Late morbidity leading to hospitalization among 5‐year survivors of young adult cancer: A report of the childhood,adolescent and young adult cancer survivors research program

To estimate the risk of late morbidity leading to hospitalization among young adult cancer 5‐year survivors compared to the general population and to examine the long‐term effects of demographic and disease‐related factors on late morbidity, a retrospective cohort of 902 five‐year survivors of young adult cancer diagnosed between 1981 and 1999 was identified from British Columbia (BC) Cancer Registry. A matched comparison group (N = 9020) was randomly selected from the provincial health insurance plan. All hospitalizations until the end of 2006 were determined from the BC health insurance plan hospitalization records. The Poisson regression model was used to estimate the rate ratios for late morbidity leading to hospitalization except pregnancy after adjusting for sociodemographic and clinical risk factors. Overall, 455 (50.4%) survivors and 3,419 (37.9%) individuals in the comparison group had at least one type of late morbidity leading to hospitalization. The adjusted risk of this morbidity for survivors was 1.4 times higher than for the comparison group (95% CI = 1.22–1.54). The highest risks were found for hospitalization due to blood disease (RR = 4.2; 95% CI = 1.98–8.78) and neoplasm (RR = 4.3; 95% CI = 3.41–5.33). Survivors with three treatment modalities had three‐fold higher risk of having any type of late morbidity (RR = 3.22; 95% CI = 2.09–4.94) than the comparators. These findings emphasize that young adult cancer survivors still have high risks of a wide range of late morbidities.     

Health status of the oldest adult survivors of cancer during childhood

BACKGROUND:

Young adult survivors of childhood cancer have an increased risk for treatment‐related morbidity and mortality. In this study, the authors assessed how treatment for childhood cancer affects older‐adult health and health practices.

METHODS:

One hundred seven adults treated for childhood cancer between 1947 and 1968, known to have survived past age 50 years, were identified from a single‐institution cohort established in 1975. Updated vital status on eligible cases was obtained from public records. Survivors and a control group of their age‐matched siblings and cousins completed a mailed survey to assess physical and social function, healthcare practices, and the prevalence of common adult illnesses.

RESULTS:

Of the 107 survivors known to be alive at age 50 years, 16 were deceased at follow‐up; 7 deaths could be associated with prior treatment (second malignancy in radiation field [3], small bowel obstruction after abdominal radiation [2], and cardiac disease after chest irradiation [2]). The 55 survivors (median age, 56 years; range, 51‐71 years), and 32 family controls (median age, 58 years; range, 48‐70 years), reported similar health practices, health‐related quality of life, and social function. However, survivors reported more frequent visits to healthcare providers (P < .05), more physical impairments (P < .05), fatigue (P = .02), hypertension (P = .001), and coronary artery disease (P = .01). An increased risk of hypertension was associated with nephrectomy during childhood (odds ratio, 18.9; 95% confidence interval, 3.0‐118.8).

CONCLUSIONS:

The oldest adult survivors of childhood cancer continue to be at risk for treatment‐related complications that potentially decrease their life expectancy and compromise their quality of life. Cancer 2010. © 2010 American Cancer Society.     

Preterm delivery among female survivors of childhood,adolescent and young adulthood cancer

We studied the deliveries of female cancer survivors and female siblings in a population‐based setting in Finland. Nationwide cancer and birth registries were merged to identify 1,309 first postdiagnosis deliveries of early‐onset (diagnosed under age 35) female patients with cancer and 5,916 first deliveries of female siblings occurring in 1987–2006. Multiple logistic regression models were used to estimate risk of preterm (<37 weeks), low birth weight (<2500 g) and small‐for‐gestational‐age deliveries. The risk of preterm delivery among cancer survivors compared with siblings was overall increased [odds ratio (OR) 1.46, 95% confidence interval (CI) 1.14–1.85], the increase in risk being visible in all diagnostic age groups. Risk of low birth weight (LBW) was also significantly increased (OR 1.68; 95% CI 1.29–2.18) but not after adjustment for duration of pregnancy (OR 1.11; 95% CI 0.76–1.64). Neither was the risk of small‐for‐gestational‐age (SGA) increased. The risk of preterm delivery was most pronounced in survivors delivering 10 years or more after diagnosis. Site‐specific analyses indicated that survivors of germ cell tumors and central nervous system (CNS) tumors were at increased risk of preterm delivery, although numbers were small. In childhood survivors, kidney tumors formed the main cause of preterm delivery. Pediatric, adolescent and young adult cancer survivors are at risk for preterm delivery. Heightened surveillance is recommended especially for Wilms', germ cell and CNS tumor survivors. Such adverse pregnancy outcomes can occur a decade or more after cancer diagnosis, indicating a continued need for obstetric awareness, surveillance and counseling in former patients with cancer.     

Hospital-related morbidity among childhood cancer survivors in British Columbia, Canada: report of the childhood, adolescent, young adult cancer survivors (CAYACS) program

Our study examines inpatient, hospital-related morbidity in a geographically-defined cohort of long-term cancer survivors diagnosed before age 20 years in the province of British Columbia (BC), Canada. A total of 1374 survivors diagnosed from 1981 to 1995 surviving at least 5-years postdiagnosis, and a matched sample of 13,740 BC residents, were identified from population registers, and linked to provincial hospitalization records from 1986 to 2000. Logistic regression was used to assess relative risk and effect of sociodemographic, clinical, and temporal factors on risk. Approximately 41% of survivors vs. 17% of the population sample had at least one type of hospitalization-related late morbidity in the observation period (adjusted RR 4.1, 95% CI 3.7-4.5). Those at highest risk were survivors of leukemia (RR 4.8, 95% CI 4.0-5.8), central nervous system tumors (RR 4.8, 95% CI 4.0-5.8), bone and soft tissue sarcomas (RR 4.9, 95% CI 3.8-6.2), and kidney cancer (RR 4.9, 95% CI 3.4-7.0). Adjusted relative risk was elevated for all types of morbidity except pregnancy and birth complications, and highest for neoplasms (including second primary cancers) (RR 21.7, 95% CI 16.3-28.7). Morbidity was elevated for all combinations of primary treatment and highest for those with previous radiation, chemotherapy, and surgery (RR 7.1, 95% CI 5.5-9.0). Over time, morbidity for late effects other than neoplasms became more prevalent. These results suggest that survivors are at increased ongoing risk of many types of hospital-related late morbidity, implying that long-term monitoring for multiple health problems is warranted.     

Parental knowledge of fertility in male childhood cancer survivors

Background: In childhood, cancer survivors fertility is a major point of concern. In boys, only semen analysis and impregnation confirm fertility. Since parents constitute a major source of information for children, we investigated recall and assumptions on their child's fertility. Procedure: One hundred and fifty‐nine families with a boy surviving from cancer were asked for recall and expectations on fertility. Results: Fifty‐two percent of parents recalled statements on fertility, in 36% this was not so, 12% did not remember. There were no differences for parental gender and age at diagnosis. In case of intensive treatment parents were better informed. After relapse parents were less informed. Nine percent of the parents expected infertility, 60% was uncertain, 31% expected normal fertility. Conclusions: Based on our and literature findings we conclude that only about half of the parents recalls information on fertility. Lack of information, despite written information, is probably caused by limited oral information provision and defective memorization. One‐third of the parents assumed a normal fertility in their sons. It is highly recommended to check whether parents are adequately informed on fertility at moments they have coped the problems and emotions at initial diagnosis or at relapse, and if needed repeat the information. Copyright © 2007 John Wiley & Sons, Ltd.     

Hospitalizations among children of survivors of childhood and adolescent cancer: a population-based cohort study

Curative but potentially mutagenic cancer therapy might lead to untoward disorders and increased hospitalization among the offspring of childhood cancer survivors. Hospitalizations in childhood were evaluated in a population-based cohort of 1,920 offspring of 3,963 childhood cancer survivors, 6,394 offspring of 5,657 siblings and 9,594 population-based comparisons. The Danish Cancer Registry, Central Population Register and National Hospital Register were used to identify study subjects and hospitalizations. The probability for children in the offspring cohorts of being hospitalized before a given age was estimated using the Kaplan-Meier method. Hospitalization rate ratios (HRRs) were calculated using a Cox proportional hazards model with population comparisons as referent. Little differences in hospitalization histories were seen among offspring in the 3 cohorts. HRRs of overall hospitalization was 1.05 (95% CI, 0.98-1.12) for offspring of survivors and 1.01 (95% CI, 0.97-1.05) for offspring of siblings, neither of which was significantly different from that of population comparisons. No significant associations were seen for most of the main diagnostic groups of diseases including infections and perinatal disorders. A 6-fold excess risk of hospitalization for malignant tumors in survivors' offspring, however, could largely be explained by hereditary cancer syndromes, and part of the 2-fold excess hospitalization for benign tumors might similarly be explained by an underlying genetic susceptibility or by increased surveillance of children born to survivors. Assuming that hospitalization is an indicator of multifactorial genetic disease, the findings provide further reassurance that cancer therapies do not confer a high risk of such conditions in offspring born after treatments.     

Need for psychological follow-up among young adult survivors of childhood cancer

Follow-up is recommended for survivors of childhood cancer. Decisions about care tend to be made in terms of physical health, but psychological late effects including post-traumatic stress disorder (PTSD) and symptoms (PTSS) are prevalent. We report prevalence of PTSD/PTSS in a UK cohort, self-care and implications for organisation of follow-up. Eligible survivors (n= 218) under regular follow-up were invited to complete measures of PTSD, late effects and self-efficacy. Information about late effects was also taken from medical notes. A total of 118 survivors responded (54.1%) and 108 (49.5%) completed questionnaires. Prevalence of clinical PTSD (13.9%) was comparable with US findings. Female subjects and those who reported more late effects reported more PTSD. In regression analyses, number of survivor-reported late effects (but not number-recorded in medical notes) and PTSS predicted self-efficacy. Significant numbers of survivors report PTSS but this is unrelated to diagnosis or treatment. Female subjects and those who reported more physical late effects also reported more PTSS. Decisions to discharge survivors from routine care must consider psychological well-being as well as physical late effects. We recommend routine psychological screening for all survivors of childhood cancer and suggest this can be acceptable to survivors and feasible in clinic.     

Health status of adolescent and young adult cancer survivors

BACKGROUND:

Adolescents and young adults (AYA) ages 15 to 29 years who are diagnosed with cancer are at risk for long‐term morbidity and mortality associated with treatment of their cancer and the cancer itself. In this article, the authors describe the self‐reported health status of AYA cancer survivors.

METHODS:

The authors examined 2009 data from the Behavioral Risk Factor Surveillance System, including demographic characteristics, risk behaviors, chronic conditions, health status, and health care access, among AYA cancer survivors compared with respondents who had no history of cancer.

RESULTS:

The authors identified 4054 AYA cancer survivors and 345,592 respondents who had no history of cancer. AYA cancer survivors, compared with respondents who had no history of cancer, reported a significantly higher prevalence of current smoking (26% vs 18%); obesity (31% vs 27%); chronic conditions, including cardiovascular disease (14% vs 7%), hypertension (35% vs 29%), asthma (15% vs 8%), disability (36% vs 18%), and poor mental health (20% vs 10%) and physical health (24% vs 10%); and not receiving medical care because of cost (24% vs 15%).

CONCLUSIONS:

AYA cancer survivors commonly reported adverse behavioral, medical, and health care access characteristics that may lead to poor long‐term medical and psychosocial outcomes. Increased adherence to established follow‐up guidelines may lead to improved health among AYA cancer survivors. Cancer 2012. © 2012 American Cancer Society.     

Cardiovascular morbidity in long‐term survivors of early‐onset cancer: A population‐based study

Improvements in cancer therapy have resulted in an expanding population of early‐onset cancer survivors. In contrast to childhood and adolescent cancer survivors, there is still a lack of data concerning late morbidities among young adult (YA) cancer survivors. Thus, our aim was to investigate cardiac and vascular morbidity among early‐onset cancer survivors with a special interest in YA cancer survivors. In a population‐based setting, we explored the risk of cardiovascular disease in early‐onset cancer survivors compared to healthy siblings. Patients diagnosed with cancer below 35 years of age since 1975 were identified from the Finnish Cancer Registry, and 5‐year survivors were included in our study (N = 13,860). Information on cardiovascular morbidity was collected from the national hospital discharge registry. Compared to siblings, cancer survivors aged 0–19 and 20–34 at diagnosis had significantly elevated hazard ratios (HRs) for the studied outcomes: HR 13.5 (95% CI 8.9–20.4) and 3.6 (95% CI 2.8–4.6) for cardiomyopathy/cardiac insufficiency; HR 3.4 (95% CI 2.3–5.1) and 1.7 (95% CI 1.4–2.0) for atherosclerosis/brain vascular thrombosis; HR 3.3 (95% CI 1.7–6.5) and 1.8 (95% CI 1.5–2.1) for myocardial infarction/cardiac ischemia and HR 1.7 (95% CI 1.2–2.6) and 1.4 (95% CI 1.2–1.7) for cardiac arrhythmia. In both groups, depending on the outcome, the HR for adverse events was highest among lymphoma, brain tumor, leukemia and testicular malignancy survivors. Our results regarding late effects of childhood cancer survivors confirmed previous findings. Additionally, our study provides novel information concerning the YA cancer survivor population. Hence, our data may help in planning the risk‐based long‐term follow‐up of early‐onset cancer survivors.     

Birth outcomes among offspring of adult cancer survivors: A population‐based study

Do cancer and cancer treatment influence patients' subsequent pregnancies and outcomes for the offspring? In this study, we compared birth outcomes in 3,915 female and male survivors and 144,653 controls from the general population with similar parity, by merging data from the Cancer Registry and the Medical Birth Registry of Norway. The cancer survivors were diagnosed at age 16–45 in the period 1967–2004. Subgroups of nulliparous survivors (childless before cancer) and primiparous (one pregnancy before and one after cancer) were analyzed, using logistic regression to compare birth outcomes with controls, focusing perinatal death, congenital anomalies, preterm birth (<37 gestational weeks) and low birth weight (LBW, <2,500 g). We adjusted for maternal age, birth period and educational level. Nulliparous female survivors' offspring had increased risk of preterm birth (OR = 1.30 [95% CI 1.05–1.61]) but similar risks of LBW and perinatal death as their controls. Primiparous female survivors differed from their controls, with higher frequency of preterm birth (OR = 1.89 [95% CI 1.40–2.56]) and LBW at term (OR = 2.02 [95% CI 1.15–3.55]). A borderline significant increase of perinatal death was seen among offspring of primiparous female survivors, with OR = 1.92 (95% CI 0.98–3.76). Offspring of male survivors did not differ from their controls. For all cancer types combined, no increased risk of congenital anomalies was seen among either female or male survivors' offspring. Pregnant female cancer survivors should be offered close follow‐up, as there is an increased risk of adverse birth outcomes, in particular among those with higher parities.     

Lifestyle behaviours of young adult survivors of childhood cancer

This cross-sectional study collected baseline data on the health behaviours of a large population of survivors of childhood cancer in the UK, aged 18-30 years, compared with those of sex- and age-matched controls. Data from 178 young adult survivors of childhood cancer, diagnosed and treated at Bristol Children's Hospital, 184 peers from the survivors' GP practices and 67 siblings were collected by postal questionnaire. Conditional logistic regression analysis showed that, for matched sets of survivors and controls, survivors of a variety of childhood cancers reported lower levels of alcohol consumption (P=0.005), lower levels of cigarette smoking (P=0.027) and lower levels of recreational drug use (P=0.001) than controls. Analysis of matched sets of survivors and siblings showed similar trends but no significant differences. A health behaviour index for each participant was constructed from the data collected on five key health behaviours which influence future health status. Comparison of the means for each case group showed that survivors of childhood cancer were leading healthier lives than controls or siblings. This finding was expressed most clearly as the difference in the means of the health behaviour index for each case group, derived from five health behaviours (one-way ANOVA, P<0.001).