6011, Center of Head and Orthopedics, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Jacob Steinmetz
- Department of Anesthesia and Trauma Centre, Section 6011, Center of Head and Orthopedics, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Danish Air Ambulance, Aarhus, Denmark
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Pedersen JK, Andersen K, Svendsen AJ, Hørslev-Petersen K. No difference in antidepressant prescription in rheumatoid arthritis and controls. Results from a population-based, matched inception cohort. Scand J Rheumatol 2021; 51:173-179. [PMID: 34182890 DOI: 10.1080/03009742.2021.1923148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Objective: Depression occurs at least two times more often in rheumatoid arthritis (RA) patients than in controls, but little is known about the treatment of depression in RA. The primary objective of this study was to compare the 1 year period prevalence of antidepressant prescription in patients with RA versus controls.Method: We included a retrospective inception cohort of 509 patients with incident RA and 2545 frequency-matched population controls ascertained from 1995 to 2002. The cohort was followed until 31 December 2017 and linked with nationwide Danish registers. From the Danish National Prescription Register, we obtained information on redeemed prescriptions of antidepressants (Anatomical Therapeutic Chemical code N06A).Results: We did not demonstrate significant differences in the 1 year period prevalence ratios and the incidence rate ratios for either antidepressant prescription or the frequency of hospital admissions with depressive episode. The most frequent indication for antidepressant prescription in patients with RA was depression. Cox regression analyses showed no association between RA and antidepressant prescription.Conclusion: We found no significant differences in the occurrence of antidepressant prescription in patients with RA versus matched controls. The main indication for antidepressant prescription in RA was depression.
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Affiliation(s)
- J K Pedersen
- Research Unit, Danish Hospital for Rheumatic Diseases, Sønderborg, Denmark.,Rheumatology Section, Department of Medicine M, Svendborg Hospital, Odense University Hospital, Svendborg, Denmark.,Department of Regional Health Research, University of Southern Denmark, Odense, Denmark
| | - K Andersen
- Mental Health Services Region of Southern Denmark, Odense, Denmark
| | - A J Svendsen
- Rheumatology Section, Department of Medicine M, Svendborg Hospital, Odense University Hospital, Svendborg, Denmark.,Epidemiology, Biostatistics, Biodemography, University of Southern Denmark, Odense, Denmark
| | - K Hørslev-Petersen
- Research Unit, Danish Hospital for Rheumatic Diseases, Sønderborg, Denmark
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Pedersen JK, Jensen TM, Waldorff FB, Søndergaard J, Christensen K. Use of prescription medication in the last years of life: a population-based comparison of two oldest old Danish birth cohorts born 10 years apart. Age Ageing 2020; 49:1105-1109. [PMID: 32315400 DOI: 10.1093/ageing/afaa064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 02/20/2020] [Indexed: 11/14/2022] Open
Abstract
INTRODUCTION Age limits for diagnostics and treatments have been largely removed and replaced by an active diagnostic and treatment practice among the oldest old and has led to concerns about potential overtreatment during the last years of life. METHODS Use of prescription medication in the last years of life was assessed from 1995 to 2012 for the entire 1905 and 1915 Danish birth cohorts using nationwide register data. Medication use was quantified as the number different pharmacy-redeemed drugs during 120 days up to a given date. RESULTS For both cohorts, prescription medication use increased with proximity to death and calendar year, while age at death had little impact; use in the 1915 cohort was markedly higher than in the 1905 cohort. Average number of prescription medications varied from below 3 to above 9 depending on age, calendar year and proximity to death. From 1995 to 2005, average number of prescription medications for a 90-year-old person in the last month of life increased from 6.0 to 8.7. Out of 90-year-old persons dying in 2005, 82% were exposed to polypharmacy, up from 63% in 1995. CONCLUSIONS Prescription medication use accelerates throughout the last of years life among two Danish oldest old cohorts born 10 years apart, with substantially larger use in the most recent cohort. This pattern suggests an increase in drug prescribing regimens in the period 1995-2012, reinforcing the need for evidence-based guidelines on medications in the particularly vulnerable population of the oldest old patients in their last years of life.
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Affiliation(s)
- Jacob Krabbe Pedersen
- Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
- Danish Aging Research Center, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Troels Mygind Jensen
- Danish Aging Research Center, Department of Public Health, University of Southern Denmark, Odense, Denmark
- Research Unit for General Practice, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Frans Boch Waldorff
- Danish Aging Research Center, Department of Public Health, University of Southern Denmark, Odense, Denmark
- Research Unit for General Practice, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Jens Søndergaard
- Danish Aging Research Center, Department of Public Health, University of Southern Denmark, Odense, Denmark
- Research Unit for General Practice, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Kaare Christensen
- Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
- Danish Aging Research Center, Department of Public Health, University of Southern Denmark, Odense, Denmark
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Oksuzyan A, Höhn A, Krabbe Pedersen J, Rau R, Lindahl-Jacobsen R, Christensen K. Preparing for the future: The changing demographic composition of hospital patients in Denmark between 2013 and 2050. PLoS One 2020; 15:e0238912. [PMID: 32997671 PMCID: PMC7526879 DOI: 10.1371/journal.pone.0238912] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 08/26/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Population aging will pose huge challenges for healthcare systems and will require a promotion of positive attitudes towards older people and the encouragement of careers in geriatrics to attract young professionals into the field and to meet the needs of a rapidly growing number of old-aged patients. We describe the current demographic profile of hospital care use in Denmark and make projections for changes in the patient profile up to 2050. METHODS The Danish population in 2013 (N = 5.63 million) was followed up for inpatient and emergency admissions recorded in Danish hospitals in 2013 using population-based registers. We combined age- and sex-specific hospital care use in 2013 with official population estimates to forecast the profile of hospital days up to 2050 with respect to age and sex. RESULTS The total number of hospital days per year is projected to increase by 42% between 2013 and 2050, from 4.66 to 6.72 million days. While small changes are projected for the population aged 0-69, the largest change is projected to occur for the population aged 70+. The 2013 levels were 0.82 and 0.93 million days for men and women aged 70+, respectively. By 2050, these levels are projected to have reached 1.94 and 1.84 million days. While the population aged 70+ accounted for 37.5% of all days in 2013, its contribution is projected to increase to 56.2% by 2050. CONCLUSION Our study shows one possible scenario for changes in the hospital days due to population aging by 2050: Assuming no changes in hospital care use over the forecast period, the absolute contribution of individuals aged 70+ to the total hospital days will more than double, and the relative contribution of persons aged 70+ will account for nearly 60% of all hospital days by 2050, being largest among men.
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Affiliation(s)
- Anna Oksuzyan
- Max Planck Institute for Demographic Research, Rostock, Germany
| | - Andreas Höhn
- Max Planck Institute for Demographic Research, Rostock, Germany
- Department of Epidemiology, Biostatistics, and Biodemography, University of Southern Denmark, Odense, Denmark
- Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, United Kingdom
| | - Jacob Krabbe Pedersen
- Department of Epidemiology, Biostatistics, and Biodemography, University of Southern Denmark, Odense, Denmark
- Danish Aging Research Center, University of Southern Denmark, Odense, Denmark
| | - Roland Rau
- Max Planck Institute for Demographic Research, Rostock, Germany
- Department of Demography, University of Rostock, Rostock, Germany
| | - Rune Lindahl-Jacobsen
- Department of Epidemiology, Biostatistics, and Biodemography, University of Southern Denmark, Odense, Denmark
| | - Kaare Christensen
- Department of Epidemiology, Biostatistics, and Biodemography, University of Southern Denmark, Odense, Denmark
- Danish Aging Research Center, University of Southern Denmark, Odense, Denmark
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Ahrenfeldt LJ, Pedersen JK, Thinggaard M, Christensen K, Lindahl-Jacobsen R. Sex differences in health and mortality by income and income changes. J Epidemiol Community Health 2019; 74:225-231. [PMID: 31844031 DOI: 10.1136/jech-2019-213096] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 10/27/2019] [Accepted: 11/28/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND The adverse association between income, health and survival is well documented, but little is known about how income trajectories influence health and survival for men and women. We aim to investigate sex differences in mortality and hospitalisations by income and income changes. METHODS We performed a population-based, nationwide study including 1 063 787 Danes born 1935-1955 and residing in Denmark during 1980-2015. Income was calculated during two age intervals: 45-49 and 55-59 years. The average income was divided into quartiles for men and women separately, which formed the basis for the income trajectories. Individuals were followed up from age 60 until 2014/2015 for hospital admission and mortality, respectively. RESULTS Men had higher mortality and were more hospitalised than women. Sex differences in mortality were most pronounced for people with stable low income (relative difference in hazard=1.93; 95% CI 1.89 to 1.98) and a downward income trajectory (1.91; 95% CI 1.85 to 1.98) with smaller sex differences for people with an upward trajectory (1.59; 95% CI 1.56 to 1.62) and stable high income (1.37; 95% CI 1.33 to 1.41). A similar pattern was found for family income. Regarding hospitalisations, similar results were found, though less pronounced. Investigation of mortality and hospitalisations by all possible trajectories demonstrated that income at ages 55-59 was an important predictor of mortality, with increasing mortality for decreasing income quartile. CONCLUSION Income trajectories as a proxy for change in social position have a larger influence on men's than women's health and mortality. Income in the late 50s is an important predictor of mortality, particularly for men.
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Affiliation(s)
- Linda Juel Ahrenfeldt
- Unit of Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Jacob Krabbe Pedersen
- Unit of Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Mikael Thinggaard
- Unit of Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Kaare Christensen
- Unit of Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark.,Department of Clinical Genetics, Odense University Hospital, Odense, Denmark.,Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - Rune Lindahl-Jacobsen
- Unit of Epidemiology, Biostatistics and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
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Galvin A, Pedersen JK, Ukraintseva S, Perls TT, Wojczynski MK, Christensen K. CANCER: ARE OFFSPRING OF LONG-LIVED SIBLINGS BOTH ROBUST AND RESILIENT? Innov Aging 2019. [PMCID: PMC6845303 DOI: 10.1093/geroni/igz038.3314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background: The mechanisms underlying clustering of longevity in families are unclear. We have previously shown a low cancer incidence in offspring of long-lived siblings, i.e. cancer robustness. Here we test whether such offspring are also more resilient in terms of survival after cancer diagnosis. Methods: Identification of offspring from long-lived families was undertaken in three nationwide, consecutive Danish studies (DOS, GeHA, LLFS). Cancer cases were identified through linkage with the Danish Cancer Registry. Each offspring cancer case was matched with two control cancer cases from the 5% random sample of the Danish population. Matching criteria were birth year, sex, year of diagnosis and cancer site. The main outcome was overall survival. Factors studied were sociodemographic, health-related and cancer-related. Survival analyses were performed using stratified Cox proportional hazards models based on the matching data. Results: Among the 5,377 offspring of the 634 families, 465 offspring of long-lived siblings with first primary cancer were included, along with 930 controls. Offspring of long-lived siblings had a significantly better survival than controls (HR=0.64 95%CI=[0.52-0.78]). The association attenuated only slightly after adjustment of marital status, education, Charlson Comorbidity Index, and number of prescribed drugs (HR=0.66 95%CI=[0.54-0.81]). Conclusion: Our results suggest that in addition to being more robust to cancer risk, offspring of long-lived siblings are also more resilient to cancer after its diagnosis and show better overall survival compared to individuals with cancer from general Danish population. Funding: The LLFS study is funded by the US National Institute on Aging / National Institutes of Health.
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Affiliation(s)
- Angéline Galvin
- Epidemiology, Biostatistics, and Biodemography, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Jacob Krabbe Pedersen
- The Danish Aging Research Center, Department of Public Health, University of Southern Denmark, Odense, Denmark
| | - Svetlana Ukraintseva
- Center for Population Health and Aging, Duke University, Durham, North Carolina, United States
| | - Thomas T Perls
- Boston University School of Medicine, Boston, Massachusetts, United States
| | - Mary K Wojczynski
- Department of Genetics, Washington University in St. Louis, Saint Louis, Missouri, United States
| | - Kaare Christensen
- Danish Aging Research Center, University of Southern Denmark, Odense C, Denmark
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Christensen K, Wojczynski MK, Pedersen JK, Larsen LA, Province MA. MORBIDITY AND MORTALITY IN CHILDREN AND GRANDCHILDREN OF LONG-LIVED SIBLINGS. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- K Christensen
- University of Southern Denmark,Odense, Syddanmark,Denmark
| | - M K Wojczynski
- Department of Genetics, Washington University St. Louis, St. Louis, MO, USA
| | - J K Pedersen
- University of Southern Denmark, Institute of Public Health, Epidemiology Unit, Odense, Denmark
| | - L A Larsen
- University of Southern Denmark, Institute of Public Health, Epidemiology Unit, Odense, Denmark
| | - M A Province
- Washington University School of Medicine in St. Louis, Department of Genetics
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10
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Pedersen JK, Holst R, Primdahl J, Svendsen AJ, Hørslev-Petersen K. Mortality and its predictors in patients with rheumatoid arthritis: a Danish population-based inception cohort study. Scand J Rheumatol 2018; 47:371-377. [PMID: 29741136 DOI: 10.1080/03009742.2017.1420223] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
OBJECTIVES To investigate mortality and its predictors in a retrospectively defined population-based rheumatoid arthritis (RA) inception cohort Method: We included patients ascertained with incident RA from a region in the southern part of Denmark from 1995 to 2002. All patients fulfilled the 1987 American College of Rheumatology criteria for RA. The patients were followed from RA classification until death, emigration, or end of follow-up on 31 December 2013. We used personal record linkage with national public registers to obtain information on education, employment, cohabitation, comorbidity, and vital status. RESULTS The cohort comprised 509 patients, of whom 200 (39%) died during 6079 person-years. The most frequent underlying causes of death were cardiovascular disease (34%), neoplasms (26%), and respiratory disease (12%). In rheumatoid factor (RF)-positive males, the standardized mortality ratio (95% confidence interval) from all causes was 1.47 (1.15-1.88), from cardiovascular disease 1.63 (1.09-2.46), from respiratory disease 2.03 (1.06-3.90), and from neoplasms 2.26 (1.02-5.03) in the age group < 70 years, and 2.45 (1.23-4.90) in the age group > 79 years. On applying Cox models after multiple imputations by chained equations, we found that RF modified the effect of age. Employment status, comorbidity, and gender were independent baseline predictors of subsequent mortality. CONCLUSION In this cohort, significant excess mortality was confined to RF-positive males. The effect of age was modified by RF, and employment status and comorbidity were independent predictors of mortality.
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Affiliation(s)
- J K Pedersen
- a Research Unit, King Christian X Hospital for Rheumatic Diseases , Hospital of Southern Jutland , Graasten , Denmark.,b Department of Regional Health Research , University of Southern Denmark , Odense , Denmark.,c Department of Rheumatology , Odense University Hospital , Odense , Denmark
| | - R Holst
- b Department of Regional Health Research , University of Southern Denmark , Odense , Denmark.,d Oslo Centre of Biostatistics and Epidemiology , Oslo University Hospital and University of Oslo , Oslo , Norway
| | - J Primdahl
- a Research Unit, King Christian X Hospital for Rheumatic Diseases , Hospital of Southern Jutland , Graasten , Denmark.,b Department of Regional Health Research , University of Southern Denmark , Odense , Denmark
| | - A J Svendsen
- e Institute of Public Health, Epidemiology, Biostatistics, Biodemography , University of Southern Denmark , Odense , Denmark.,f Department of Rheumatology , Odense University Hospital , Svendborg , Denmark
| | - K Hørslev-Petersen
- a Research Unit, King Christian X Hospital for Rheumatic Diseases , Hospital of Southern Jutland , Graasten , Denmark.,b Department of Regional Health Research , University of Southern Denmark , Odense , Denmark
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Issa SF, Christensen AF, Lindegaard HM, Hetland ML, Hørslev-Petersen K, Stengaard-Pedersen K, Ejbjerg BJ, Lottenburger T, Ellingsen T, Pedersen JK, Junker K, Svendsen A, Tarp U, Østergaard M, Junker P. Galectin-3 is Persistently Increased in Early Rheumatoid Arthritis (RA) and Associates with Anti-CCP Seropositivity and MRI Bone Lesions, While Early Fibrosis Markers Correlate with Disease Activity. Scand J Immunol 2017; 86:471-478. [PMID: 28990250 DOI: 10.1111/sji.12619] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Accepted: 10/03/2017] [Indexed: 01/16/2023]
Abstract
Galectin-3 has been suggested as a pro-inflammatory mediator in animal arthritis and rheumatoid arthritis (RA). We aimed to study the serum level of galectin-3 in patients with newly diagnosed RA and associations with disease profile, Magnetic resonance imaging (MRI) findings and seromarkers of synovial matrix inflammation. One hundred and sixty DMARD naïve patients newly diagnosed with RA were included (CIMESTRA study). Clinical, serological and imaging data were recorded before treatment and at 6 weeks, 3 and 12 months. Galectin-3 and hyaluronan (HYA) were measured by ELISA (R&D and Corgenix, USA), and the N-terminal propeptide of type III collagen (PIIINP) by radioimmunoassay (Orion Diagnostica, Finland). One hundred and nineteen, 87 and 60 blood donors served as controls for galectin-3, HYA and PIIINP, respectively. Baseline galectin-3 was significantly elevated in anti-CCP positive (4.2 μg/l IQR [3.6;6.1]) patients as compared with anti-CCP negatives (4.0 μg/l [2.6;4.9], P = 0.05) and controls (3.8 μg/l [3.0;4.8], P < 0.01). During treatment, galectin-3 remained elevated, but increased transiently with peak values at 6 weeks. Galectin-3 correlated with baseline smoking, anti-CCP, and with MRI erosion score after 1 year of follow-up. HYA and PIIINP were elevated (P < 0.001) irrespective of anti-CCP status and correlated positively with synovitis assessed clinically and by MRI. HYA and PIIINP did not correlate with galectin-3. These observations indicate that HYA and PIIINP mainly reflect expansive synovitis proliferation while galectin-3 is more closely linked to autoimmunity, smoking and joint destructive processes.
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Affiliation(s)
- S F Issa
- Department of Rheumatology, Odense University Hospital, Odense, Denmark
| | | | - H M Lindegaard
- Department of Rheumatology, Odense University Hospital, Odense, Denmark
| | - M L Hetland
- Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - K Hørslev-Petersen
- Research Unit at King Christian X Hospital for Rheumatic Diseases, Graasten, Denmark
| | | | - B J Ejbjerg
- Department of Rheumatology, Slagelse Hospital, Slagelse, Denmark
| | - T Lottenburger
- Department of Rheumatology, Vejle Hospital, Vejle, Denmark
| | - T Ellingsen
- Department of Rheumatology, Odense University Hospital, Odense, Denmark
| | - J K Pedersen
- Department of Rheumatology, Odense University Hospital, Odense, Denmark
| | - K Junker
- The Institute of Molecular Medicine, Cancer and Inflammation, University of Southern Denmark, Odense, Denmark
| | - A Svendsen
- The Danish Twin Registry, Epidemiology, Institute of Public Health, Odense, Denmark
| | - U Tarp
- Department of Rheumatology, Aarhus University Hospital, Aarhus, Denmark
| | - M Østergaard
- Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - P Junker
- Department of Rheumatology, Odense University Hospital, Odense, Denmark
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Møller-Bisgaard S, Ejbjerg BJ, Eshed I, Hørslev-Petersen K, Hetland ML, Jurik AG, Thomsen H, Torfing T, Stengaard-Pedersen K, Junker P, Krogh NS, Lottenburger T, Ellingsen T, Andersen LS, Skjødt H, Svendsen AJ, Tarp U, Hansen IT, Pødenphant J, Pedersen JK, Lindegaard H, Hanson LG, Vestergaard A, Glinatsi D, Østergaard M. Effect of a treat-to-target strategy based on methotrexate and intra-articular betamethasone with or without additional cyclosporin on MRI-assessed synovitis, osteitis, tenosynovitis, bone erosion, and joint space narrowing in early rheumatoid arthritis: results from a 2-year randomized double-blind placebo-controlled trial (CIMESTRA). Scand J Rheumatol 2016; 46:335-345. [PMID: 27775461 DOI: 10.1080/03009742.2016.1209550] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVES To investigate whether a treat-to-target strategy based on methotrexate (MTX) and intra-articular (IA) betamethasone suppresses magnetic resonance imaging (MRI)-determined measures of disease activity and reduces joint destruction in early rheumatoid arthritis (eRA) patients, and to investigate whether concomitant cyclosporin A (CyA) provides an additional effect. METHOD In the 2-year randomized, double-blind, treat-to-target trial CIMESTRA, 160 patients with eRA (< 6 months) were randomized to MTX, intra-articular betamethasone and CyA, or placebo CyA. A total of 129 patients participated in the MRI substudy, and had contrast-enhanced MR images of the non-dominant hand at months 0, 6, 12, and 24. MR images were evaluated for osteitis, synovitis, tenosynovitis, bone erosion, and joint space narrowing (JSN), using validated scoring methods. RESULTS Significant reductions were seen at 6 months in all inflammatory parameters [synovitis, mean change -1.6 (p < 0.001, Wilcoxon), tenosynovitis, -3.5 (p < 0.001), and osteitis, -1.3 (p < 0.05)] and at 12/24 months in synovitis and tenosynovitis [-1.6/-2.2 and -3.6/-3.8, respectively; all p < 0.001]. MRI signs of inflammation were not fully eliminated, and increases in erosion and JSN scores were observed at 6 months [0.4 (p < 0.01)/0.1 (p < 0.05)], 12 months [0.8 (p < 0.001)/0.3 (p < 0.01)], and 24 months [1.0 (p < 0.001)/0.4 (p < 0.001)]. Clinical measures decreased significantly (p < 0.001) at all time points. There were no consistent statistically significant differences between treatment groups. CONCLUSIONS In this eRA treat-to-target trial, MTX and intra-articular glucocorticoids markedly reduced, but did not eliminate, MRI osteitis, synovitis, and tenosynovitis. Accordingly, minimal but statistically significant increases in bone erosion and JSN were observed. No additional effect of CyA was demonstrated.
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Affiliation(s)
- S Møller-Bisgaard
- a Copenhagen Centre for Arthritis Research, Centre for Rheumatology and Spine Diseases , Rigshospitalet , Glostrup , Denmark.,b Department of Rheumatology , Slagelse Hospital , Slagelse , Denmark
| | - B J Ejbjerg
- b Department of Rheumatology , Slagelse Hospital , Slagelse , Denmark
| | - I Eshed
- c Department of Radiology , Sheba Medical Centre , Tel Hashomer , Israel
| | - K Hørslev-Petersen
- d King Christian X's Hospital for Rheumatic Diseases , Graasten , Denmark
| | - M L Hetland
- a Copenhagen Centre for Arthritis Research, Centre for Rheumatology and Spine Diseases , Rigshospitalet , Glostrup , Denmark.,e The DANBIO Registry, Centre for Rheumatology and Spine Diseases , Rigshospitalet , Glostrup , Denmark
| | - A G Jurik
- f Department of Radiology , Aarhus University Hospital , Aarhus , Denmark
| | - H Thomsen
- g Department of Radiology , Herlev-Gentofte University Hospital , Herlev , Denmark
| | - T Torfing
- h Department of Radiology , Odense University Hospital , Odense , Denmark
| | | | - P Junker
- j Department of Rheumatology , Odense University Hospital , Odense , Denmark
| | - N S Krogh
- k Zitelab ApS , Copenhagen , Denmark
| | - T Lottenburger
- l Department of Rheumatology , Vejle Hospital , Vejle , Denmark
| | - T Ellingsen
- j Department of Rheumatology , Odense University Hospital , Odense , Denmark
| | - L S Andersen
- m Department of Rheumatology , Herlev-Gentofte University Hospital , Gentofte , Denmark
| | - H Skjødt
- a Copenhagen Centre for Arthritis Research, Centre for Rheumatology and Spine Diseases , Rigshospitalet , Glostrup , Denmark
| | - A J Svendsen
- n Department of Epidemiology , Institute of Public Health, University of Southern Denmark , Odense , Denmark
| | - U Tarp
- i Department of Rheumatology , Aarhus University Hospital , Aarhus , Denmark
| | - I T Hansen
- i Department of Rheumatology , Aarhus University Hospital , Aarhus , Denmark
| | - J Pødenphant
- m Department of Rheumatology , Herlev-Gentofte University Hospital , Gentofte , Denmark
| | - J K Pedersen
- j Department of Rheumatology , Odense University Hospital , Odense , Denmark
| | - H Lindegaard
- j Department of Rheumatology , Odense University Hospital , Odense , Denmark
| | - L G Hanson
- o Centre for Functional and Diagnostic Imaging and Research , Danish Research Centre for Magnetic Resonance (DRCMR), Copenhagen University Hospital Hvidovre , Hvidovre , Denmark.,p Biomedical Engineering, Elektro , Technical University of Denmark (DTU) , Lyngby , Denmark
| | - A Vestergaard
- q Department of Radiology , Copenhagen University Hospita Hvidovrel , Hvidovre , Denmark
| | - D Glinatsi
- a Copenhagen Centre for Arthritis Research, Centre for Rheumatology and Spine Diseases , Rigshospitalet , Glostrup , Denmark
| | - M Østergaard
- a Copenhagen Centre for Arthritis Research, Centre for Rheumatology and Spine Diseases , Rigshospitalet , Glostrup , Denmark
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Djurhuus BD, Hansen TG, Pedersen JK, Faber CE, Christensen K. School performance in cholesteatoma-operated children in Denmark: a nationwide population-based register-study. Acta Otolaryngol 2016; 136:663-8. [PMID: 26924562 DOI: 10.3109/00016489.2016.1146412] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Conclusion Cholesteatoma in childhood had no long-term effect on school performance for the majority who completed lower secondary school. Aim To investigate whether individuals operated on for cholesteatoma in childhood have impaired school performance in adolescence. Methods All children born in Denmark between 1986-1991 with cholesteatoma surgery performed before the age of 15 years were included (cholestetaoma group). A control group consisting of a 5% random sample of all children born in Denmark during the same period was used for comparison. Final marks (average, mathematics, Danish, and English) achieved upon completion of lower secondary school (9th grade; age 15 or 16 years) were compared between groups. Results A total of 549 individuals met the inclusion criteria for the cholesteatoma group and 15 106 for the control group. High parental education and female sex were strongly associated with high 9th grade marks. The cholesteatoma group did equally as well as the control group in all outcome-measures except from in English (1st foreign language), where children with ≥2 cholesteatoma surgeries scored 0.26 marks lower (95% confidence interval = 0.03-0.48). In the cholesteatoma group, though, the odds ratio for not attaining a 9th grade exam was 1.33 (95% confidence interval = 1.03-1.72%) when compared with the control group.
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Affiliation(s)
- B D Djurhuus
- a Department of ENT Head & Neck Surgery , Odense University Hospital , Odense , Denmark
| | - T G Hansen
- b Department of Anaesthesia and Intensive Care , Odense University Hospital , Odense , Denmark
| | - J K Pedersen
- c Epidemiology, Biostatistics and Biodemography , Institute of Public Health, University of Southern Denmark , Odense , Denmark
| | - C E Faber
- a Department of ENT Head & Neck Surgery , Odense University Hospital , Odense , Denmark
| | - K Christensen
- c Epidemiology, Biostatistics and Biodemography , Institute of Public Health, University of Southern Denmark , Odense , Denmark
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Krol A, Garred P, Heegaard NHH, Christensen AF, Hetland ML, Stengaard-Pedersen K, Junker P, Madsen HO, Lottenburger T, Ellingsen T, Andersen LS, Hansen I, Pedersen JK, Svendsen AJ, Tarp U, Pødenphant J, Lindegaard H, Østergaard M, Hørslev-Petersen K, Jacobsen S. Interactions between smoking, increased serum levels of anti-CCP antibodies, rheumatoid factors, and erosive joint disease in patients with early, untreated rheumatoid arthritis. Scand J Rheumatol 2014; 44:8-12. [PMID: 25205362 DOI: 10.3109/03009742.2014.918651] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES To determine to what extent shared epitopes, smoking, and anti-cyclic citrullinated peptide (anti-CCP) antibodies are associated with disease activity and erosive disease in patients with rheumatoid arthritis (RA) at disease onset. METHOD RA patients not previously treated with disease-modifying anti-rheumatic drugs (DMARDs) and with a disease duration of < 6 months (CIMESTRA study) were examined for shared epitopes, anti-CCP antibodies, immunoglobulin M rheumatoid factor (IgM-RF) and IgA-RF, radiographic erosive changes in hands and feet, and clinical disease activity. RESULTS The study comprised 153 patients, of whom 104 (68%) were ever-smokers. The prevalence of patients with 0, 1, or 2 shared epitopes was 40 (48%), 71 (49%), and 33 (23%), respectively. Anti-CCP antibodies, IgM-RF, and IgA-RF were present in 89 (58%), 99 (65%), and 82 (54%) patients, respectively. Among smokers, erosive disease was associated with anti-CCP antibodies [odds ratio (OR) 3.9, 95% confidence interval (CI) 1.6-9.3], IgM-RF (OR 4.9, 95% CI 1.9-12), and IgA-RF (OR 2.8, 95% CI 1.2-6.4) but absent with regard to shared epitopes. Among never-smokers, erosive disease was not associated with either shared epitopes or antibodies. All antibody levels measured were associated with smoking and shared epitopes. CONCLUSIONS Shared epitopes and smoking were associated with the production of anti-CCP antibodies and rheumatoid factors of IgM and IgA isotypes, which again were associated with erosive disease at presentation only in smokers. As shared epitopes and smoking were not directly associated with erosive disease, smoking may enhance the development of erosive disease in RA at different levels or through separate pathways.
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Affiliation(s)
- A Krol
- Department of Infectious Diseases and Rheumatology, Rigshospitalet , Copenhagen , Denmark
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Ellingsen T, Hansen I, Thorsen J, Møller BK, Tarp U, Lottenburger T, Andersen LS, Skjødt H, Pedersen JK, Lauridsen UB, Svendsen A, Lindegaard H, Jacobsen S, Østergaard M, Vestergaard A, Jurik AG, Junker P, Christensen AF, Hetland ML, Hørslev-Petersen K, Stengaard-Pedersen K. Upregulated baseline plasma CCL19 and CCR7 cell-surface expression on monocytes in early rheumatoid arthritis normalized during treatment and CCL19 correlated with radiographic progression. Scand J Rheumatol 2013; 43:91-100. [DOI: 10.3109/03009742.2013.803149] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Runge SB, Pedersen JK, Svendsen SW, Juhl M, Bonde JP, Nybo Andersen AM. Occupational lifting of heavy loads and preterm birth: a study within the Danish National Birth Cohort. Occup Environ Med 2013; 70:782-8. [PMID: 23839660 DOI: 10.1136/oemed-2012-101173] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVES To examine the association between occupational lifting during pregnancy and preterm birth. The risk of preterm birth was estimated for total burden lifted per day and number of medium and heavy loads lifted per day. METHODS In a study population of 62 803 pregnant women enrolled to the Danish National Birth Cohort from 1996 to 2002, the association between self-reported occupational lifting in the first part of pregnancy and preterm birth was analysed using logistic regression models with adjustment for age, parity, cervical cone biopsy, assisted reproduction and smoking. Associations between lifting and extremely (before 28 weeks), very (28-32 weeks) and moderately (33-37 weeks) preterm birth were analysed using Cox regression models. RESULTS We found a dose-response relation between total daily burden lifted and preterm birth with an OR of 1.50 (95% CI 1.03 to 2.19) with loads over 1000 kg/day. No threshold value was found. The associations were strongest for extremely and very preterm birth with HRs (95% CIs) of 4.3 (1.4 to 13.8) and 1.7 (0.7 to 4.0), respectively. Lifting heavy loads (>20 kg) more than10 times/day was associated with preterm birth up to an OR of 2.03 (95% CI 1.14 to 3.62). CONCLUSION In a society with social welfare and a highly regulated working environment, occupational lifting was associated with an increased risk of preterm birth.
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Affiliation(s)
- Stine Bjerrum Runge
- Section of Social Medicine, Department of Public Health, University of Copenhagen, Copenhagen K, Denmark
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Jensen TW, Hansen MS, Hørslev-Petersen K, Hyldstrup L, Abrahamsen B, Langdahl B, Zerahn B, Pødenphant J, Stengaard-Petersen K, Junker P, Østergaard M, Lottenburger T, Ellingsen T, Andersen LS, Hansen I, Skjødt H, Pedersen JK, Lauridsen UB, Svendsen AJ, Tarp U, Lindegaard H, Jurik AG, Vestergaard A, Hetland ML. Periarticular and generalised bone loss in patients with early rheumatoid arthritis: influence of alendronate and intra-articular glucocorticoid treatment. Post hoc analyses from the CIMESTRA trial. Ann Rheum Dis 2013; 73:1123-9. [DOI: 10.1136/annrheumdis-2012-203171] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Strate LL, Erichsen R, Baron JA, Mortensen J, Pedersen JK, Riis AH, Christensen K, Sørensen HT. Heritability and familial aggregation of diverticular disease: a population-based study of twins and siblings. Gastroenterology 2013; 144:736-742.e1; quiz e14. [PMID: 23313967 DOI: 10.1053/j.gastro.2012.12.030] [Citation(s) in RCA: 101] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Revised: 11/27/2012] [Accepted: 12/30/2012] [Indexed: 01/06/2023]
Abstract
BACKGROUND & AIMS Little is known about the role of heritable factors in diverticular disease. We evaluated the contribution of heritable factors to the development of diverticular disease diagnosed at a hospitalization or outpatient visit. METHODS Using nationwide patient registries, we identified 142,123 incident cases of diverticular disease diagnosed at a hospitalization (1977-2011) or an outpatient hospital visit (1995-2011) in Denmark, including cases in 10,420 index siblings and 923 twins. We calculated standardized incidence ratios for siblings versus the general population and concordance rates for monozygotic versus dizygotic twin pairs as measures of relative risk (RR). RESULTS The RR for diverticular disease in siblings of index cases was 2.92 (95% confidence interval [CI], 2.50-3.39) compared with the general population. The RRs were similar irrespective of the sex of the sibling or index case and were particularly strong in siblings of hospitalized cases and cases that underwent surgery. The proband-wise concordance rate for monozygotic twins was double that of dizygotic twins (0.16 [95% CI, 0.11-0.22] vs 0.07 [95% CI, 0.05-0.11], respectively). The RR of diverticular disease in one twin when the other had diverticular disease was 14.5 (95% CI, 8.9-23) for monozygotic twins compared with 5.5 (95% CI, 3.3-8.6) for dizygotic twins. Associations were stronger in female monozygotic twins compared with male twins (tetrachoric correlation, 0.60 [95% CI, 0.49-0.70] vs 0.33 [95% CI, 0.13-0.51]; P = .03 in an analysis stratified by sex and zygosity). We estimate that 53% (95% CI, 45%-61%) of susceptibility to diverticular disease results from genetic factors. CONCLUSIONS Based on a population-based study in Denmark, genetic factors appear to contribute to development of diverticular disease.
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Affiliation(s)
- Lisa L Strate
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington, USA.
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Andersen PS, Pedersen JK, Fode P, Skov RL, Fowler VG, Stegger M, Christensen K. Influence of host genetics and environment on nasal carriage of staphylococcus aureus in danish middle-aged and elderly twins. J Infect Dis 2012; 206:1178-84. [PMID: 22872733 PMCID: PMC3448969 DOI: 10.1093/infdis/jis491] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Background. Nasal carriage is a major risk factor for Staphylococcus aureus infection. Approximately, one-quarter of adults carry S. aureus. However, the role of host genetics on S. aureus nasal carriage is unknown. Methods. Nasal swabs were obtained from a national cohort of middle-aged and elderly Danish twins. Subjects colonized with S. aureus were identified by growth on selective plates and spa typing. A second sample was obtained from twins initially concordant for carriage. Twins found to again be colonized with S. aureus were defined as persistent carriers. Results. The prevalence of S. aureus carriage among 617 twin pairs (monozygotic/dizygotic pairs: 112/505) was 26.3% (95% confidence interval [CI], 24.0%–28.9%). The concordance rate for carriage did not differ significantly between pairs of monozygotic (37.5%; 95% CI, 22.3%–53.8%) twins and same sex (24.2%; 95% CI, 15.4%–34.5%), and opposite sex (21.4%; 95% CI, 12.0%–33.4%) dizygotic twins. Despite shared childhoods, only 1 of 617 pairs was concordant with respect to lineage. Although heritability increased for S. aureus and lineage persistency, no significant heritability was detected. Conclusion. In this study, host genetic factors exhibited only a modest influence on the S. aureus carrier state of middle-aged and elderly individuals.
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Affiliation(s)
- Paal Skytt Andersen
- Microbiology and Infection Control, Statens Serum Institut, Copenhagen S, Denmark.
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Grosen D, Bille C, Pedersen JK, Skytthe A, Murray JC, Christensen K. Recurrence risk for offspring of twins discordant for oral cleft: a population-based cohort study of the Danish 1936-2004 cleft twin cohort. Am J Med Genet A 2010; 152A:2468-74. [PMID: 20799319 DOI: 10.1002/ajmg.a.33608] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Our objective in this Danish population-based cohort study was to estimate the recurrence risk of isolated oral cleft (OC) for offspring of the unaffected co-twins of OC discordant twin pairs and to compare this risk to the recurrence risk in the offspring of the affected co-twin as well as to the risk in the background population. During 1936-2004, 207 twin pairs were ascertained, among whom at least one twin had an OC. The index persons were twins discordant for OC who had children (N=117), and their offspring (N=239). The participants were ascertained by linkage between The Danish Facial Cleft Database, The Danish Twin Registry and The Danish Civil Registration System. In the study OC recurrence risk for offspring of the affected and unaffected twin and relative risk were compared to the background prevalence. We found that among 110 children of the 54 OC affected twins, two (1.8%) children had OC corresponding to a significantly increased relative risk (RR=10; 95% CI 1.2-35) when compared to the frequency in the background population. Among the 129 children of the 63 unaffected twins, three (2.3%) children were affected, corresponding to a significantly increased relative risk (RR=13; 95% CI 2.6-36) when compared the background prevalence. We concluded that in OC discordant twin pairs similar increased recurrence risks were found among offspring of both OC affected and OC unaffected twins. This provides further evidence for a genetic component in cleft etiology and is useful information for genetic counseling of twin pairs discordant for clefting.
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Affiliation(s)
- Dorthe Grosen
- Department of Epidemiology, University of Southern Denmark, Odense, Denmark.
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Malling TH, Sigsgaard T, Andersen HR, Frischknecht L, Deguchi Y, Skadhauge L, Sherson D, Thomsen G, Baelum J, Pedersen JK, Omland Ø. Sex determines the influence of smoking and gene polymorphism on glutathione peroxidase activity in erythrocytes. Scand J Clin Lab Invest 2009; 69:295-302. [PMID: 19125369 DOI: 10.1080/00365510802632155] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE Glutathione peroxidase 1 (GPX1) is one of the major oxidative enzymes. Our aim was to characterize factors influencing its activity and to determine whether or not the activity is associated with asthma. MATERIAL AND METHODS Serum selenium concentration was measured, GPX1 polymorphisms were genotyped and smoking history was obtained in a Danish population-derived case-base cohort of 1,191 subjects designed to evaluate risk factors for asthma. GPX1 activity was measured in 134 male and 164 female subjects equally distributed according to genotype of GPX1. Among these subjects, 82 (28 %) had doctor-diagnosed asthma. RESULTS The average serum selenium concentration was too low for optimal enzyme activity (mean (SE), 83.4 (0.76) ng/mL). GPX1 activity in men was lower than in women, 52.6 (0.66) and 56.4 (0.59) U/g protein, respectively (p<0.001). In men, activity was positively associated with serum selenium concentration (p = 0.005) and negatively associated with both active smoking (p = 0.009) and exposure to environmental tobacco smoke (p = 0.02). In women, activity was associated with genotypes with 59.2 (1.4), 56.0 (1.4) and 54.2 (1.4) U/g protein in the homozygote wild-type, the heterozygote and the homozygote variant type, respectively (p = 0.001). Doctor-diagnosed asthma was unrelated to GPX1 activity in either sex. CONCLUSION Determinants for activity in the oxidative enzyme GPX1 show marked differences between the sexes, but the activity is not associated with asthma. Sex ought to be taken into consideration when analysing the activity of the enzyme.
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Hetland ML, Stengaard-Pedersen K, Junker P, Lottenburger T, Hansen I, Andersen LS, Tarp U, Svendsen A, Pedersen JK, Skjødt H, Lauridsen UB, Ellingsen T, Hansen GVO, Lindegaard H, Vestergaard A, Jurik AG, Østergaard M, Hørslev-Petersen K. Aggressive combination therapy with intra-articular glucocorticoid injections and conventional disease-modifying anti-rheumatic drugs in early rheumatoid arthritis: second-year clinical and radiographic results from the CIMESTRA study. Ann Rheum Dis 2007; 67:815-22. [PMID: 17878209 DOI: 10.1136/ard.2007.076307] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To investigate whether clinical and radiographic disease control can be achieved and maintained in patients with early, active rheumatoid arthritis (RA) during the second year of aggressive treatment with conventional disease-modifying antirheumatic drugs (DMARDs) and intra-articular corticosteroid. This paper presents the results of the second year of the randomised, controlled double-blind CIMESTRA (Ciclosporine, Methotrexate, Steroid in RA) study. METHODS 160 patients with early RA (duration <6 months) were randomised to receive intra-articular betamethasone in any swollen joint in combination with step-up treatment with either methotrexate and placebo-ciclosporine (monotherapy) or methotrexate plus ciclosporine (combination therapy) during the first 76 weeks. At week 68 hydroxychlorochine 200 mg daily was added. From week 76-104 ciclosporine/placebo-ciclosporine was tapered to zero. RESULTS American College of Rheumatology 20% improvement (ACR20), ACR50 and ACR70 levels were achieved in 88%, 79% and 59% of patients in the combination vs 72%, 62% and 54% in the monotherapy group (p = 0.03, 0.02 and 0.6 between groups). The patients globally declined from 50 to 12 vs 52 to 9, with 51% and 50% in Disease Activity Score (DAS) remission, respectively. Mean (SD) progressions in total Sharp-van der Heijde scores were 1.42 (3.52) and 2.03 (5.86) in combination and monotherapy groups, respectively (not significant). Serum creatinine levels increased by 7% in the combination group (4% in monotherapy), but hypertension was not more prevalent. CONCLUSION Continuous methotrexate and intra-articular corticosteroid treatment resulted in excellent clinical response and disease control at 2 years, and the radiographic erosive progression was minimal. Addition of ciclosporine during the first 76 weeks resulted in significantly better ACR20 and ACR50 responses, but did not have any additional effect on remission rate and radiographic outcome.
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Affiliation(s)
- M L Hetland
- Department of Rheumatology, Copenhagen University Hospital, Hvidovre, Denmark
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23
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Pedersen JK, Damsbo N, Kragstrup J. [A screening test for depression in general practice. The COOP/WONCA chart]. Ugeskr Laeger 1999; 161:787-90. [PMID: 10028883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Depressed patients in general practice may be difficult to identify. Questionnaires may be used for screening but some of the existing instruments are difficult to use and have only to a limited degree been introduced in general practice. In this study 798 patients' answers to the COOP/WONCA chart "Feelings" were compared to GPs' diagnosis according to ICD-10 criteria for depressive single episode (F32). At cut-off2/3 (slight/moderate problems) the chart had a sensitivity of 89% (76-100%) and specificity of 75% (72-78%). The predictive value of a positive test was not higher than 33% for any cut-off point and the predictive value of a negative test never less than 98%. A two-phased diagnostic strategy with the COOP/WONCA chart as step one is suggested as a possible and relatively simple way to optimize recognition of depressive patients in general practice.
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Affiliation(s)
- J K Pedersen
- Odense Universitet, Forskningsenheden og Fagomradet for Almen Medicin
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Abstract
PURPOSE To evaluate intraobserver and interobserver reproducibility of measurements in images obtained by the 50 MHz Humphrey Ultrasound Biomicroscope. METHODS The first stored image of central cornea, central anterior chamber, and angle structures obtained at 50 examinations were measured twice by three observers. Nine different parameters were measured in angle images and two in images of central cornea and anterior chamber. Intraobserver reproducibility was assessed by calculating the coefficient of variation and interobserver reproducibility by a two-ways ANOVA. RESULTS Intraobserver reproducibility was high for all measurements of central cornea thickness and anterior chamber depth with a coefficient of variation (%) < or = 3.8%. In angle images the intraobserver reproducibility of measurements was often lower (coefficient of variation (%) 1.3-52.6%). The lower reproducibility was most noticeable in measurements involving the less defined structures. Interobserver reproducibility was poor. CONCLUSIONS Comparison of measurements are best done of well defined structures and by only one observer.
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Affiliation(s)
- S F Urbak
- Department of Ophthalmology, Aalborg Sygehus, Denmark
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Abstract
PURPOSE To determine if a broth culture technique is a practical means for bacteriological investigation of keratitis. MATERIAL AND METHODS Twenty-seven eyes of 27 patients with a clinical diagnosis of bacterial keratitis were included in a prospective and non-comparative study at a Danish referral hospital. A corneal scrape was inoculated directly into broth medium which was transferred to the diagnostic laboratory for incubation and subculture. RESULTS Culture was negative in 4 patients, and 19 of the remaining 23 patients had a pure growth of either Pseudomonas aeruginosa (n = 8), Staphylococcus aureus (n = 2), Streptococcus pneumoniae (n = 2), Haemophilus influenzae biotype III (n = 1), Moraxella species (n = 1), Corynebacterium species (n = 1), or coagulase-negative staphylococci (n = 4). In 4 patients there was a mixed gram-positive growth. There was no association between microbiological findings and previous topical antibiotic therapy. Contamination and lack of quantitative assessment of growth proved not to be a problem. CONCLUSIONS By broth culture technique we identified a definite pathogen (P. aeruginosa, S. aureus or S. pneumoniae) in 44% of patients (95% binomial confidence limits: 25-65%). The technique may replace the standard technique of direct plate culture under circumstances where it is difficult to keep a supply of fresh media or transport inoculated plates.
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Affiliation(s)
- H C Schønheyder
- Department of Clinical Microbiology, Aalborg Hospital, Denmark
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Pedersen JK, Urbak SF. [Monosymptomatic pupillary dilatation caused by scopolamine patch]. Ugeskr Laeger 1995; 157:4581. [PMID: 7645106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A case of monosymptomatic unilateral mydriasis caused by scopolamine patches is presented. The same symptom caused by pressure from an aneurysm on the oculomotor nerve is exceptionally rare.
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Bjerg PL, Ruegge K, Pedersen JK, Christensen TH. Distribution of redox-sensitive groundwater quality parameters downgradient of a landfill (Grindsted, Denmark). Environ Sci Technol 1995; 29:1387-1394. [PMID: 22192037 DOI: 10.1021/es00005a035] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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29
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Pedersen JK. [Prevention of allergies in infants--a comment on ethical and other considerations]. Ugeskr Laeger 1994; 156:3789-90. [PMID: 8059465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Breum L, Pedersen JK, Ahlstrøm F, Frimodt-Møller J. Comparison of an ephedrine/caffeine combination and dexfenfluramine in the treatment of obesity. A double-blind multi-centre trial in general practice. Int J Obes Relat Metab Disord 1994; 18:99-103. [PMID: 8148931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
In previous separate studies, dexfenfluramine (DF) and ephedrine/caffeine (EC) have been shown to promote weight loss in obese patients as compared with placebo. In order to compare the efficacy and safety of these two anorectic drugs, 103 patients with 20-80% overweight were included in a 15-week double-blind study in general practice. Patients were randomized to either 15 mg DF twice daily (n = 53), or 20 mg/200 mg ephedrine/caffeine three times a day (n = 50), supplementary to a 5 MJ/day diet. Forty-three patients from the DF group and 38 from the EC group completed the study. After 15 weeks of treatment, the DF group (n = 43) had lost 6.9 +/- 4.3 kg and the EC group (n = 38) had lost 8.3 +/- 5.2 kg (mean +/- s.d., P = 0.12). In the subgroup of patients with BMI > or = 30 kg/m2 (n = 59), the mean weight loss was 7.0 +/- 4.2 kg in the DF group (n = 29) and 9.0 +/- 5.3 kg in the EC group (n = 30), P < 0.05. Both systolic and diastolic blood pressures were reduced similarly during both treatments. Twenty-three patients in the DF group (43%) and 27 in the EC group (54%) complained of side-effects. Central nervous system side-effects, especially agitation, were more pronounced in the EC group (P < 0.05), whereas gastro-intestinal symptoms were more frequent in the DF group (P < 0.05). The side-effects declined markedly during the first month of treatment in both groups.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- L Breum
- Research Department of Human Nutrition, Royal Veterinary and Agricultural University, Hadsund, Denmark
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31
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Pedersen JK. [Significance of breast feeding in certain virus infections]. Ugeskr Laeger 1994; 156:66-7. [PMID: 8291163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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32
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Pedersen JK. [The gender--an important parameter]. Ugeskr Laeger 1993; 155:1887-8. [PMID: 8317053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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33
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Pedersen JK. [Dioxin emission from hospital waste incinerators]. Ugeskr Laeger 1991; 153:1430. [PMID: 2028555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Gram J, Jespersen J, Pedersen JK. [Diagnostic and clinical aspects in patients with acquired circulating coagulation inhibitors]. Ugeskr Laeger 1985; 147:1319-22. [PMID: 3923675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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35
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Pedersen JK. [Breast feeding. Preservation of human milk]. Sygeplejersken 1983; 83:16-9. [PMID: 6553402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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36
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Pedersen JK. The woman milk bank at Fuglebakken Children's Hospital. Dan Med Bull 1982; 29:300-5. [PMID: 7140385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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37
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Andersen JA, Rasmussen NR, Pedersen JK. Mesenteric panniculitis: a fatal case. Am J Gastroenterol 1982; 77:523-5. [PMID: 6178288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Abstract
Immittance procedures and medical evaluation based on case history and otoscopy were administered to 115 youngsters from a large pediatric practice. Using ASHA immittance guidelines, a reasonable 73% overall agreement was achieved between immittance and medical recommendations of "pass", "at risk", and "fail/treat". When using medical findings as the criterion, there were three definite cases of under-referral (false negatives) and five over-referrals (false positives) in this sample group.
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Jepsen JM, Pedersen JK, Andersen J. [Cancer of the prostate with metastasis to the penis]. Ugeskr Laeger 1981; 143:2236-7. [PMID: 7303232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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40
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Hydén H, Langvad E, Jordal R, Pedersen JK. [Interferon therapy of tumors with extracorporeal perfusion]. Lakartidningen 1980; 77:4380-2. [PMID: 6163049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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41
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Pedersen JK, Bennedsen J, Rhodes JM, Larsen SO. In vitro effect of mitogen-activated speen cells and their culture supernatants on mouse peritoneal macrophages as assayed by intracellular killing of Listeria monocytogenes and content of beta-galactosidase. J Reticuloendothel Soc 1979; 25:469-77. [PMID: 110928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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42
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Pedersen JK, Sawicki S. Metronidazole therapy for cutaneous leishmaniasis. Arch Dermatol 1975; 111:1343-4. [PMID: 1190802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A man acquired cutaneous leishmaniasis in Afghanistan. The disease involved two sites and remained active for seven months. Treatment with metronidazole was followed by resolution of the skin lesions in one month.
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Andreasen F, Boye E, Christoffersen E, Dalsgaard P, Henneberg E, Kallenbach A, Ladefoged S, Lillquist K, Mikkelsen E, Norder0 E, Olsen J, Pedersen JK, Pedersen V, Petersen GB, Schroll J, Schultz H, Seidelin J. Assessment of verapamil in the treatment of angina pectoris. Eur J Cardiol 1975; 2:443-52. [PMID: 805050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A brief review is given of the pharmacological data of verapamil, which chemically shows a certain similarity to papaverine. The effect of the drug (80 mg) 3 times daily, on angina pectoris, as compared with placebo, was evaluated in a double-blind cross-over therapeutic trial with 4-wk periods in 47 patients. The incidence of attacks and the nitroglycerine consumption decreased in the second fortnight of the verapamil period by approximately 25% compared with the placebo period. An ergometer test showed a prolongation of the exerice time of 20%. The mean blood pressure and the heart rate fell under verapamil treatment if the patients had values which were relatively high in the placebo period. The increase in heart rate during exercise from two different resting levels showed a tendency to become more pronounced under treatment with verapamil than under placebo. The length of the P-Q intervals were not affected by verapamil. The mechanism of action in angina pectoris is discussed, but it is concluded that it is still not possible to explain it. Twelve Danish medical departments took part in the trial.
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Pedersen JK. [Letter: Camomile tea and fever]. Ugeskr Laeger 1974; 136:2885-6. [PMID: 4446115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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45
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Pedersen JK. [Alpha-1-antitrypsin deficiency, fatty liver and ulcerative colitis. A hitherto unknown symptom complex with account of familial predisposition]. Ugeskr Laeger 1974; 136:2741-4. [PMID: 4548588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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46
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Kern F, Pedersen JK. Leishmaniasis in the United States. A report of ten cases in military personnel. JAMA 1973; 226:872-4. [PMID: 4800334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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