Breastfeeding practices among childhood cancer survivors.

PURPOSE: This cross-sectional study compared breastfeeding outcomes among childhood cancer survivors to those of women in the general population and evaluated whether breastfeeding is adversely affected by cancer treatment or endocrine-related late effects. METHODS: A self-reported survey ascertained breastfeeding practices and incorporated items from the questionnaires used in the Infant Feeding Practices Study II (IFPS II) to allow comparison with the general population. Among 710 eligible survivors, 472 (66%) responded. The participants were predominantly non-Hispanic White (84%), married (73%), and had some college or less (60%). The mean maternal age at the time of birth of the first child after cancer treatment was 24 years (SD 24.3 ± 4.8). RESULTS: Fewer survivors planned to breastfeed than did IFPS II controls (67% vs. 82%, P < .0001), and fewer survivors initiated breastfeeding (66% vs. 85%, P < .0001). The median breastfeeding duration was shorter among survivors, with early undesired weaning occurring sooner in the survivor group (1.4 months, interquartile range (IQR) 0.5-3.5 months) than in the IFPS II group (2.7 months, IQR 0.9-5.4 months). A higher proportion of survivors reported an unfavorable breastfeeding experience (19% vs. 7.5%, P < .0001) and early, undesired weaning (57.5%, 95% CI 51-64) than did IFPS II participants (45.2%, 95% CI 44-47, P = .0164). Among survivors who expressed intention and chose to breastfeed, 46% endorsed disrupted lactation related to physiologic problems with high risk in those overweight/obese. CONCLUSIONS: Survivors are at risk of negative breastfeeding experiences; however, lactation outcomes were not significantly associated with cancer diagnosis, treatments, or endocrine complications. IMPLICATIONS FOR CANCER SURVIVORS: Prior research has not examined the association of cancer treatments and clinically validated late effects with lactation outcomes in a clinically diverse childhood cancer survivor cohort. Findings from this study suggest that childhood cancer survivors, especially those who are overweight/obese, are at risk of having negative breastfeeding experiences. Early undesired weaning, physiologic problems related to lactation and misconceptions about breastfeeding, especially fears of passing on cancer through breastmilk, highlight the need for counseling and specialized support to optimize lactation outcomes in this vulnerable population.

Modifying bone mineral density, physical function, and quality of life in children with acute lymphoblastic leukemia.

BACKGROUND: The early effects of childhood acute lymphoblastic leukemia (ALL) include decreased physical function, bone mineral density (BMD/g/cm2 ), and health-related quality of life (HRQL). We assessed the capacity of a physical therapy and motivation-based intervention, beginning after diagnosis and continuing through the end of treatment, to positively modify these factors. PROCEDURE: A 2.5-year randomized controlled trial of 73 patients aged 4-18.99 years within 10 days of ALL diagnosis assessed BMD at baseline (T0 ) and end of therapy (T3 ), strength, range of motion, endurance, motor skills, and HRQL at baseline (T0 ), 8 (T1 ), 15 (T2 ), and 135 (T3 ) weeks. RESULTS: There were no significant changes between groups (intervention, n = 33; usual care, n = 40) in BMD (P = 0.059) at T3 or physical function and HRQL at T0 -T3 . While BMD declined in both the intervention (T0  = -0.21, T3  = -0.55) and usual care (T0  = -0.62, T3  = -0.78) groups, rates of decline did not differ between groups (P = 0.56). Univariate analysis (n = 73) showed associations of higher T3 bone density with body mass index T1 (P = 0.01), T2 (P = <0.0001), T3 (P = 0.01), T3 ankle flexibility/strength (P = 0.001), and T2 parent (P = 0.02)/T0 child (P = 0.03) perceptions of less bodily pain. CONCLUSIONS: The intervention delivered during treatment was not successful in modifying BMD, physical function, or HRQL. Physical activity, at the level and intensity required to modify these factors, may not be feasible during early treatment owing to the child's responses to the disease and treatment. Future studies will consider intervention implementation during late maintenance therapy, extending into survivorship.

Factors supporting cardiomyopathy screening among at-risk adult survivors of pediatric malignancies.

PURPOSE: Anthracyclines and chest irradiation place adult survivors of childhood cancer at risk of cardiomyopathy; many survivors do not obtain the recommended screening. Based on our recent clinical trial, the addition of telephone counseling to a printed survivorship care plan more than doubled survivors' risk-based screening. Here, we sought to measure the impact of specific factors targeted in the intervention for their impact on survivors' screening participation. METHODS: Study population-survivors participating in a randomized longitudinal intervention trial. Survivor questionnaires and medical records at baseline and 1-year follow-up provided the data. Within- and between-group differences in factors were assessed at baseline and follow-up; structural equation modeling (SEM) identified direct and indirect effects on screening participation. RESULTS: Of the 411 survivors, 55.3% were female, 89.3% white, 38.9% college graduates, and age 26-59 years (mean = 41 years, SD = 7.68 years). At follow-up, the counseling group demonstrated higher scores for intent to undergo screening (p < 0.001), adherence determination (p < 0.001), autonomous regulation (p < 0.001), competency (p = 0.03), perceived effort warranted for screening (p < 0.001), and perceived value of screening (p = 0.02). SEM identified four factors that directly influenced screening participation (n = 411, RMSEA = 0.02 [90% CI = 0.000-0.05]; CFI = 0.99; TLI = 0.99; WRMR = 0.63): the counseling intervention (p < 0.0001), intrinsic motivation (p < 0.0001), competency (p < 0.0001), and decisional control (p = 0.001); intrinsic motivation was also a mediator (p = 0.002) of screening participation. CONCLUSIONS: Direct interpersonal interaction that focused on multiple modifiable, autonomy-supportive factors powerfully enhances the efficacy of a print survivorship care plan in increasing survivors' screening participation. This finding challenges providers to reach beyond the disease treatment focus and embrace these strategies in their behavior change efforts.

Increasing Cardiomyopathy Screening in Childhood Cancer Survivors: A Cost Analysis of Advanced Practice Nurse Phone Counseling.

PURPOSE/OBJECTIVES: To document the per survivor and per additional survivor screening costs of a mailed survivorship care plan (SCP) with advanced practice nurse (APN) telephone counseling (SCP+C) or without APN telephone counseling (SCP).
. DESIGN: Randomized, longitudinal clinical trial.
. SETTING: St. Jude Children's Research Hospital in Memphis, Tennessee.
. SAMPLE: 411 at-risk pediatric cancer survivors (aged 26-59 years), stratified by age (younger than 30 years versus 30 years or older), recommended screening frequency (every one, two, or five years), gender, and cancer diagnosis (hematologic versus solid tumor).
. METHODS: Clinical and resource data costs were derived from trial data and external estimates.
. MAIN RESEARCH VARIABLES: The cost-effectiveness of left ventricular systolic function screening per survivor and per each additional survivor screened.
. FINDINGS: The per-survivor costs of SCP (n = 206) and SCP+C (n = 205) were $74.91 and $224.69, respectively. The estimated costs of SCP and SCP+C per additional survivor screened for two years disseminated in a medium-sized clinic (n = 101 survivors annually) were $345.41 and $293.85, respectively.
. CONCLUSIONS: Adding APN counseling to a printed SCP may help preserve cardiac health at little or no cost per additional survivor screened.
. IMPLICATIONS FOR NURSING: APN counseling is cost-effective and superior to the standard of care in supporting at-risk survivors' cardiac screening participation.

The unmet emotional, care/support, and informational needs of adult survivors of pediatric malignancies.

PURPOSE: This study describes the prevalence and predisposing factors for potentially modifiable unmet emotional, care/support, and information needs among adult survivors of childhood malignancies. METHODS: A randomly selected/stratified sample of participants in the Childhood Cancer Survivor Study (CCSS) responded to the CCSS-Needs Assessment Questionnaire (CCSS-NAQ) (n = 1189; mean [SD] current age, 39.7 [7.7], range = 26-61 years; 60.9 % women; mean [SD] years since diagnosis, 31.6 [4.7]). Survivors self-reported demographic information, health concerns, and needs; diagnosis/treatment data were obtained from medical records. Adjusted proportional risk ratios (prevalence ratios, PRs) were used to evaluate 77 separate needs. RESULTS: Fifty-four percent of survivors reported unmet psycho-emotional, 41 % coping, and 35 % care/support needs; 51, 35, and 33 %, respectively, reported unmet information needs related to cancer/treatment, the health care system, and surveillance. Female sex and annual income <$60K were associated with multiple needs; fewer needs were linked to diagnosis/years since/or age at diagnosis. Having moderate/extreme cancer-related anxiety/fear was associated with all needs, including a >6-fold increased prevalence for help dealing with "worry" (PR = 6.06; 95 % confidence interval [CI], 3.79-9.69) and anxiety (PR = 6.10; 95 % CI, 3.82-9.72) and a >5-fold increased prevalence for "needing to move on with life" (PR = 5.56; 95 % CI, 3.34-9.25) and dealing with "uncertainty about the future" (PR = 5.50; 95 % CI, 3.44-8.77). Radiation exposure and perceived health status were related to 42 and 29 needs, respectively. CONCLUSIONS: Demographic factors, disease/treatment characteristics, and intrapersonal factors can be used to profile survivors' unmet emotional, care/support, and information needs. IMPLICATIONS FOR CANCER SURVIVORS: These data can be used to enhance provider-survivor communication, identify at-risk subsamples, and appraise core intervention content.

Health care utilization, lifestyle, and emotional factors and mammography practices in the Childhood Cancer Survivor Study.

BACKGROUND: Women with a history of chest radiotherapy have an increased risk of breast cancer; however, many do not undergo annual recommended screening mammography. We sought to characterize the relationship between mammography and potentially modifiable factors, with the goal of identifying targets for intervention to improve utilization. METHODS: Of 625 female participants sampled from the Childhood Cancer Survivor Study, who were treated with chest radiotherapy, 551 responded to a survey about breast cancer screening practices. We used multivariate Poisson regression to assess several lifestyle and emotional factors, health care practices, and perceived breast cancer risk, in relation to reporting a screening mammogram within the last two years. RESULTS: Women who had a Papanicolaou test [prevalence ratio (PR): 1.77; 95% confidence interval (CI) 1.26-2.49], and who perceived their breast cancer risk as higher than the average woman were more likely to have had a mammogram (PR, 1.26; 95% CI, 1.09-1.46). We detected an attenuated effect of echocardiogram screening [PR, 0.70; 95% CI (0.52-0.95)] on having a mammogram among older women compared with younger women. Smoking, obesity, physical activity, coping, and symptoms of depression and somatization were not associated with mammographic screening. CONCLUSION: Our findings suggest that compliance with routine and risk-based screening can be an important indicator of mammography in childhood cancer survivors. In addition, there is a need to ensure women understand their increased breast cancer risk, as a means to encouraging them to follow breast surveillance guidelines. IMPACT: Screening encounters could be used to promote mammography compliance in this population.

Skeletal, neuromuscular and fitness impairments among children with newly diagnosed acute lymphoblastic leukemia.

This study describes skeletal, neuromuscular and fitness impairments among 109 children (median age 10 [range 4-18] years, 65.1% male, 63.3% white) with acute lymphoblastic leukemia (ALL). Outcomes were measured 7-10 days after diagnosis and compared to age- and sex-specific expected values. Associations between function and health-related quality of life (HRQL) were evaluated with logistic regression. Children with ALL had sub-optimal bone mineral density (BMD) Z-score/height (mean ± standard error: - 0.53 ± 0.16 vs. 0.00 ± 0.14, p < 0.01), body mass index percentile (57.6 ± 3.15 vs. 50.0 ± 3.27%, p = 0.02), quadriceps strength (201.9 ± 8.3 vs. 236.1 ± 5.4 N, p < 0.01), 6 min walk distance (385.0 ± 13.1 vs. 628.2 ± 7.1 m, p < 0.001) and Bruininks-Oseretsky Test of Motor Proficiency scores (23 ± 2.5 vs. 50 ± 3.4%, p < 0.01). Quadriceps weakness was associated with a 20.9-fold (95% confidence interval 2.5-173.3) increase in poor physical HRQL. Children with newly diagnosed ALL have weakness and poor endurance and may benefit from early rehabilitation that includes strengthening and aerobic conditioning.

Increasing cardiomyopathy screening in at-risk adult survivors of pediatric malignancies: a randomized controlled trial.

PURPOSE: To determine whether the addition of advanced-practice nurse (APN) telephone counseling to a printed survivorship care plan (SCP) significantly increases the proportion of at-risk survivors who complete cardiomyopathy screening. PATIENTS AND METHODS: Survivors age ≥ 25 years participating in the Childhood Cancer Survivor Study who received cardiotoxic therapy and reported no history of cardiomyopathy screening in the previous 5 years were eligible for enrollment. The 472 participants (mean age, 40.1 years; range, 25.0 to 59.0; 53.3% women) were randomly assigned to either standard care, consisting of an SCP summarizing cancer treatment and cardiac health screening recommendations (n = 234), or standard care plus two APN telephone counseling sessions (n = 238). The primary outcome-completion of cardiomyopathy screening within 1 year-was validated by medical records and compared between the two arms using adjusted relative risks (RRs) with 95% CIs. RESULTS: Participants in the standard and APN counseling groups were not statistically different by demographic or clinical characteristics. At the time of 1-year follow-up, 107 (52.2%) of 205 survivors in the APN group completed screening compared with 46 (22.3%) of 206 survivors in the non-APN group (P < .001). With adjustment for sex, age (< 30 v ≥ 30 years), and Children's Oncology Group-recommended screening frequency group (annual, 2 years, or 5 years), survivors in the APN group were > 2× more likely than those in the control group to complete the recommended cardiomyopathy screening (RR, 2.31; 95% CI, 1.74 to 3.07). CONCLUSION: The addition of telephone counseling to an SCP with cardiac health screening recommendations increases cardiomyopathy screening in at-risk survivors.

Noncancer-related mortality risks in adult survivors of pediatric malignancies: the childhood cancer survivor study.

PURPOSE: We sought to identify factors, other than cancer-related treatment and presence/severity of chronic health conditions, which may be associated with late mortality risk among adult survivors of pediatric malignancies. METHODS: Using the Childhood Cancer Survivor Study cohort and a case-control design, 445 participants who died from causes other than cancer recurrence/progression or non-health-related events were compared with 7,162 surviving participants matched for primary diagnosis, age at baseline questionnaire, time from diagnosis to baseline questionnaire, and time at-risk. Odds ratios (ORs) and 95 % confidence intervals (CIs) were calculated for overall/cause-specific mortality. Independent measures included number/severity of chronic conditions, medical care, health-related behaviors, and health perceptions/concerns. RESULTS: Adjusting for education, income, chemotherapy/radiation exposures, and number/severity of chronic health conditions, an increased risk for all-cause mortality was associated with exercising fewer than 3 days/week (OR = 1.72, CI 1.27-2.34), being underweight (OR = 2.58, CI 1.55-4.28), increased medical care utilization (P < 0.001), and self-reported fair to poor health (P < 0.001). Physical activity was associated with a higher risk of death among males (OR = 3.26, CI 1.90-5.61) reporting no exercise compared to those who exercised ≥3 times per week. Ever consuming alcohol was associated with a reduced risk of all-cause (OR = 0.61, CI 0.41-0.89) and other nonexternal causes of death (OR = 0.40, CI 0.20-0.79). Concerns/worries about future health (OR = 1.54, CI 1.10-2.71) were associated with increased all-cause mortality. CONCLUSIONS: Factors independent of cancer treatment and chronic health conditions modify the risk of death among adult survivors of pediatric cancer. IMPLICATIONS FOR CANCER SURVIVORS: Continued cohort observation may inform interventions to reduce mortality.

Survivor typologies predict medical surveillance participation: the childhood cancer survivor study.

BACKGROUND: Adult survivors of childhood cancer adhere poorly to recommended medical surveillance. We sought to identify modifiable factors that contribute to non-adherence. METHODS: Latent class analysis categorized survivors (ages 18-52 years) at risk of cardiac, breast, or bone late sequelae on the basis of their health-related concerns, fears, and motivation. These classifications were compared at two time points for self-reported adherence to recommended echocardiography, mammography, and bone densitometry screening. RESULTS: Three classes (worried, collaborative, and self-controlling) characterized survivors in each of the three risk groups: cardiac (N=564; Bayesian information criterion [BIC] =10,824.66; Lo-Mendell-Rubin parametric likelihood ratio test [LRMLRT] P= .002), breast (N=584; BIC=11,779.97; LRMLRT P< .001), and bone (N=613; BIC=11,773.56; LMRLRT P= .028). Only 9% of at-risk survivors in the self-controlling class reported undergoing bone density screening in 2005, compared with 17.2% in the collaborative class (P= .034). Thirteen percent of the self-controlling, 24% of collaborative (P= .025), and 34% of worried (P= .010) classes reported undergoing bone densitometry in 2009. Whereas 73% of at-risk survivors in the worried class reported having had an echocardiogram in 2009, only 57% of the collaborative (P= .040) and 43% of self-controlling (P< .001) classes did. In 2005 and 2009, respectively, fewer survivors in the self-controlling class (37% and 53%) than in the collaborative (51%, P= .038 and 70%, P= .01) and worried (58%, P= .002 and 69%, P= .025) classes reported undergoing mammograms. CONCLUSIONS: Modifiable intrapersonal characteristics associated with these three classes predict self-reported participation in medical surveillance. Continued observation and validation of these survivor profiles may inform tailored interventions to enhance survivors' screening participation. Copyright © 2012 John Wiley & Sons, Ltd.

Development of a comprehensive health-related needs assessment for adult survivors of childhood cancer.

PURPOSE: Examine the construct validity, stability, internal consistency, and item-response performance of a self-report health needs assessment for adult survivors of childhood cancer. METHODS: A 190-item mailed survey was completed by 1,178 randomly selected (stratified on age, diagnosis, time since diagnosis) Childhood Cancer Survivor Study participants (mean age, 39.66 [SD 7.71] years; time since diagnosis, 31.60 [SD 4.71] years). Minorities and rural residents were oversampled at a 2:1 ratio. RESULTS: The final instrument included 135 items comprising nine unidimensional subscales (Psycho-emotional, Health System Concerns, Cancer-Related Health Information, General Health, Survivor Care and Support, Surveillance, Coping, Fiscal Concerns, and Relationships). Confirmatory factor analysis (n = 1,178; RMSEA = 0.020; 90 % CI = 0.019-0.020; CFI = 0.956; TLI = 0.955) and person-item fit variable maps established construct validity. Across subscales, Cronbach's alpha was 0.94-0.97, and the 4-week test-retest correlations were 0.52-0.91. In a Rasch analysis, item reliability was 0.97-0.99, person reliability was 0.80-0.90, and separation index scores were 2.00-3.01. Significant subscale covariates of higher need levels included demographics, diagnosis, and treatment exposures. CONCLUSIONS: The Childhood Cancer Survivor Study Needs Assessment Questionnaire (CCSS-NAQ) is reliable and construct-valid, has strong item-response properties, and discriminates need levels. IMPLICATIONS FOR CANCER SURVIVORS: The CCSS-NAQ potentially can be used to: (1) directly assess adult childhood cancer survivors' self-reported health-related needs, (2) identify individuals or subgroups with higher-level needs, (3) inform prevention and direct intervention strategies, and (4) facilitate prioritization of health-care resource allocation.

Survivor profiles predict health behavior intent: the Childhood Cancer Survivor Study.

OBJECTIVES: To determine whether unique groups of adult childhood cancer survivors could be defined on the basis of modifiable cognitive, affective, and motivation indicators. Secondary objectives were to examine to what extent group membership co-varied with more static variables (e.g. demographics, disease, and treatment) and predicted intent for subsequent medical follow-up. METHODS: Using latent class analysis of data from 978 participants (ages, 18-52 years; mean, 31; and SD, 8) in the Childhood Cancer Survivor Study, we classified survivors according to their worries about health, perceived need for follow-up care, health motivation, and background variables. Intent to participate in medical follow-up, as a function of class membership, was tested using equality of proportions. RESULTS: The best-fitting model (BIC = 18 540.67, BLMRT = <0.001) was characterized by three distinctive survivor classes (worried, 19%; self-controlling, 26%; and collaborative, 55%) and three significant class covariates (gender, perceptions of health, and severity of late effects). A smaller proportion of survivors in the self-controlling group (81%) than in the worried (90%) (P = 0.015) and collaborative (88%) (P = 0.015) groups intended to obtain a routine medical checkup. A smaller proportion of survivors in the self-controlling group (32%) than in the collaborative (65%) (P = <0.001) and worried (86%) (P = <0.001) groups planned a cancer-related check-up. A smaller proportion of survivors in the collaborative group (65%) than in the worried group (86%) (P = <0.001) were likely to obtain a cancer-related check-up. CONCLUSIONS: Childhood cancer survivors can be classified according to the modifiable indicators. The classification is distinctive, predicts intent for future medical follow-up, and can inform tailored interventions.

Risk factors for obesity in adult survivors of childhood cancer: a report from the Childhood Cancer Survivor Study.

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.

Physical therapy and chiropractic use among childhood cancer survivors with chronic disease: impact on health-related quality of life.

INTRODUCTION: The use of rehabilitation services to address musculoskeletal, neurological and cardiovascular late effects among childhood cancer survivors could improve physical function and health-related quality-of-life (HRQL). We describe physical therapy (PT) and chiropractic utilization among childhood cancer survivors and their association with HRQL. METHODS: The sample included 5+ year survivors from the Childhood Cancer Survivor Study (N = 9,289). Questions addressing use of PT or chiropractic services and HRQL (Medical Outcomes Survey Short Form (SF-36)) were evaluated. Multivariable regression models compared PT and/or chiropractic utilization between survivors and siblings, and by diagnosis, treatment and demographic characteristics; associations between chronic disease, PT/chiropractic use, and HRQL were similarly evaluated. RESULTS: Survivors were not more likely to use PT (OR 1.0; 95% CI 0.8-1.2) or chiropractic (OR 0.8; 95% CI 0.7-1.0) services than siblings. More survivors reported using chiropractic (12.4%) than PT (9.2%) services. Older age and having health insurance were associated with utilization of either PT or chiropractic services. Grade 3-4 chronic conditions and a CNS tumor or sarcoma history were associated with PT but not with chiropractic service utilization. Survivors with musculoskeletal (OR 1.8; 95% CI 1.1-2.9), neurological (OR 3.4; 95% CI 1.6-6.9), or cardiovascular (OR 3.3; 95% CI 1.6-6.9) chronic conditions who used PT/chiropractic services were more likely to report poor physical health than survivors who did not use services. CONCLUSIONS: The reported prevalence of PT/chiropractic among survivors is consistent with that reported by siblings. Severity of late effects is associated with service use and with reporting poor physical health. IMPLICATIONS FOR CANCER SURVIVORS: Long-term childhood cancer survivors do not appear to utilize rehabilitation services to optimize physical function and support increased HRQL.

Physical performance limitations among adult survivors of childhood brain tumors.

BACKGROUND: Young adult survivors of childhood brain tumors (BTs) may have late effects that compromise physical performance and everyday task participation. The objective of this study was to evaluate muscle strength, fitness, physical performance, and task participation among adult survivors of childhood BTs. METHODS: In-home evaluations and interviews were conducted for 156 participants (54% men). Results on measures of muscle strength, fitness, physical performance, and participation were compared between BT survivors and members of a population-based comparison group by using chi-square statistics and 2-sample t tests. Associations between late effects and physical performance and between physical performance and participation were evaluated in regression models. RESULTS: : The median age of BT survivors was 22 years (range, 18-58 years) at the time of the current evaluation, and they had survived for a median of 14.7 years (range, 6.5-45.9 years) postdiagnosis. Survivors had lower estimates of grip strength (women, 24.7 + or - 9.2 kg vs 31.5 + or - 5.8 kg; men, 39.0 + or - 12.2 kg vs 53.0 + or - 10.1 kg), knee extension strength (women, 246.6 + or - 95.5 Newtons [N] vs 331.5 + or - 5.8 N; men, 304.7 + or - 116.4 N vs 466.6 + or - 92.1 N), and peak oxygen uptake (women, 25.1 + or - 8.8 mL/kg per minute vs 31.3 + or - 5.1 mL/kg per minute; men, 24.6 + or - 9.5 mL/kg per minute vs 33.2 + or - 3.4 mL/kg per minute) than members of the population-based comparison group. Physical performance was lower among survivors and was associated with not living independently (odds ratio [OR], 5.0; 95% confidence interval [CI], 2.0-12.2) and not attending college (OR, 2.3; 95% CI 1.2-4.4). CONCLUSIONS: Muscle strength and fitness values among BT survivors were similar to those among individuals aged > or = 60 years and were associated with physical performance limitations. Physical performance limitations were associated with poor outcomes in home and school environments. The current data indicated an opportunity for interventions targeted at improving long-term physical function in this survivor population.

Determinants of Mammography Screening Participation in Adult Childhood Cancer Survivors: Results From the Childhood Cancer Survivor Study.

Purpose/Objectives: To identify treatment, intrapersonal, and provider factors that influence childhood cancer survivors' adherence to recommended mammography screening.Design: Secondary analysis of data derived from three consecutive surveys within the Childhood Cancer Survivor Study.Sample: Female childhood cancer survivors: N = 335, X age = 30.92, X years after diagnosis = 21.79.Methods: T tests and structural equation modeling.Main Research Variables: Mammogram recency, health concerns, affect, motivation, and survivor-provider interaction.Findings: Forty-three percent of the variance was explained in mammogram recency. Survivors most likely to follow the recommended mammogram schedule were directly influenced by cancer treatment exposure to mantle radiation (p = 0.01), less intrinsic motivation (p = 0.01), positive affect (p = 0.05), recent visits to an oncology clinic (p = 0.01), discussion of subsequent cancer risks with a physician (p = 0.001), perceptions of more severe late effects (p = 0.05), age (40 years or older) (p

Medical screening participation in the childhood cancer survivor study.

BACKGROUND: Despite their risk for serious late sequelae, survivors of childhood cancer do not adhere to recommended medical screening guidelines. We identified treatment, survivor, physician, and contextual factors that may influence survivor adherence to recommended echocardiography and bone densitometry screening. METHODS: Structural equation modeling of data from the Childhood Cancer Survivor Study; 838 participants had received a diagnosis of and were treated for pediatric cancers between 1970 and 1986. RESULTS: Survivors at risk of cardiac sequelae (n = 316; mean [SD] age, 31.01 [7.40] years; age at diagnosis, 9.88 [5.88] years; and time since diagnosis, 21.14 [4.37] years) who reported more cancer-related visits (P = .01), having discussed heart disease with a physician (P < or = .001), with a sedentary lifestyle (P = .05), and less frequent health fears (P = .05) were most likely to follow the recommended echocardiogram schedule (R(2) = 23%). Survivors at risk of osteoporosis (n = 324; age, 30.20 [7.09] years; age at diagnosis, 9 .01 [5.51]years; and time since diagnosis, 21.20 [4.27] years) who reported more cancer-related visits (P = .05), were followed up at an oncology clinic (P = .01), had discussed osteoporosis with a physician (P < or = .001), and had a lower body mass index (P = .05) were most likely to adhere to the recommended bone density screening guidelines (R(2) = 26%). Symptoms and motivation influenced screening frequency in both models. CONCLUSIONS: Multiple factors influence survivor adherence to screening recommendations. It is likely that tailored interventions would be more successful in encouraging recommended screening in survivors of childhood cancer than would traditional health education approaches.

Promoting physical activity in childhood cancer survivors: results from the Childhood Cancer Survivor Study.

BACKGROUND: Although physical activity may modify the late effects of childhood cancer treatment, from 20% to 52% of adult survivors are sedentary. The authors of this report sought to identify modifiable factors that influence survivors' participation in physical activity. METHODS: Structural equation modeling of data were derived from the Childhood Cancer Survivors Study of adult survivors (current mean age, 30.98 years; mean years since diagnosis, 23.74; mean age at diagnosis, 9.25 years) who were diagnosed between 1970 and 1986. RESULTS: Approximately 40% of the variance in male survivors' recent participation versus nonparticipation in physical activity was explained directly and/or indirectly by self-reported health fears (P = .01), perceived primary-care physician (PCP) expertise (P = .01), baseline exercise frequency (P < or = .001), education level (P = .01), self-reported stamina (P = .01), cancer-related pain (P < or = .001), fatigue (P < or = .001), age at diagnosis (P = .01), cancer-related anxiety (P < or = .001), motivation (P = .01), affect (P = .01), and discussion of subsequent cancer risk with the PCP (P < or = .001) (N = 256; chi-square test statistic = 53.38; degrees of freedom [df] = 51; P = .38, Comparative Fit Index [CFI] = 1.000; Tucker Lewis Index [TLI] = 1.000; root mean square of approximation [RMSEA] = 0.014; weighted root mean square residual [WRMR] = 0.76). Thirty-one percent of the variance in women' recent physical activity participation was explained directly and/or indirectly by self-reported stamina (P < or = .001), fatigue (P = .01), baseline exercise frequency (P = .01), cancer-related pain (P < or = .001), cancer-related anxiety (P = .01), recency of visits with PCP (<0.001), quality of interaction with the PCP (P = .01), and motivation (P < or = .001; N = 366; chi-square test statistic = 67.52; df = 55; P = .12; CFI = 0.98; TLI = 0.98; RMSEA = 0.025; WRMR = 0.76). CONCLUSIONS: Gender-tailored intervention strategies in which providers specifically target motivation, fear, and affect may support physical activity in childhood cancer survivors.

Supporting breast self-examination in female childhood cancer survivors: a secondary analysis of a behavioral intervention.

PURPOSE/OBJECTIVES: To identify intervention targets that will increase the frequency of breast self-examination (BSE) in female survivors of childhood cancer. DESIGN: Secondary data analysis of longitudinal clinical trial data. SETTING: Outpatient clinic in a children's research hospital. SAMPLE: 149 female survivors (aged 12-18 years) a median of 11 years after diagnosis of leukemia or lymphoma (59%) or solid tumor (41%). METHODS: Paired t tests, Wilcoxon signed rank tests, repeated measures analysis of variance, and analysis of covariance. MAIN RESEARCH VARIABLES: BSE frequency, health risk perceptions, motivation, and fears or worries. FINDINGS: Baseline BSE frequency was the strongest influence on follow-up BSE. Baseline and follow-up age and school grade influenced follow-up BSE. Other influential variables included motivation for behavior change, motivation to commit to health promotion, concern about appearance, and an interaction between the intervention and mother's highest grade level. When baseline BSE frequency and school grade were statistically controlled, diagnosis and significant interactions between grade level and the follow-up measures of the mother's education, general fears about cancer, fears about cancer returning, and perceptions of susceptibility to late treatment effects were significant influences on BSE after intervention. CONCLUSIONS: Survivors least likely to perform BSE are fearful about cancer and are not motivated to change health behaviors. IMPLICATIONS FOR NURSING: Nurses should explore survivors' fears about cancer and late treatment effects to address misconceptions, use modeling techniques with return demonstrations to ensure competency in BSE, and tailor risk information to each survivor's background (socio-economic status, age, development) and cognitive (disease and treatment knowledge, risks) and affective (fears) characteristics to increase BSE motivation.

Subclinical late cardiac toxicity in childhood cancer survivors: impact on self-reported health.

BACKGROUND: The authors analyzed how self-reported health and self-reported modified New York Heart Association (NYHA) cardiac function scores were related to cardiac systolic function, cardiac risk factors, and cancer treatment history in childhood cancer survivors who reported no symptoms of cardiac disease. METHODS: Long-term survivors of pediatric cancer who were treated between 1971 and 1995 (current ages, 16-39.7 years) underwent noninvasive clinical and laboratory cardiac risk evaluation and responded to selected subscales of the Medical Outcomes Study 36-item Short Form Health Survey. Results were compared with survivor history of anthracycline therapy alone or with radiotherapy (n=127 patients; mean, 10 years after diagnosis) versus no anthracycline therapy (n=32 patients; mean, 11 years after diagnosis). RESULTS: Sex, current age, highest school grade completed, race, age at diagnosis, diagnostic group, years off therapy, fractional shortening (FS), heart rate, and smoking status were found to be independently predictive of self-reported health. Interaction between female sex and higher low-density lipoprotein values and between diagnosis and abnormal FS variably predicted low reported vitality and low reported modified New York Heart Association (NYHA) scores. Echocardiographic findings, cardiac risk factors, and treatment history explained 13% to 28% of the variance in perceived health and self-reported modified NYHA scores. CONCLUSIONS: Systolic function and cardiac risk factors were linked to lower self-reported health and NYHA scores even in the absence of clinically evident cardiotoxicity.