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Sentell T, Choi SY, Ching L, Uchima O, Keliikoa LB, Irvin L, Pirkle C. Potentially Preventable Hospitalizations for Chronic Conditions among Youth. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.606] [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: 11/13/2022] Open
Abstract
Abstract
Objective
Chronic, preventable conditions like diabetes and hypertension previously seen primarily in adults are increasing among young people. Chronic disease-related potentially preventable hospitalizations (PPH) are costly. The study goal was to quantify potentially preventable hospitalizations (PPH) for chronic disease in those aged 5-29 years in one diverse state of the USA.
Methods
With Hawai'i statewide inpatient 2015-2016 data across all payers, we used standard metrics to capture asthma, diabetes, and hypertension PPH. Denominators were obtained by age group, gender, race/ethnicity, and living in O'ahu vs. other Hawaiian Islands from American Community Survey data. A multivariable negative binomial regression model predicted having a PPH adjusting for age group, gender, race/ethnicity, and O'ahu residency.
Results
Six percent (775) of inpatient hospitalizations among young people, representing 455 unique individuals, were PPH for a chronic disease. The types of PPH inpatient hospitalizations include diabetes (436), asthma (261), heart disease (64) and hypertension (14). The number of PPH visits per individual ranged from 1-20 with a mean of 1.7 (SD: 2.28) visits. The total cost of these PPH during this 2-year time period was $16,762,262. Among unique individuals with a chronic disease PPH (N = 455), the mean age was 17.5 (SD: 8.2); 55% were male. In the multivariable model, those who were between 10-14 years (RR:0.47;0.32-0.69) and 15-19 years (RR:0.46;0.31-0.69) were significantly less likely to have a PPH compared to those aged 5-9 years. Other Pacific Islanders were significantly more likely to have a PPH (RR: 3.08; 2.05-4.63) compared to whites.
Conclusions
Many hospitalizations by those aged 5-29 years were PPH. Pacific Islander youth had PPH chronic disease disparities. Chronic disease prevention and management is critical. Solutions may include equitable chronic disease prevention policies and improving access to culturally relevant care.
Key messages
This study reveals important disparities in youth that may lead to future health risks as well as current poor outcomes.
Other Pacific Islanders were at significantly increased risk for PPH for chronic disease compared to other racial/ethnic groups from early childhood to young adulthood.
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Affiliation(s)
- T Sentell
- OPHS, University of Hawaii at Manoa, Honolulu, USA
| | - S Y Choi
- JABSOM, University of Hawaii, Honolulu, USA
| | - L Ching
- Hawaii Department of Health, Honolulu, USA
| | - O Uchima
- OPHS, University of Hawaii at Manoa, Honolulu, USA
| | - L B Keliikoa
- OPHS, University of Hawaii at Manoa, Honolulu, USA
| | - L Irvin
- Hawaii Department of Health, Honolulu, USA
| | - C Pirkle
- OPHS, University of Hawaii at Manoa, Honolulu, USA
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Pirkle C, Peltzer N, Câmara S, Gomes J, Ylli A. Burden of food insecurity in older adults from diverse global settings: policy recommendations. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.311] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Food insecurity prevalence is highest in low and middle-income countries, yet there is a dearth of research on the burden in older adults in these settings. Food insecurity has long-term consequences for the health of older persons. We examined cross-sectional food security data from 1,482 participants in the 2016 wave of the longitudinal International Mobility in Aging Study (IMIAS) conducted in Canada, Albania, Colombia, and Brazil. These are community samples between 68 and 79 years. Food security was assessed with the Latin American and Caribbean Household Food Security Scale and recoded to yes/no. Covariates of interest included sex, site, income, living arrangement, and education. Descriptive statistics, with tests of statistical significance, were used. Responses to scale items varied from 10% of participants reporting worry about running out of food and being unable to eat healthy foods to 2% reporting not eating for a whole day or having to beg for food. Food insecurity in the sample was 17%. Few Canadian respondents (<5%) were food insecure, compared to 30% in Tirana, 28% in Manizales, and 18% in Natal. Better educated and income sufficient respondents were significantly more food secure than lesser educated, lower income ones. Respondents living with spouses were significantly less likely to be food insecure than those living alone or in other arrangements (e.g. with children). The exception was Tirana; 25% of those in other arrangements were food insecure compared to 32% living with a spouse and 44% alone. Food insecurity did not differ significantly by age or sex. Site, income, living arrangement, and education were all associated with food insecurity status. Study findings contribute to a significant gap in literature about food security in older adults. Because food insecurity in older adults leads to negative health outcomes, results suggest specific interventions to improve health and reduce burden on healthcare systems is needed for elderly.
Key messages
Food insecurity has severe health consequences for elderly and location, income, education, and living arrangement contributes to health inequalities in this population across diverse settings. Little to no research has been done on food insecurity in elderly outside of North America and study findings contribute to significant gap in research in this population across global settings.
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Affiliation(s)
- C Pirkle
- Office of Public Health Studies, University of Hawaʻi at Mānoa, Honolulu, USA
| | - N Peltzer
- Office of Public Health Studies, University of Hawaʻi at Mānoa, Honolulu, USA
| | - S Câmara
- Health Sciences of Trairi, Federal University of Rio Grande do Norte, Santa Cruz, Brazil
| | - J Gomes
- Facultad de Ciencias para la Salud, Universidad de Caldas, Manizales, Colombia
| | - A Ylli
- Department of Public Health, Faculty of Medicine, Tirana, Albania
- Sector of Research on Non-Communicable Disease Policies, Institute of Public Health, Tirana, Albania
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Sentell T, Choi SY, Ching L, Quensell M, Keliikoa LB, Corriveau E, Pirkle C. Chronic conditions among children, adolescents, and young adults in acute care settings. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.872] [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: 11/12/2022] Open
Abstract
Abstract
Background
Despite a growing prevalence of chronic disease risk factors, such as obesity, among young people in the United States and other countries, little is known about actual disease prevalence in this population. Almost nothing is known about this topic in many racial/ethnic groups that are rapidly growing in the United States, including Native Hawaiians, Other Pacific Islanders, and Filipinos. Yet these understudied groups are at high risk. The study goal was to determine the statewide prevalence of chronic disease in acute care for those aged 5-29 years, including Native Hawaiians, Filipinos, and Pacific Islanders.
Methods
Using Hawai'i statewide inpatient and emergency department (ED) data across all payers from 2015-2016, we considered the presence of at least one of five target chronic conditions (asthma, hypertension, chronic kidney disease, diabetes, stroke) from 13,514 inpatient stays by 9,467 unique individuals and 228,548 ED visits by 127,854 individuals.
Results
Twenty-eight percent of youth who were hospitalized and 12% with an ED visit had at least one chronic condition. In both inpatient and ED settings, race/ethnicity, age group, and payer varied significantly when comparing those with a chronic condition to those without a chronic condition. Notably, those with a chronic condition were disproportionately Native Hawaiian, Filipino, and Pacific Islander; 32.3% percent of those with an inpatient chronic condition and 34.9% of those with an ED chronic condition were Native Hawaiian.
Conclusions
Chronic diseases, including those more often seen in adulthood, are prevalent in young people in acute care settings in the state of Hawai'i with notable disparities. This data can help justify, guide, and support programs urgently needed to address these changing epidemiological trends, which may be of particular interest for Medicaid.
Key messages
We show that chronic conditions are prevalent in young people in acute care settings in the state of Hawai‘i with notable disparities. This can help justify, guide, and support programs to address these troubling epidemiological trends.
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Affiliation(s)
- T Sentell
- OPHS, University of Hawaii at Manoa, Honolulu, USA
| | - S Y Choi
- John A. Burns School of Medicine, University of Hawaii, Honolulu, USA
| | - L Ching
- Hawaii Department of Health, Honolulu, USA
| | - M Quensell
- OPHS, University of Hawaii at Manoa, Honolulu, USA
| | - L B Keliikoa
- OPHS, University of Hawaii at Manoa, Honolulu, USA
| | - E Corriveau
- OPHS, University of Hawaii at Manoa, Honolulu, USA
| | - C Pirkle
- OPHS, University of Hawaii at Manoa, Honolulu, USA
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Pirkle C, Peltzer N, Câmara S, Gomes J, Ylli A. Older men from global settings more vulnerable to clinical changes associated with food insecurity. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa166.312] [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: 11/12/2022] Open
Abstract
Abstract
Background
Studies of the food security status of older adults are rare outside of the United States, especially in low- and middle-income settings. Food insecurity may contribute to disease and disability. Using a diverse sample of older adults, we examine the association of food insecurity with clinical and self-reported measures that are related to disease and impairment.
Methods
Cross sectional analysis of 1482 older adults from Kingston and St. Hyacinthe (Canada), Tirana (Albania), Manizales (Colombia), and Natal (Brazil). Outcome measures were Body Mass Index (BMI), waist circumference, and self-reported unintentional weight loss. Food insecurity was assessed with the 9-item Latin American and Caribbean Household Food Security Scale. Covariates were age, sex, study site, and education. Statistical analyses included Student's T-test, Chi-square test, and linear regression.
Results
83% of participants were food secure; 12% experienced mild food insecurity and 5%, moderate/severe food insecurity. Among men, BMI and waist circumference varied significantly by food security status (p < 0.05). Mean BMI among men with moderate/severe food insecurity was 25.5 compared to 27.0 for mild and 27.5 for no food insecurity. The pattern for waist circumference was similar (93.9cm for moderate/severe, 96.7cm for mild, and 98.9cm for no food insecurity). More food insecure men reported unintentional weight loss (13%) than food secure men (10%). This pattern was not observed among women. Statistical adjustment for study site, education, and age did not change the findings.
Conclusions
Significant differences in clinical indicators of disease were observed by food security status in men. At the extreme, low BMI and waist circumference are linked to increased risk of malnutrition, compromised immune function, and respiratory and digestive diseases. Differences in these measures by food security status emphasize the need for gender and age specific food security interventions.
Key messages
Food insecure men experience clinical indicators of disease significantly more than food insecure women. Successful food security interventions may require sex specific focus across global settings. Little research has been done on food insecurity in elderly outside of North America and study findings contribute to significant gap in sex specific research in this population across global settings.
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Affiliation(s)
- C Pirkle
- Office of Public Health Studies, University of Hawaʻi at Mānoa, Honolulu, USA
| | - N Peltzer
- Office of Public Health Studies, University of Hawaʻi at Mānoa, Honolulu, USA
| | - S Câmara
- Health Sciences of Trairi, Federal University of Rio Grande do Norte, Santa Cruz, Brazil
| | - J Gomes
- Facultad de Ciencias para la Salud, Universidad de Caldas, Manizales, Colombia
| | - A Ylli
- Department of Public Health, Faculty of Medicine, Tirana, Albania
- Sector of Research on Non-Communicable Disease Policies, Institute of Public Health, Tirana, Albania
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Pennington JT, Sentell TL, Vafaei A, Camara SM, Belanger E, Pirkle C. Resilience factors associated with physical function in vulnerable older adults from four countries. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.891] [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: 11/13/2022] Open
Abstract
Abstract
Background
Adverse childhood experiences (ACEs) include an array of maltreatment and they have been shown to confer higher risks of early mobility loss and ultimately disablement in older ages. This study aims to identify resilience factors associated with physical function in a diverse sample of older adults (65-74 years) from the 2012 International Mobility in Aging Study (IMIAS) who reported ACEs.
Methods
2002 participants were recruited from Kingston, Ontario; St. Hyacinthe, Quebec; Tirana, Albania; Manizales, Colombia; and Natal, Brazil. Economic ACEs were classified by self-report of at least one-poor childhood economic status, childhood hunger, parental unemployment-before the age of 15 years. The Short Physical Performance Battery was used to measure physical function; a score of < 8 was considered poor. Associations between hypothesized resilience factors (education, social support, expressed gender roles) and physical function were identified via bivariate analysis and logistic regression; after adjusting for sex, age, and sample site.
Results
Nearly half (46%) the participants reported economic ACES. High levels of education (OR 0.39; CI: 0.22-0.66) and social support from family (OR: 0.52; CI: 0.36-0.76), partners (OR: 0.47; CI: 0.29-0.74), and friends (OR: 0.59; CI: 0.38-0.92), as well as masculine (OR:0.49; CI: 0.29-0.83) and androgynous (0.48; CI: 0.30-0.77) gender roles, protected against poor physical function for those reporting childhood economic ACEs.
Conclusions
Despite encountering economic ACEs, those who achieved high relative levels of education, greater levels of support, as well as those characterized by masculine or androgynous gender roles, were more likely to maintain good physical performance in older ages compared to those with low education, no social support, and those classified as undifferentiated gender roles. Findings highlight critical points of intervention for those who experienced ACES.
Key messages
These findings imply that the associated negative physical health outcomes of ACEs can be delayed or eliminated via exposure to certain protective factors. Economic ACE exposure may be unavoidable, but there are resilience factors that could be promoted to foster the better health across the life course.
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Affiliation(s)
- J T Pennington
- Office of Public Health Studies, University of Hawaii at Manoa, Honolulu, USA
| | - T L Sentell
- Office of Public Health Studies, University of Hawaii at Manoa, Honolulu, USA
| | - A Vafaei
- Department of Health Sciences, Lakehead University, Thunder Bay, Canada
| | - S M Camara
- Health Sciences of Trairi, Federal University of Rio Grande do Norte, Santa Cruz, Brazil
| | - E Belanger
- Center for Gerontology and Healthcare Research, Brown University, Providence, USA
| | - C Pirkle
- Office of Public Health Studies, University of Hawaii at Manoa, Honolulu, USA
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Velez MP, Rosendaal N, Alvarado B, da Câmara S, Belanger E, Pirkle C. Age at natural menopause and physical function in older women from Albania, Brazil, Colombia and Canada: A life-course perspective. Maturitas 2018; 122:22-30. [PMID: 30797526 DOI: 10.1016/j.maturitas.2018.12.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [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: 09/14/2018] [Revised: 12/18/2018] [Accepted: 12/24/2018] [Indexed: 12/21/2022]
Abstract
OBJECTIVE Grip strength and gait speed are objective measures of physical function, which in turn is an indicator of biological aging. We evaluate the association between age at natural menopause (ANM) and physical functioning in a sample of postmenopausal women drawn from the International Mobility in Aging Study (IMIAS). STUDY DESIGN Retrospective cohort study of 775 women aged 65-74, from Albania, Brazil, Colombia and Canada, who had experienced natural menopause. MAIN OUTCOME MEASURES Gait speed and grip strength were obtained following standardized protocols. The association between self-reported ANM (<40, 40-44, 45-49, 50-54 and ≥55) and gait speed (m/s) and grip strength (kg) was assessed by linear regression analyses adjusting for several life-course economic and reproductive exposures, height, BMI and smoking. RESULTS Overall, women with ANM ≥ 55 had higher gait speed than those with ANM 50-54 (β = 0.05; 95%CI: 0.01, 0.10). Women with ANM < 40 had significantly lower grip strength compared with all other groups (β= -2.58; 95%CI: -4.43, -0.74). In region-specific analyses, ANM was associated with grip strength in Albania and Latin America and with gait speed in Albania only. No associations were observed in Canada. CONCLUSIONS ANM is associated with markers of physical functioning. Differences across study sites suggest that women in socially disadvantaged areas may reach menopause with different physiological reserves than those from more advantaged settings, leading to greater losses in muscle strength in postmenopausal years. More work comparing distinct populations is needed to better understand the underlying mechanisms.
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Affiliation(s)
- M P Velez
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Queen's University, Victory 4, 76 Stuart St., Kingston, ON, K7L 2V7, Canada; Department of Public Health Sciences, Queen's University, Carruthers Hall 2nd Floor, 62 Fifth Field Company Lane, Kingston, ON, K7L 3N6, Canada.
| | - N Rosendaal
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, Queen's University, Victory 4, 76 Stuart St., Kingston, ON, K7L 2V7, Canada.
| | - B Alvarado
- Department of Public Health Sciences, Queen's University, Carruthers Hall 2nd Floor, 62 Fifth Field Company Lane, Kingston, ON, K7L 3N6, Canada.
| | - S da Câmara
- Faculty of Health Sciences of Trairí, Universidade Federal do Rio Grande do Norte, Rua Teodorico Bezerra, 2-122, Santa Cruz, RN, 59200-000, Brazil.
| | - E Belanger
- Center for Gerontology and Healthcare Research, Department of Health Services, Policy and Practice, School of Public Health, Brown University, 121 South Main Street, Providence, RI, 02903, USA.
| | - C Pirkle
- Office of Public Health Studies, University of Hawai'i at Mānoa, 1960 E West Rd, Biomedical Bldg D104H, Honolulu, HI, 96822, USA.
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Davis C, Sentell T, Pirkle C, Fernandes de Souza Barbosa J, Curcio C, Ylli A. Meeting Physical Activity Guidelines by Walking in Older Adults from Three-Middle Income Countries. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky212.288] [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: 11/14/2022] Open
Affiliation(s)
- C Davis
- University of Hawaii at Manoa, Honolulu, USA
| | - T Sentell
- University of Hawaii at Manoa, Honolulu, USA
| | - C Pirkle
- University of Hawaii at Manoa, Honolulu, USA
| | | | - C Curcio
- Universidad Caldas, Manizales, Colombia
| | - A Ylli
- Institute of Public Health and Hygiene, Tirana, Albania
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Cmara S, Azevedo I, Pirkle C, Rosendaal N, Maciel A, Viana E. RESPIRATORY MUSCLE STRENGTH IS ASSOCIATED TO PARITY AMONG LOW-INCOME WOMEN FROM NORTHEAST BRAZIL. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1581] [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: 11/14/2022] Open
Affiliation(s)
- S. Cmara
- Universidade Federal do Rio Grande do Norte, Natal, Brazil,
| | - I.G. Azevedo
- Universidade Federal do Rio Grande do Norte, Natal, Brazil,
| | - C. Pirkle
- University of Hawaii, Honolulu, Hawaii,
| | - N.T. Rosendaal
- University of Hawaii, Honolulu, Hawaii,
- Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
| | - A. Maciel
- Universidade Federal do Rio Grande do Norte, Natal, Brazil,
| | - E.d. Viana
- Universidade Federal do Rio Grande do Norte, Natal, Brazil,
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Lemire M, Kwan M, Laouan-Sidi AE, Muckle G, Pirkle C, Ayotte P, Dewailly E. Local country food sources of methylmercury, selenium and omega-3 fatty acids in Nunavik, Northern Quebec. Sci Total Environ 2015; 509-510:248-59. [PMID: 25135671 DOI: 10.1016/j.scitotenv.2014.07.102] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 07/22/2014] [Accepted: 07/25/2014] [Indexed: 05/26/2023]
Abstract
Country foods are central to Inuit culture and replete in selenium (Se) and long-chain omega-3 polyunsaturated fatty acids (n-3 PUFA). However, some marine country foods bioaccumulate high concentrations of methylmercury (MeHg). Se and n-3 are associated with several health benefits in Nunavik, Northern Quebec, but, recent studies show that prenatal MeHg exposure is associated with visual, cognitive and behavioral deficit later in childhood. The study objectives are to identify contemporary country food sources of MeHg, Se and long-chain n-3 PUFA in Nunavik, particularly among childbearing-age women, taking into account regional differences in consumption profiles. The contribution of different country foods to daily MeHg, Se, long-chain n-3 PUFA intake (μg/kg body weight/day) was estimated using: (i) country food consumption and blood biomarkers data from the 2004 Nunavik Health Survey (387 women, 315 men), and (ii) data on MeHg, Se, long-chain n-3 PUFA concentrations found in Nunavik wildlife species. In the region where most traditional beluga hunting takes place in Nunavik, the prevalence of at-risk blood Hg (≥ 8 μg/L) in childbearing-age women was 78.4%. While most country foods presently consumed contain low MeHg, beluga meat, not a staple of the Inuit diet, is the most important contributor to MeHg: up to two-thirds of MeHg intake in the beluga-hunting region (0.66 of MeHg intake) and to about one-third in other regions. In contrast, seal liver and beluga mattaaq - beluga skin and blubber - only mildly contributed to MeHg (between 0.06 and 0.15 of MeHg intake), depending on the region. Beluga mattaaq also highly contributed to Se intake (0.30 of Se intake). Arctic char, beluga blubber and mattaaq, and seal blubber contributed to most long-chain n-3 PUFA intake. This study highlights the importance of considering interconnections between local ecosystems and dietary habits to develop recommendations and interventions promoting country foods' benefits, while minimizing the risk of MeHg from beluga meat, especially for childbearing-age women.
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Affiliation(s)
- M Lemire
- Axe santé des populations et pratiques optimales en santé, Centre de recherche du CHU de Québec, Université Laval, Québec, Canada.
| | - M Kwan
- Nunavik Research Center, Makivik Corporation, Kuujjuaq, Canada.
| | - A E Laouan-Sidi
- Axe santé des populations et pratiques optimales en santé, Centre de recherche du CHU de Québec, Université Laval, Québec, Canada.
| | - G Muckle
- Axe santé des populations et pratiques optimales en santé, Centre de recherche du CHU de Québec, Université Laval, Québec, Canada.
| | - C Pirkle
- Axe santé des populations et pratiques optimales en santé, Centre de recherche du CHU de Québec, Université Laval, Québec, Canada.
| | - P Ayotte
- Axe santé des populations et pratiques optimales en santé, Centre de recherche du CHU de Québec, Université Laval, Québec, Canada; Centre de toxicologie du Québec, Institut national de santé publique, Québec, Canada.
| | - E Dewailly
- Axe santé des populations et pratiques optimales en santé, Centre de recherche du CHU de Québec, Université Laval, Québec, Canada
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Waltman WD, Horne AM, Pirkle C. Influence of enrichment incubation time on the isolation of Salmonella. Avian Dis 1993; 37:884-7. [PMID: 8257386] [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: 01/29/2023]
Abstract
The optimum incubation times for Salmonella enrichment cultures were determined by inoculation of enrichment broths onto plating media after 24 hours at 37 C, after 48 hours at 37 C, after a 3-day delayed secondary enrichment (DSE), and after a 5-day DSE procedure. The results showed a step-wise increase in Salmonella isolations with the longer incubation times. Inoculation of the enrichment broths onto plating media after 24 hours incubation followed by a 5-day DSE made possible the detection of 96% to 98% of the Salmonella-positive samples and was the best combination of conditions.
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12
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Waltman WD, Horne AM, Pirkle C, Johnson DC. Prevalence of Salmonella enteritidis in spent hens. Avian Dis 1992; 36:251-5. [PMID: 1627097] [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: 12/27/2022]
Abstract
As part of a USDA/APHIS study on the prevalence of Salmonella enteritidis in spent laying hens, 3700 pooled cecal samples were cultured for Salmonella. Samples were received from a single processing plant and represented 81 commercial egg-type layer flocks from nine southern states. Salmonella were isolated from 2418 of the 3700 (65.4%) cecal pools, but only six isolates were serotype enteritidis. S. enteritidis was isolated from three flocks from two states but was detected in only six of 140 samples from those flocks. Various Salmonella isolation media and procedures were compared. Xylose-lysine-tergitol-4 plates detected 64% of the total Salmonella-positive cecal samples. Brilliant green agar with novobiocin detected 72% of the total Salmonella-positive samples. When used in combination, 82% of the positive samples were detected with these two plates. The remaining 425 Salmonella-positive samples were detected after delayed secondary enrichment.
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Waltman WD, Horne AM, Pirkle C, Dickson TG. Use of delayed secondary enrichment for the isolation of Salmonella in poultry and poultry environments. Avian Dis 1991; 35:88-92. [PMID: 2029264] [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: 12/29/2022]
Abstract
A conventional method of isolating Salmonella was compared with isolation using novobiocin-supplemented plating media and delayed secondary enrichment (DSE). The DSE greatly increased the ability to isolate Salmonella from poultry and environmental samples. Four hundred sixty-four isolations of Salmonella were made from a total of 4377 cultures (11%). Two hundred sixty-nine (58%) isolations of Salmonella were made following the 24-hour incubation; of these, 43 (9%) isolates were isolated only at this time. In comparison, a total of 421 (91%) Salmonella were isolated by DSE, of which 195 isolates (42%) were isolated only with DSE. The addition of novobiocin to the selective plating medium increased the isolation rate for Salmonella and reduced the level of contaminating bacteria growing on the plate.
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