Biology subjects

Ansari, M.

Publications and source records attributed to Ansari, M..

2 recordsLinked to original sources

bioRxiv2019

Temporal trends in incidence of childhood cancer in Switzerland, 1985-2014

STRUCTURED ABSTRACTO_ST_ABSBackgroundC_ST_ABSIncidence of childhood cancer increased in most countries worldwide, but the reasons are unclear. This study investigates trends in childhood cancer incidence in Switzerland from 1985 to 2014.\n\nMethodsWe extracted data on all childhood cancer cases diagnosed at ages 0-14 years in Switzerland from the Swiss Childhood Cancer Registry. We included ICCC-3 main groups I-XII and calculated age-standardised, cumulative, and age-specific incidence for different diagnostic groups. We analysed trends in annual age-standardised incidence using JoinPoint regression models.\n\nResultsOver the study period from 1985-2014, 5104 of 5486 cancer diagnoses (93%) were microscopically verified. The proportion of children treated in paediatric cancer centres increased from 84% during 1985-1994 to 93% in 1995-2004 and 98% in 2005-2014 (p<0.001). Using the 2010 European standard population, age-standardised incidence was 143 in 1985-1994, 154 in 1995-2004, and 162 per million in 2005-2014. Over the period 1985-2014, incidence for all cancers increased by 0.7% (95% confidence interval [CI] 0.5-1.0) per year, 0.8% (95% CI 0.2%-1.4%) for leukaemias, 3.8% (95% CI 1.7%-6.0%) for epithelial neoplasms and melanomas, and 3.0% (95% CI 1.3%-4.6%) for CNS tumours for the period 1985-2002.\n\nConclusionTrends in incidence were driven mostly by increases among leukaemias and CNS tumours. For CNS tumours, observed trends may be explained at least partially by diagnostic changes and improved registration. For leukaemias, rising incidence may be real and at least partly due to changes in risk factors.\n\nHighlightsO_LIIn Switzerland, incidence of childhood cancer increased by 18% from 1985-2014.\nC_LIO_LIIncrease in incidence was mainly caused by brain tumours and leukaemias.\nC_LIO_LIImproved registration and diagnostics may have increased brain tumour incidence.\nC_LIO_LIIncreasing trend for leukaemias may be real, but reasons remain elusive.\nC_LI

epidemiology↗

bioRxiv2019

Dietary intake and diet quality of Swiss adult survivors of childhood cancer compared to the general population

BackgroundChildhood cancer survivors (CCSs) are at increased risk of developing chronic health conditions, which may be reduced by following a healthy lifestyle including a good diet. ObjectivesThis study compared the dietary intake and quality of CCSs and the general population. DesignAs part of the Swiss Childhood Cancer Survivor Study, we sent a food frequency questionnaire (FFQ) to CCSs who had a median age of 34 years (IQR: 29-40 years) and a median of 26 years (20-31 years) postdiagnosis at the time of survey. We compared dietary intake and quality of CCSs and three comparison groups representing the general adult population using FFQ and 24h recall data (24HDR). We evaluated whether mean individual intake met national dietary recommendations and used the Alternative Healthy Eating Index (AHEI) to estimate diet quality. ResultsThe 774 CCSs in our study were compared to 8964 participants in the Bus Sante study, 1276 participants in the CoLaus study, and 1134 participants in the Swiss National Nutrition Survey. Dietary intake was equally poor in CCSs and the general Swiss population. CCSs consumed inadequate amounts of vitamin D, fiber, carbohydrates, iron, vitamin A, and calcium (12%, 41%, 72%, 72%, 79%, and 89% of the recommended intakes, respectively), and excessive amounts of saturated fat, protein, cholesterol, and total fat (137%, 126%, 114%, and 107% of the recommended intakes). The mean AHEI score in CCSs was low at 48.0 (men: 45.0, women: 50.9) out of a maximum score of 100. The general population, assessed by 24HDR, scored lower overall than CCSs (41.5; men: 38.7, women: 43.8). Clinical characteristics were not associated with diet quality in CCSs. ConclusionLong-term CCSs and the general adult population have similarly poor dietary intake and quality in Switzerland, which suggests population-based interventions for everyone.

epidemiology↗