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Zebrack BJ, Stuber ML, Meeske KA, Phipps S, Krull KR, Liu Q, Yasui Y, Parry C, Hamilton R, Robison LL, Zeltzer LK. Perceived positive impact of cancer among long-term survivors of childhood cancer: a report from the childhood cancer survivor study. Psychooncology 2012; 21:630-9. [PMID: 21425388 PMCID: PMC3697081 DOI: 10.1002/pon.1959] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2010] [Revised: 02/10/2011] [Accepted: 02/11/2011] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Investigations examining psychosocial adjustment among childhood cancer survivors have focused primarily on negative effects and psychopathology. Emergent literature suggests the existence of positive impact or adjustment experienced after cancer, as well. The purpose of this study is to examine the distribution of Perceived Positive Impact (PPI) and its correlates in young adult survivors of childhood cancer. METHODS 6425 survivors and 360 siblings completed a comprehensive health survey, inclusive of a modified version of the Post-traumatic Growth Inventory (PTGI) as a measure of PPI. Linear regression models were used to examine demographic, disease and treatment characteristics associated with PPI. RESULTS Survivors were significantly more likely than siblings to report PPI. Endorsement of PPI was significantly greater among female and non-white survivors, and among survivors exposed to at least one intense therapy, a second malignancy or cancer recurrence. Survivors diagnosed at older ages and fewer years since diagnosis were more likely to report PPI. Income, education and marital/relationship status appeared to have varied relationships to PPI depending upon the subscale being evaluated. CONCLUSIONS The existence and variability of PPI in survivors in this study suggest that individual characteristics, inclusive of race, gender, cancer type, intensity of treatment, age at diagnosis and time since diagnosis, have unique and specific associations with different aspects of perceived positive outcomes of childhood cancer.
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Kinahan KE, Sharp LK, Seidel K, Leisenring W, Didwania A, Lacouture ME, Stovall M, Haryani A, Robison LL, Krull KR. Scarring, disfigurement, and quality of life in long-term survivors of childhood cancer: a report from the Childhood Cancer Survivor study. J Clin Oncol 2012; 30:2466-74. [PMID: 22614987 DOI: 10.1200/jco.2011.39.3611] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
PURPOSE Childhood cancer survivors are at increased risk for adverse outcomes and chronic medical conditions. Treatment-related scarring, disfigurement, and persistent hair loss, in addition to their long-term impact on psychological distress or health-related quality of life (HRQOL), have received little attention. PATIENTS AND METHODS Self-reported scarring/disfigurement and persistent hair loss were examined in 14,358 survivors and 4,023 siblings from the Childhood Cancer Survivor Study. Multivariable models were used to examine associations with demographic and cancer treatment. The impact of disfigurement and hair loss on HRQOL (ie, Medical Outcomes Short Form-36) and emotional distress (ie, Brief Symptom Inventory-18) was examined. RESULTS Survivors reported a significantly higher rate of scarring/disfigurement compared with siblings for head/neck (25.1% v 8.4%), arms/legs (18.2% v 10.2%), and chest/abdomen (38.1% v 9.1%), as well as hair loss (14.0% v 6.3%). In age-, sex-, and race-adjusted models, cranial radiation exposure ≥ 36 Gy increased risk for head/neck disfigurement (relative risk [RR], 2.42; 95% CI, 2.22 to 2.65) and hair loss (RR, 4.24; 95% CI, 3.63 to 4.95). Adjusting for cranial radiation, age, sex, race, education, and marital status, survivor hair loss increased risk of anxiety (RR, 1.60; 95% CI, 1.23 to 2.07), whereas head/neck disfigurement increased risk of depression (RR, 1.19; 95% CI, 1.01 to 1.41). Limitations due to emotional symptoms were associated with head/neck disfigurement (RR, 1.24; 95% CI, 1.10 to 1.41), arm/leg disfigurement (RR, 1.19; 95% CI, 1.05 to 1.35), and hair loss (RR, 1.26; 95% CI, 1.09 to 1.47). CONCLUSION Survivors of childhood cancer are at increased risk for disfigurement and persistent hair loss, which is associated with future emotional distress and reduced quality of life. Future studies are needed to better identify and manage functional outcomes in these patients.
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Brinkman TM, Liu W, Armstrong GT, Gajjar AJ, Merchant TE, Kimberg CI, Kun LE, Srivastava DK, Gurney JG, Robison LL, Hudson MM, Krull KR. Tumor location and neurocognitive impairment in adult survivors of pediatric brain tumors: A report from the St. Jude Lifetime Cohort (SJLIFE). J Clin Oncol 2012. [DOI: 10.1200/jco.2012.30.15_suppl.9531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
9531 Background: Follow-up guidelines identify supratentorial tumor location as a risk factor for poor neurocognitive outcomes during childhood; yet few studies have systematically compared long-term cognitive outcomes between adult survivors of childhood infratentorial and supratentorial brain tumors. Methods: Neurocognitive functions were evaluated in 130 adult survivors of pediatric brain tumors (58 supratentorial and 72 infratentorial, mean [SD] current age = 27.4 years [5.2], age at diagnosis = 8.6 years [4.6], and time since diagnosis = 18.8 years [4.8]) participating in the SJLIFE long-term follow-up protocol. Age-adjusted standard scores for measures of intelligence, attention, memory, processing speed, and executive functioning were calculated, with clinical impairment defined as scores <10th percentile. Odds ratios (OR) and 95% confidence intervals (CI) were calculated using multivariable logistic regression models to examine associations between neurocognitive functions and tumor location. Results: As a group, survivors performed below average across multiple neurocognitive domains, including full scale IQ (mean=88.1; SD=18.2), with 34% demonstrating impaired IQ. Survivors of infratentorial tumors were more likely to be impaired on measures of focused attention (OR=2.19, 95% CI=1.03-4.65) and fine motor dexterity (OR=2.62, 95% CI=1.21-5.66) compared to survivors of supratentorial tumors. After adjusting for sex, age at diagnosis, shunt placement and cranial radiation (yes/no), infratentorial tumor location was only associated with reduced performance on a task of visual abstract reasoning (OR=3.76, 95% CI=1.40-10.1). Cranial radiation therapy was independently associated with impaired short-term memory (OR=15.6, 95% CI=1.64-147.8) and processing speed (OR=3.86, 95% CI=1.15-13.0). Conclusions: Tumor location was not associated with neurocognitive impairment after adjusting for treatment exposures. To further delineate potential differences associated with tumor location, future studies will examine factors including radiation dose/volume, extent of surgical resection, and medical complications.
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Lai JS, Krull KR, Zelko F, Wagner LI, Cella D, Goldman S. Parent-reported cognition and its clinical applications in pediatric oncology. J Clin Oncol 2012. [DOI: 10.1200/jco.2012.30.15_suppl.9532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
9532 Background: Parent-reported cognitive function (PCF) of their child's cognitive abilities is often used to trigger referral for comprehensive neuropsychological evaluation. The purpose of this study was to evaluate the clinical utility of PCF to predict impairment as measured by neuropsychological assessment and to identify factors associated with PCF. Methods: 565 patients (53% brain tumor, BT; 47% other types of cancer, non-BT) aged 7-21 (mean=14 yrs; 56% males) and their parents were recruited. 34% received radiation therapy, 72% chemotherapy and 71% surgery. Mean years since diagnosis= 5.7 yrs. PCF was measured using a 43-item pediatric perceived cognitive function item bank (pedsPCF). Parents completed the pedsPCF and a single item to rate their child's quality of life (QOL). Patients completed NINDS-NeuroQOL Depression, PedsQL Fatigue scales and neuropsychological tests (NPT) of psychomotor function, attention, learning and working memory using the CogState. K-Means clustering was used to group patients based on scores of depression, fatigue and pedsPCF. Results: PedsPCF significantly differentiated BT from non-BT, t=5.65, p<.01. Correlations between pedsPCF and NPT ranged from 0-0.66 (BT, < 1 yr diagnosis, psychomotor), depending on BT (vs non-BT), yrs since diagnosis and treatment, and NPT. Three clusters were identified with its own unique characteristics. Specifically, pedsPCF was significantly correlated w/ depression & fatigue for cluster 1; correlated w/ NPT scores for non-BT for cluster 2; and correlated w/ NPT for BT for cluster 3. Cluster membership of patients were significantly differentiated by Karnofsky rating, surgery (yes/no), QOL, parent education, child age, and child gender, but not types of treatment, and grade repetition (yes/no). Conclusions: This is one of the first studies to report an association between perceived cognitive function, using parent ratings, and neuropsychological performance. PedsPCF demonstrated clinical utility in differentiating between children with a brain tumor from children with other cancer types. PedsPCF has the potential to serve as a screening tool to facilitate efficient referral for comprehensive neurocognitive assessment.
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Mueller S, Fullerton HJ, Stratton K, Leisenring W, Weathers RE, Stovall M, Armstrong GT, Goldsby RE, Packer RJ, Robison LL, Krull KR. Abstract 8: Radiation and modifiable Stroke Risk Factors in adult Survivors of Pediatric Cancer: Results from the Childhood Cancer Survivor Study. Stroke 2012. [DOI: 10.1161/str.43.suppl_1.a8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Radiation therapy has vascular sequelae including moyamoya (brain radiation), and accelerated cervical atherosclerosis (neck radiation). However, the impact of cranial radiation therapy (CRT) and modifiable stroke risk factors such as hypertension (HTN) on stroke risk in adulthood remains poorly understood.
Objective:
To assess long-term incidence rates and risk factors for stroke in survivors of childhood cancer followed by the Childhood Cancer Survivor Study (CCSS).
Methods:
CCSS is a multi-institutional longitudinal cohort study of 14,358 survivors of childhood cancer diagnosed between 1970 and 1986, and 4,023 randomly selected sibling controls. The age-adjusted incidence rates of self-reported late-occurring first-stroke (≥ 5 years after cancer diagnosis) were calculated for survivors compared to siblings. Multivariable Cox Proportional Hazards models were used to identify independent stroke predictors.
Results:
During a mean follow-up of 23.3 years, 292 survivors reported a late-occurring stroke of which 125 (42.8%) occurred in CNS tumor survivors who constituted only (13%) of the survivor population. The age-adjusted stroke rate per 100,000 person-years at age 23 was 77 (95% CI 62 - 96) for all pediatric cancer survivors and 292 (95% CI 208-409) for CNS tumor survivors compared to 9.3 (95% CI 4 - 23) for siblings. CRT increased stroke risk in a dose dependent manner and cumulative incidence continues to rise decades after diagnosis (see
Figure
). Treatment with 30-49 Gy CRT had a relative stroke risk of 5.9 (95% CI 3.5-9.9) compared to 11.0 (95% CI 7.4-16.5) in the 50+ Gy CRT group. The cumulative incidence of stroke 20 years post diagnosis was 0.7% (95% CI 0.5 - 1.0) for no CRT, 2.9% (95% CI 1.4 - 4.4) for 30-49.9 Gy CRT, and 4.9% (95% CI 3.4-6.4) for ≥ 50 Gy CRT. HTN increased stroke risk by 4-fold. If diabetes was present together with HTN in CNS tumor survivors, the RR increased from 2.9 (95% C.I. 1.6-5.3) for HTN alone to 14.4 (95% CI 5.7 - 36.2).
Conclusion:
Survivors of pediatric cancer treated with CRT have an increased stroke risk that is dose dependent and increases with age. Modifiable risk factors such as HTN and diabetes further increased this risk and should be monitored and treated aggressively in these survivors to reduce the risk of late-occurring stroke.
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Ness KK, Hudson MM, Pui CH, Green DM, Krull KR, Huang TT, Robison LL, Morris EB. Neuromuscular impairments in adult survivors of childhood acute lymphoblastic leukemia: associations with physical performance and chemotherapy doses. Cancer 2012; 118:828-38. [PMID: 21766297 PMCID: PMC3197897 DOI: 10.1002/cncr.26337] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Revised: 05/12/2011] [Accepted: 05/19/2011] [Indexed: 01/12/2023]
Abstract
BACKGROUND Treatment regimens for childhood acute lymphoblastic leukemia (ALL) contain neurotoxic agents that may interfere with neuromuscular health. In this study, the authors examined associations between neuromuscular impairments and physical function and between neuromuscular impairments and doses of vincristine and intrathecal methotrexate used to treat leukemia among survivors of childhood ALL. METHODS ALL survivors >10 years from diagnosis participated in neuromuscular performance testing. Treatment data were abstracted from medical records. Regression models were used to evaluate associations between treatment factors, neuromuscular impairments, and physical performance. RESULTS Among 415 survivors (median age, 35 years; age range, 21-52 years), balance, mobility, and 6-minute walk (6MW) distances were 1.3 standard deviations below age-specific and sex-specific values in 15.4%, 3.6%, and 46.5% of participants, respectively. Impairments included absent Achilles tendon reflexes (39.5%), active dorsiflexion range of motion (ROM) <5 degrees (33.5%), and impaired knee extension strength (30.1%). In adjusted models (including cranial radiation), survivors who received cumulative intrathecal methotrexate doses ≥215 mg/m(2) were 3.4 times more likely (95% confidence interval, 1.2-9.8 times more likely) to have impaired ROM than survivors who received no intrathecal methotrexate, and survivors who received cumulative vincristine doses ≥39 mg/m(2) were 1.5 times more likely (95% CI, 1.0-2.5 times more likely) to have impaired ROM than survivors who received lower cumulative doses of vincristine. Higher intrathecal methotrexate doses were associated with reduced knee extension strength and 6MW distances. CONCLUSIONS Neuromuscular impairments were prevalent in childhood ALL survivors and interfered with physical performance. Higher cumulative doses of vincristine and/or intrathecal methotrexate were associated with long-term neuromuscular impairments, which have implications on future function as these survivors age.
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Green DM, Cox CL, Zhu L, Krull KR, Srivastava DK, Stovall M, Nolan VG, Ness KK, Donaldson SS, Oeffinger KC, Meacham LR, Sklar CA, Armstrong GT, Robison LL. Risk factors for obesity in adult survivors of childhood cancer: a report from the Childhood Cancer Survivor Study. J Clin Oncol 2012; 30:246-55. [PMID: 22184380 PMCID: PMC3269951 DOI: 10.1200/jco.2010.34.4267] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Accepted: 09/16/2011] [Indexed: 11/20/2022] Open
Abstract
PURPOSE Many Childhood Cancer Survivor Study (CCSS) participants are at increased risk for obesity. The etiology of their obesity is likely multifactorial but not well understood. PATIENTS AND METHODS We evaluated the potential contribution of demographic, lifestyle, treatment, and intrapersonal factors and self-reported pharmaceutical use to obesity (body mass index ≥ 30 kg/m2) among 9,284 adult (> 18 years of age) CCSS participants. Independent predictors were identified using multivariable regression models. Interrelationships were determined using structural equation modeling (SEM). RESULTS Independent risk factors for obesity included cancer diagnosed at 5 to 9 years of age (relative risk [RR], 1.12; 95% CI, 1.01 to 1.24; P = .03), abnormal Short Form-36 physical function (RR, 1.19; 95% CI, 1.06 to 1.33; P < .001), hypothalamic/pituitary radiation doses of 20 to 30 Gy (RR, 1.17; 95% CI, 1.05 to 1.30; P = .01), and paroxetine use (RR, 1.29; 95% CI, 1.08 to 1.54; P = .01). Meeting US Centers for Disease Control and Prevention guidelines for vigorous physical activity (RR, 0.90; 95% CI, 0.82 to 0.97; P = .01) and a medium amount of anxiety (RR, 0.86; 95% CI, 0.75 to 0.99; P = .04) reduced the risk of obesity. Results of SEM (N = 8,244; comparative fit index = 0.999; Tucker Lewis index = 0.999; root mean square error of approximation = 0.014; weighted root mean square residual = 0.749) described the hierarchical impact of the direct predictors, moderators, and mediators of obesity. CONCLUSION Treatment, lifestyle, and intrapersonal factors, as well as the use of specific antidepressants, may contribute to obesity among survivors. A multifaceted intervention, including alternative drug and other therapies for depression and anxiety, may be required to reduce risk.
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Kunin-Batson A, Kadan-Lottick N, Zhu L, Cox C, Bordes V, Srivastava DK, Zeltzer L, Robison LL, Krull KR. Predictors of independent living status in adult survivors of childhood cancer: a report from the Childhood Cancer Survivor Study. Pediatr Blood Cancer 2011; 57:1197-203. [PMID: 21294244 PMCID: PMC3139702 DOI: 10.1002/pbc.22982] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Accepted: 11/23/2010] [Indexed: 01/12/2023]
Abstract
BACKGROUND Adult survivors of childhood cancer and their siblings are compared on one of the most salient developmental milestones of adulthood, the ability to live independently. PROCEDURE Adult survivors of childhood cancers (n = 6,047) and siblings (n = 2,326), all 25 years of age and older, completed a long-term follow-up questionnaire that assessed adaptive, neurocognitive, and psychological functioning, as well as demographic and health status. Multivariable logistic regression analyses and structural equation modeling (SEM) were used to identify predictors of independent living. RESULTS Compared to siblings (n = 206, 8.7%), survivors (n = 1063; 17.7%) were more than twice as likely to live dependently (OR 2.07; 95% confidence interval [CI] 1.77-2.42). Survivors diagnosed with CNS tumors (OR 0.13, 95% CI 0.10-0.18) or leukemia (OR 0.29, 95% CI 0.23-0.27) were significantly less likely to live independently compared to those diagnosed with Hodgkin lymphoma. Other risk factors for reduced independent living included cranial radiation (≤ 24 Gy OR 0.76, 95% CI 0.62-0.93; >24 Gy OR 0.31, 95% CI 0.24-0.41), use of neuroleptic, anticonvulsant, or psychostimulant medication (OR 0.32, 95% CI 0.24-0.43), attention and processing speed problems (OR 0.58, 95% CI 0.47-0.71), poor physical functioning (OR 0.49, 95% CI 0.38-0.63), depression (OR 0.68, 95% CI 0.53-0.88), and racial/ethnic minority status (OR 0.39, 95% CI 0.30-0.51). SEM demonstrated that neurocognitive functioning had both direct effects on independent living status, and indirect effects through use of neurologically directed medication, depression, and poor mental health. CONCLUSION Adult survivors of childhood cancer who experience neurocognitive, psychological, or physical late effects are less likely to live independently as adults.
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Krull KR, Khan RB, Ness KK, Ledet D, Zhu L, Pui CH, Howard SC, Srivastava DK, Sabin ND, Hudson MM, Morris EB. Symptoms of attention-deficit/hyperactivity disorder in long-term survivors of childhood leukemia. Pediatr Blood Cancer 2011; 57:1191-6. [PMID: 21280202 PMCID: PMC3140624 DOI: 10.1002/pbc.22994] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Accepted: 12/01/2010] [Indexed: 11/11/2022]
Abstract
BACKGROUND Survivors of childhood acute lymphoblastic leukemia (ALL) sometimes have clinical features that suggest attention-deficit/hyperactivity disorder (ADHD), though few studies have examined specific symptoms in survivors. PROCEDURE Long-term survivors of childhood ALL (n = 161) received a neurological examination, while parents completed rating scales to establish formal criteria for ADHD. Symptom profiles were generated and compared across demographic and treatment characteristics, as well as medical tests associated with brain pathology. RESULTS Prevalence rates of ADHD were similar in survivors (10.5%) compared to those reported in the general population (7-10%). However, 25.5% of survivors reported symptoms that impair functioning in multiple settings, with attention problems being most common. These symptoms were associated with cranial radiation therapy (CRT) (mean inattentive symptoms [SD] = 3.6 [3.19] for group treated with CRT vs. 1.6 [2.40] for non-CRT group, P = 0.0006), and survivors who demonstrated impaired anti-saccades during the neurologic exam (mean inattentive symptoms [SD] = 3.4 [3.29] for those with impaired anti-saccades vs. 1.4 [2.41] for those with normal anti-saccades; P = 0.0004). CONCLUSIONS The presence of a neurologically-based phenotype of attention problems in survivors of leukemia that is not fully captured by the syndrome of ADHD suggests that treatments specific to childhood ALL should be explored.
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Lu Q, Krull KR, Leisenring W, Owen JE, Kawashima T, Tsao JCI, Zebrack B, Mertens A, Armstrong GT, Stovall M, Robison LL, Zeltzer LK. Pain in long-term adult survivors of childhood cancers and their siblings: a report from the Childhood Cancer Survivor Study. Pain 2011; 152:2616-2624. [PMID: 21907493 DOI: 10.1016/j.pain.2011.08.006] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2010] [Revised: 06/08/2011] [Accepted: 08/03/2011] [Indexed: 12/22/2022]
Abstract
Little is known about pain among long-term adult survivors of childhood cancers. The study investigated pain prevalence in this population compared with sibling controls and examined pain-related risk factors. Three self-reported pain outcomes including pain conditions, prescription analgesics used, and pain attributed to cancer and treatment were assessed among 10,397 cancer survivors and 3034 sibling controls from the Childhood Cancer Survivor Study. Pain conditions (pain/abnormal sensation, migraines, and other headaches) were reported by 12.3%, 15.5%, and 20.5% of survivors, respectively; 16.7% of survivors reported use of prescription analgesics, and 21% attributed pain to cancer and treatment. Risks of reporting pain conditions and using prescription analgesics were higher among survivors than siblings, adjusting for sociodemographic factors. Younger age at diagnosis and a history of non-Hodgkin lymphoma, Wilms tumor, or neuroblastoma (compared to leukemia) were associated with greater risk of reporting pain conditions. A history of bone cancer or soft tissue sarcoma (compared to leukemia) was associated with greater risks of using prescription analgesics and cancer-related pain attribution. Non-brain-directed scatter irradiation was associated with elevated risk for migraines and cancer-related pain attribution. Female gender and lower educational attainment were associated with increased reports of all 3 pain outcomes; minority status, unemployment, and being single were associated with greater risks for reporting pain conditions. These findings contribute to the understanding of pain and associated risk factors among adult survivors of childhood cancer and suggest areas of focus for pain intervention.
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Kamdar KY, Krull KR, El-Zein RA, Brouwers P, Potter BS, Harris LL, Holm S, Dreyer Z, Scaglia F, Etzel CJ, Bondy M, Okcu MF. Folate pathway polymorphisms predict deficits in attention and processing speed after childhood leukemia therapy. Pediatr Blood Cancer 2011; 57:454-60. [PMID: 21618410 PMCID: PMC3134130 DOI: 10.1002/pbc.23162] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Accepted: 03/23/2011] [Indexed: 12/23/2022]
Abstract
BACKGROUND Neurocognitive impairment occurs in 20-40% of childhood acute lymphoblastic leukemia (ALL) survivors, possibly mediated by folate depletion and homocysteine elevation following methotrexate treatment. We evaluated the relationship between folate pathway polymorphisms and neurocognitive impairment after childhood ALL chemotherapy. PROCEDURE Seventy-two childhood ALL survivors treated with chemotherapy alone underwent a neurocognitive battery consisting of: Trail Making Tests A (TMTA) and B (TMTB), Grooved Pegboard Test Dominant-Hand and Nondominant-Hand, Digit Span subtest, and Verbal Fluency Test. We performed genotyping for: 10-methylenetetrahydrofolate reductase (MTHFR 677C>T and MTHFR 1298A>C), serine hydroxymethyltransferase (SHMT 1420C>T), methionine synthase (MS 2756 A>G), methionine synthase reductase (MTRR 66A>G), and thymidylate synthase (TSER). Student's two sample t-test and analysis of covariance were used to compare test scores by genotype. RESULTS General impairment on the neurocognitive battery was related to MTHFR 1298A>C (P = 0.03) and MS 2756A>G (P = 0.05). Specifically, survivors with MTHFR 1298AC/CC genotypes scored, on average, 13 points lower on TMTB than those with MTHFR 1298AA genotype (P = 0.001). The MS 2756AA genotype was associated with a 12.2 point lower mean TMTA score, compared to MS 2756 AG/GG genotypes (P = 0.01). The TSER 2R/3R and 3R/3R genotypes were associated with an 11.4 point lower mean score on TMTB, compared to the TSER 2R/2R genotype (P = 0.03). Survivors with ≥6 folate pathway risk alleles demonstrated a 9.5 point lower mean TMTA score (P = 0.06) and 14.5 point lower TMTB score (P = 0.002) than survivors with <6 risk alleles. CONCLUSIONS Folate pathway polymorphisms are associated with deficits in attention and processing speed after childhood ALL therapy.
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Nightingale CL, Quinn GP, Shenkman EA, Curbow BA, Zebrack BJ, Krull KR, Huang IC. Health-Related Quality of Life of Young Adult Survivors of Childhood Cancer: A Review of Qualitative Studies. J Adolesc Young Adult Oncol 2011; 1:124-132. [PMID: 23610733 PMCID: PMC3621306 DOI: 10.1089/jayao.2011.0033] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Purpose: The occurrence of late effects, combined with traditional growth and developmental issues, can significantly affect the health-related quality of life (HRQOL) of young adult survivors of childhood cancer (YASCC). Limited HRQOL measurement tools have been developed or validated for YASCC. The purpose of this study was to identify the domains of HRQOL that are unique to YASCC by conducting a systematic review of qualitative studies. Specifically, we compared the findings to the classical framework of HRQOL that was developed for survivors of adult-onset cancer and identified specific domains not being assessed in existing HRQOL instruments for YASCC. Methods: We searched qualitative studies published in peer-reviewed journals from 2000 to 2010 in the PsychINFO, PubMed, and EBSCOhost databases. A set of keywords and inclusion/exclusion criteria were utilized to identify eligible studies with a focus on survivorship and HRQOL issues of YASCC. Results: Sixteen studies met the inclusion/exclusion criteria and were investigated in this study. Six important domains of HRQOL were identified (physical, social, psychological, spiritual, fertility/sexual, resilience, and body appearance) with several sub-domains. Conclusion: Use of the classical HRQOL framework and existing instruments is not comprehensive enough for YASCC. Adding unique domains to the classical framework and existing instruments will make them valuable tools for measuring the HRQOL of YASCC and increase health professionals' ability to identify if and when psychosocial services are needed for this unique population.
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Kirchhoff AC, Krull KR, Ness KK, Armstrong GT, Park ER, Stovall M, Robison LL, Leisenring W. Physical, mental, and neurocognitive status and employment outcomes in the childhood cancer survivor study cohort. Cancer Epidemiol Biomarkers Prev 2011; 20:1838-49. [PMID: 21844244 DOI: 10.1158/1055-9965.epi-11-0239] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
INTRODUCTION We examined the relationship of physical, mental, and neurocognitive function with employment and occupational status in the Childhood Cancer Survivor Study. METHODS We included survivors 25 years or older with available short form-36 (physical and mental health component scores), brief symptom inventory (depression, anxiety, and somatization), and neurocognitive questionnaire (task efficiency, emotional regulation, organization, and memory). We generated relative risks (RR) from generalized linear models for these measures on unemployment (n = 5,386) and occupation (n = 3,763) outcomes adjusted for demographic and cancer-related factors and generated sex-stratified models. RESULTS Poor physical health was associated with an almost eightfold higher risk of health-related unemployment (P < 0.001) compared to survivors with normal physical health. Male survivors with somatization and memory problems were approximately 50% (P < 0.05 for both) more likely to report this outcome, whereas task efficiency limitations were significant for both sexes (males: RR = 2.43, P < 0.001; females: RR = 2.28, P < 0.001). Employed female survivors with task efficiency, emotional regulation, and memory limitations were 13% to 20% (P < 0.05 for all) less likely to work in professional or managerial occupations than unaffected females. CONCLUSIONS Physical problems may cause much of the health-related unemployment among childhood cancer survivors. Whereas both male and female survivors with neurocognitive deficits--primarily in task efficiencies--are at risk for unemployment, employed female survivors with neurocognitive deficits may face poor occupational outcomes more often than males. IMPACT Childhood cancer survivors are at risk for poor employment outcomes. Screening and intervention for physical, mental, and neurocognitive limitations could improve employment outcomes for this population.
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Lai JS, Butt Z, Zelko F, Cella D, Krull KR, Kieran MW, Goldman S. Development of a parent-report cognitive function item bank using item response theory and exploration of its clinical utility in computerized adaptive testing. J Pediatr Psychol 2011; 36:766-79. [PMID: 21378106 PMCID: PMC3146757 DOI: 10.1093/jpepsy/jsr005] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Revised: 01/04/2011] [Accepted: 01/10/2011] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVE The purpose of this study is to report the reliability, validity, and clinical utility of a parent-report perceived cognitive function (pedsPCF) item bank. METHODS From the U.S. general population, 1,409 parents of children aged 7-17 years completed 45 pedsPCF items. Their psychometric properties were evaluated using Item Response Theory (IRT) approaches. Receiver operating characteristic (ROC) curves and discriminant function analysis were used to predict clinical problems on child behavior checklist (CBCL) scales. A computerized adaptive testing (CAT) simulation was used to evaluate clinical utility. RESULTS The final 43-item pedsPCF item bank demonstrates no item bias, has acceptable IRT parameters, and provides good prediction of related clinical problems. CAT simulation resulted in correlations of 0.98 between CAT and the full-length pedsPCF. CONCLUSIONS The pedsPCF has sound psychometric properties, U.S. general population norms, and a brief-yet-precise CAT version is available. Future work will evaluate pedsPCF in other clinical populations in which cognitive function is important.
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315
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Hudson MM, Ness KK, Nolan VG, Armstrong GT, Green DM, Morris EB, Spunt SL, Metzger ML, Krull KR, Klosky JL, Srivastava DK, Robison LL. Prospective medical assessment of adults surviving childhood cancer: study design, cohort characteristics, and feasibility of the St. Jude Lifetime Cohort study. Pediatr Blood Cancer 2011; 56:825-36. [PMID: 21370418 PMCID: PMC3088729 DOI: 10.1002/pbc.22875] [Citation(s) in RCA: 191] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2010] [Accepted: 09/20/2010] [Indexed: 11/11/2022]
Abstract
BACKGROUND To facilitate prospective medical assessment of adults surviving pediatric malignancies and advance knowledge about long-term childhood cancer survivor health, St. Jude Children's Research Hospital (SJCRH) is establishing a lifetime cohort of survivors. METHODS Eligibility criteria for inclusion in the St. Jude Lifetime Cohort (SJLIFE) study include: (1) diagnosis of childhood malignancy treated at SJCRH; (2) survival ≥ 10 years from diagnosis; and (3) current age ≥ 18 years. Three levels of participation are offered: (1) comprehensive evaluation on SJCRH campus; (2) limited home evaluation; or (3) completion of health surveys only. A systematic recruitment structure based upon blocks of 50 patients initially focused on leukemia and lymphoma survivors and patients eligible for pilot studies. RESULTS As of January 1, 2010, 1,625 (42%) of 3,900 eligible ≥ 10-year survivors have been contacted. Among the first 1,000 potentially eligible survivors selected for recruitment, 971 were subsequently confirmed to fulfill eligibility criteria. To date, 898/971 (92.5%) have been successfully contacted of whom 825 (91.8%) have agreed to participate. Among participants, 88.6% agreed to comprehensive medical evaluation, 0.4% limited local evaluation, and 11.0% survey only. Anticipated minimum overall participation rate for medical evaluation is 75.3% (731/971). Comparison of those contacted who agreed versus declined to participate revealed a greater proportion of males who declined participation (P = 0.001). CONCLUSIONS Early results of the SJLIFE study support its feasibility to recruit aging childhood cancer survivors to research investigations evaluating late health outcomes by medical assessments.
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316
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Clanton NR, Klosky JL, Li C, Jain N, Srivastava DK, Mulrooney D, Zeltzer L, Stovall M, Robison LL, Krull KR. Fatigue, vitality, sleep, and neurocognitive functioning in adult survivors of childhood cancer: a report from the Childhood Cancer Survivor Study. Cancer 2011; 117:2559-68. [PMID: 21484777 DOI: 10.1002/cncr.25797] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2010] [Revised: 10/04/2010] [Accepted: 10/25/2010] [Indexed: 11/08/2022]
Abstract
BACKGROUND Long-term survivors of childhood cancer are at risk for fatigue, sleep problems, and neurocognitive impairment, although the association between these outcomes has not been previously examined. METHODS Outcomes were evaluated in 1426 survivors from the Childhood Cancer Survivor Study using a validated Neurocognitive Questionnaire. Relative risks for neurocognitive impairment were calculated using demographic and treatment factors, and survivors' report on the Functional Assessment of Chronic Illness Therapy-Fatigue, the Short Form-36 Vitality Scale, the Pittsburgh Sleep Quality Index, and the Epworth Sleepiness Scale. RESULTS Neurocognitive impairment was identified in >20% of survivors, using sibling-based norms for comparison. Multivariate logistic regression models revealed that fatigue (risk ratio [RR], 1.34; 95% confidence interval [CI], 1.13-1.59), daytime sleepiness (RR, 1.68; 95% CI, 1.55-1.83), poor sleep quality (RR, 1.23; 95% CI, 1.01-1.49), and decreased vitality (RR, 1.75; 95% CI 1.33-2.30) were all associated with impaired task efficiency. Likewise, fatigue (RR, 1.77; 95% CI, 1.23-2.55), sleepiness (RR, 1.38; 95% CI, 1.14-1.67), and decreased vitality (RR, 3.08; 95% CI, 1.98-4.79) were predictive of emotional regulation problems. Diminished organization was associated with increased sleepiness (RR, 1.80; 95% CI, 1.31-2.48) and decreased vitality (RR, 1.90; 95% CI, 1.37-2.63). Impaired memory was associated with poor sleep quality (RR, 1.45; 95% CI, 1.19-1.76), increased sleepiness (RR, 2.05; 95% CI, 1.63-2.58), and decreased vitality (RR, 2.01; 95% CI, 1.42-2.86). The impact of fatigue, sleepiness, sleep quality, and vitality on neurocognitive outcomes was independent of the effects of cranial radiation therapy, steroids and antimetabolite chemotherapy, sex, and current age. CONCLUSIONS Neurocognitive function in long-term survivors of childhood cancer appears particularly vulnerable to the effects of fatigue and sleep disruption. These findings suggest sleep hygiene should be emphasized among survivors, as it may provide an additional mechanism for intervention to improve neurocognitive outcomes.
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317
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Krull KR, Annett RD, Pan Z, Ness KK, Nathan PC, Srivastava DK, Stovall M, Robison LL, Hudson MM. Neurocognitive functioning and health-related behaviours in adult survivors of childhood cancer: a report from the Childhood Cancer Survivor Study. Eur J Cancer 2011; 47:1380-8. [PMID: 21458986 DOI: 10.1016/j.ejca.2011.03.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2010] [Revised: 01/21/2011] [Accepted: 03/01/2011] [Indexed: 11/30/2022]
Abstract
BACKGROUND Positive health-related behaviours are essential for the future wellbeing of childhood cancer survivors, though relatively few maintain healthy behaviours into adulthood. METHODS Neurocognitive function and emotional distress were examined in 6,440 adult survivors from the Childhood Cancer Survivor Study, and used to predict rates of expected health-related behaviours. Covariates included cancer diagnosis, age, sex, body mass index, insurance status, income and antidepressant medication use, and multivariable models were constructed adjusting for these factors. FINDINGS In multivariable regression models, survivors with neurocognitive problems in task efficiency (RR=0.77, 95% CI=0.72-0.84) were less likely to meet the Centers for Disease Control guidelines for weekly physical activity. Survivors with neurocognitive impairment were more likely to engage in general survivor care (RR=1.20, 95% CI=1.10-1.30), and less likely to engage in dental care (RR=0.92, 95% CI=0.88-0.97). Obese survivors were less likely to report receiving a bone density exam (RR=0.67, 95% CI=0.54-0.82), a mammogram (RR=0.71, 95% CI=0.57-0.89), and a skin exam (RR=0.78, 95% CI=0.68-0.89). Survivors reporting somatisation, i.e. vague physical symptoms associated with anxiety, were more likely to report receiving echocardiograms (RR=1.53, 95% CI=1.32-1.77). INTERPRETATION These results support the link between neurocognitive and emotional problems and health-related behaviours in adult survivors of childhood cancer. Monitoring neurocognitive and emotional outcomes may help to identify survivors at risk for poor adherence to prescribed health behaviours and health screening exams.
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318
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Lai JS, Zelko F, Butt Z, Cella D, Kieran MW, Krull KR, Magasi S, Goldman S. Parent-perceived child cognitive function: results from a sample drawn from the US general population. Childs Nerv Syst 2011; 27:285-93. [PMID: 20652814 PMCID: PMC3885608 DOI: 10.1007/s00381-010-1230-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Accepted: 07/07/2010] [Indexed: 11/30/2022]
Abstract
PURPOSES This paper reports the development and evaluation of a perceived cognitive function (pedsPCF) item bank reported by parents of the pediatric US general population. METHODS Based on feedback from clinicians, parents, and children, we developed a scale sampling concerns related to children's cognitive functioning. We administered the scale to 1,409 parents of children aged 7-17 years; of them, 319 had a neurological diagnosis. Dimensionality of the pedsPCF was evaluated via factor analyses and its clinical utility studied by comparing parent ratings in patient groups and symptom cluster defined by the Child Behavior Checklist (CBCL). RESULTS Forty-four of 45 items met criteria for unidimensionality. The pedsPCF significantly differentiated samples defined by medication use, repeated grades, special education status, neurologic diagnosis, and relevant symptom clusters with large effect sizes (>0.8). It can predicted children symptoms with the correction rates ranging 79-89%. CONCLUSIONS We have provided empirical support for the unidimensionality of the pedsPCF item bank and evidence for its potential clinical utility. The pedsPCF is a promising measurement tool to screen children for further comprehensive cognitive tests.
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319
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Kirchhoff AC, Krull KR, Ness KK, Park ER, Oeffinger KC, Hudson MM, Stovall M, Robison LL, Wickizer T, Leisenring W. Occupational outcomes of adult childhood cancer survivors: A report from the childhood cancer survivor study. Cancer 2011; 117:3033-44. [PMID: 21246530 DOI: 10.1002/cncr.25867] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2010] [Revised: 10/19/2010] [Accepted: 11/04/2010] [Indexed: 11/10/2022]
Abstract
BACKGROUND The authors examined whether survivors from the Childhood Cancer Survivor Study were less likely to be in higher-skill occupations than a sibling comparison and whether certain survivors were at higher risk for lower-skill jobs. METHODS The authors created 3 mutually exclusive occupational categories for participants aged ≥ 25 years: Managerial/Professional, Nonphysical Service/Blue Collar, and Physical Service/Blue Collar. The authors examined currently employed survivors (4845) and their siblings (1727) in multivariable generalized linear models to evaluate the likelihood of being in 1 of the 3 occupational categories. Multinomial logistic regression was used among all participants to examine the likelihood of these outcomes compared to being unemployed (survivors, 6671; siblings, 2129). Multivariable linear models were used to assess survivor occupational differences by cancer- and treatment-related variables. Personal income was compared by occupation. RESULTS Employed survivors were less often in higher-skilled Managerial/Professional occupations (relative risk, 0.93; 95% confidence interval 0.89-0.98) than their siblings. Survivors who were black, were diagnosed at a younger age, or had high-dose cranial radiation were less likely to hold Managerial/Professional occupations than other survivors. In multinomial models, female survivors' likelihood of being in full-time Managerial/Professional occupations (27%) was lower than male survivors (42%) and female (41%) and male (50%) siblings. Survivors' personal income was lower than siblings within each of the 3 occupational categories in models adjusted for sociodemographic variables. CONCLUSIONS Adult childhood cancer survivors are employed in lower-skill jobs than siblings. Survivors with certain treatment histories are at higher risk for lower-skill jobs and may require vocational assistance throughout adulthood.
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320
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Stuber ML, Meeske KA, Leisenring W, Stratton K, Zeltzer LK, Dawson K, Kazak AE, Zebrack B, Mertens AC, Robison LL, Krull KR. Defining medical posttraumatic stress among young adult survivors in the Childhood Cancer Survivor Study. Gen Hosp Psychiatry 2011; 33:347-53. [PMID: 21762831 PMCID: PMC3140002 DOI: 10.1016/j.genhosppsych.2011.03.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Revised: 03/23/2011] [Accepted: 03/26/2011] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To examine the implications of use of differential thresholds for studying medical Posttraumatic Stress Disorder (PTSD). METHODS Self-report data from 6,542 young adult survivors of childhood cancer and 374 of their siblings were used to create clearly differentially defined groups to compare prevalence, correlations and predictors of posttraumatic stress. RESULTS Prevalence of posttraumatic stress in survivors compared to siblings differed by definition used, ranging from an odds ratio of 4.21 (95% CI 2.11-8.38) when posttraumatic stress was defined as meeting full symptoms plus functional impairment to 1.42 (95% CI 0.79-2.56) for partial symptoms with functional impairment. Re-experiencing symptoms did not substantially contribute to the ability to identify functional impairment and emotional distress. Although most of the variables associated with posttraumatic stress symptoms and impairment were consistent across definitions of PTSD, marital status and employment demonstrated nonproportional relationships. CONCLUSIONS Choice of the definition used in studying posttraumatic stress after serious illness alters not only epidemiological findings, but also associations with correlates and predictors. This is important in the current debate about the criteria for PTSD in the upcoming DSMV. Further study is needed to determine if these findings are applicable to people exposed to other types of traumatic events.
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321
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Heilbronner RL, Sweet JJ, Attix DK, Krull KR, Henry GK, Hart RP. Official position of the american academy of clinical neuropsychology on serial neuropsychological assessments: the utility and challenges of repeat test administrations in clinical and forensic contexts. Clin Neuropsychol 2010; 24:1267-78. [DOI: 10.1080/13854046.2010.526785] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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322
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Buchbinder D, Casillas J, Krull KR, Goodman P, Leisenring W, Recklitis C, Alderfer MA, Robison LL, Armstrong GT, Kunin-Batson A, Stuber M, Zeltzer LK. Psychological outcomes of siblings of cancer survivors: a report from the Childhood Cancer Survivor Study. Psychooncology 2010; 20:1259-68. [PMID: 22114043 DOI: 10.1002/pon.1848] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Revised: 08/02/2010] [Accepted: 08/04/2010] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To identify risk factors for adverse psychological outcomes among adult siblings of long-term survivors of childhood cancer. METHODS Cross-sectional, self-report data from 3083 adult siblings (mean age 29 years, range 18-56 years) of 5 + year survivors of childhood cancer were analyzed to assess psychological outcomes as measured by the Brief Symptom Inventory-18 (BSI-18). Sociodemographic and health data, reported by both the siblings and their matched cancer survivors, were explored as risk factors for adverse sibling psychological outcomes through multivariable logistic regression. RESULTS Self-reported symptoms of psychological distress, as measured by the global severity index of the BSI-18, were reported by 3.8% of the sibling sample. Less than 1.5% of siblings reported elevated scores on two or more of the subscales of the BSI-18. Risk factors for sibling depression included having a survivor brother (OR 2.22, 95% CI 1.42-3.55), and having a survivor with impaired general health (OR 2.15, 95% CI 1.18-3.78). Siblings who were younger than the survivor reported increased global psychological distress (OR 1.81, 95% CI 1.05-3.12), as did siblings of survivors reporting global psychological distress (OR 2.32, 95% CI 1.08-4.59). Siblings of sarcoma survivors reported more somatization than did siblings of leukemia survivors (OR 2.07, 95% CI 1.05-3.98). CONCLUSIONS These findings suggest that siblings of long-term childhood cancer survivors are psychologically healthy in general. There are, however, small subgroups of siblings at risk for long-term psychological impairment who may benefit from preventive risk-reduction strategies during childhood while their sibling with cancer is undergoing treatment.
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323
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Armstrong GT, Jain N, Liu W, Merchant TE, Stovall M, Srivastava DK, Gurney JG, Packer RJ, Robison LL, Krull KR. Region-specific radiotherapy and neuropsychological outcomes in adult survivors of childhood CNS malignancies. Neuro Oncol 2010; 12:1173-86. [PMID: 20716593 DOI: 10.1093/neuonc/noq104] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Childhood cancer survivors exposed to CNS irradiation are at increased risk for neurocognitive deficits; however, limited data exist linking outcomes with region-specific exposure to CNS irradiation. We report associations between region-specific radiation dose and self-reported neurocognitive and health-related quality of life (HRQOL) outcomes in 818 adult survivors of childhood central nervous system (CNS) malignancies from the Childhood Cancer Survivor Study. Survivors were compared with a sibling group and national normative samples to calculate standardized scores. Cumulative radiation dose was calculated for 4 specific brain regions. Logistic regression was used to estimate the association between radiation dose to specific brain regions and outcome measures of functional impairment adjusted for clinical and demographic factors, including sex and age at diagnosis. High radiation dose levels to temporal regions were associated with a higher risk for memory impairment (radiation doses ≥30 to <50 Gy: OR, 1.95; 95% CI, 1.01-3.78; dose ≥50 Gy: OR, 2.34; 95% CI, 1.25-4.39) compared with those with no radiation exposure. No such association was seen with radiation exposure to other regions. Exposure to temporal regions was associated with more social and general health problems, whereas exposure to frontal regions was associated with general health problems and physical performance limitations. Adult survivors of childhood CNS malignancies report higher rates of neuropsychological and HRQOL outcomes, which vary as a function of dose to specific neuroanatomical regions. Survivors with a history of radiation exposure to temporal brain regions are at increased risk for impairment in memory and social functioning.
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324
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Kadan-Lottick NS, Zeltzer LK, Liu Q, Yasui Y, Ellenberg L, Gioia G, Robison LL, Krull KR. Neurocognitive functioning in adult survivors of childhood non-central nervous system cancers. J Natl Cancer Inst 2010; 102:881-93. [PMID: 20458059 DOI: 10.1093/jnci/djq156] [Citation(s) in RCA: 145] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND We sought to measure self-reported neurocognitive functioning among survivors of non-central nervous system (CNS) childhood cancers, overall and compared with a sibling cohort, and to identify factors associated with worse functioning. METHODS In a retrospective cohort study, 5937 adult survivors of non-CNS cancers and 382 siblings completed a validated neuropsychological instrument with subscales in task efficiency, emotional regulation, organization, and memory. Scores were converted to T scores; scores in the worst 10% of siblings' scores (ie, T score > or =63) were defined as impaired. Non-CNS cancer survivors and siblings were compared with multivariable linear regression and log-binomial regression. Among survivors, log-binomial models assessed the association of patient and treatment factors with neurocognitive dysfunction. All statistical tests were two-sided. RESULTS Non-CNS cancer survivors had similar or slightly worse (<0.5 standard deviation) mean test scores for all four subscales than siblings. However, frequencies of impaired survivors were approximately 50% higher than siblings in task efficiency (13.0% of survivors vs 7.3% of siblings), memory (12.5% vs 7.6%), and emotional regulation (21.2% vs 14.4%). Impaired task efficiency was most often identified in patients with acute lymphoblastic leukemia who received cranial radiation therapy (18.1% with impairment), myeloid leukemia who received cranial radiation therapy (21.2%), and non-Hodgkin lymphoma (13.9%). In adjusted analysis, diagnosis age of younger than 6 years, female sex, cranial radiation therapy, and hearing impairment were associated with impairment. CONCLUSION A statistically and clinically significantly higher percentage of self-reported neurocognitive impairment was found among survivors of non-CNS cancers than among siblings.
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325
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Stuber ML, Meeske KA, Krull KR, Leisenring W, Stratton K, Kazak AE, Huber M, Zebrack B, Uijtdehaage SH, Mertens AC, Robison LL, Zeltzer LK. Prevalence and predictors of posttraumatic stress disorder in adult survivors of childhood cancer. Pediatrics 2010; 125:e1124-34. [PMID: 20435702 PMCID: PMC3098501 DOI: 10.1542/peds.2009-2308] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE This study compared the prevalence of symptoms of posttraumatic stress disorder (PTSD), with functional impairment and/or clinical distress, among very long-term survivors of childhood cancer and a group of healthy siblings. METHODS A total of 6542 childhood cancer survivors >18 years of age who received diagnoses between 1970 and 1986 and 368 siblings of cancer survivors completed a comprehensive demographic and health survey. RESULTS A total of 589 survivors (9%) and 8 siblings (2%) reported functional impairment and/or clinical distress in addition to the set of symptoms consistent with a full diagnosis of PTSD. Survivors had more than fourfold greater risk of PTSD, compared with siblings (odds ratio [OR]: 4.14 [95% confidence interval [CI]: 2.08-8.25]). With controlling for demographic and treatment variables, increased risk of PTSD was associated with educational level of high school or less (OR: 1.51 [95% CI: 1.16-1.98]), being unmarried (OR: 1.99 [95% CI: 1.58-2.50]), having annual income below $20,000 (OR: 1.63 [95% CI: 1.21-2.20]), and being unemployed (OR: 2.01 [95% CI: 1.62-2.51]). Intensive treatment also was associated with increased risk of full PTSD (OR: 1.36 [95% CI: 1.06-1.74]). CONCLUSIONS PTSD was reported significantly more often by survivors of childhood cancer than by sibling control subjects. Although most survivors apparently are faring well, a subset reported significant impairment that may warrant targeted intervention.
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