Changes in haemoglobin levels according to changes in body mass index and smoking habits, a 20-year follow-up of a male cohort

摘要: Haemoglobin level declines with increasing age in cross sectional studies. Little is known about the longitudinal changes of haemoglobin. Because both high or low haemoglobin levels increase mortality and morbidity we examined how lifestyle factors like body mass index (BMI) smoking habits influence cohort level. In all, 4159 men aged 20–49 years at baseline were 1974 1994–1995 a longitudinal, population-based study from municipality Tromso, Northern Norway. Mean was 148 g/l. There no difference mean after 20 any strata age. BMI increased 2.1 kg/m2. The prevalence smokers decreased 20.1 percentage points. multiple regression analysis associated change. Smoking cessation lowered 1.6 g/l compared to never smokers. 0.8 quitters whose >2.5 kg/m2 decrease 6.7 weight reducers. positive dose–response relationship between cigarettes smoked per day change among consistent conclusion, contrast studies, did not during ageing relatively young men. This could be explained by higher less smoking. affected such an extent that reduction due counteracted. Prospective studies are needed address health implications.