9 research outputs found

    Number of deaths and excess hazard ratio (EHR) in ‰ compared to November (95% confidence interval) in the age-span >30: crude model, adjusted for sex and education, male (adjusted for education) and female (adjusted for education) and with p-value for type 3-test.

    No full text
    <p>Number of deaths and excess hazard ratio (EHR) in ‰ compared to November (95% confidence interval) in the age-span >30: crude model, adjusted for sex and education, male (adjusted for education) and female (adjusted for education) and with p-value for type 3-test.</p

    Month of Birth and Mortality in Sweden: A Nation-Wide Population-Based Cohort Study

    Get PDF
    <div><h3>Background</h3><p>Month of birth – an indicator for a variety of prenatal and early postnatal exposures – has been associated with life expectancy in adulthood. On the northern hemisphere, people born in the autumn live longer than those born during the spring. Only one study has followed a population longitudinally and no study has investigated the relation between month of birth and mortality risk below 50 years.</p> <h3>Methods and results</h3><p>In this nation-wide Swedish study, we included 6,194,745 subjects, using data from population-based health and administrative registries. The relation between month of birth (January – December) and mortality risk was assessed by fitting Cox proportional hazard regression models using attained age as the underlying time scale. Analyses were made for ages >30, >30 to 50, >50 to 80 and >80 years. Month of birth was a significant predictor of mortality in the age-spans >30, >50 to 80, and >80 years. In models adjusted for gender and education for ages >30 and >50 to 80 years, the lowest mortality was seen for people born in November and the highest mortality in those born in the spring/summer, peaking in May for mortality >30 years (25‰ excess hazard ratio compared to November, [95% confidence interval = 16–34 ]) and in April for mortality >50 to 80 years (42‰ excess hazard ratio compared to November, [95% confidence interval = 30–55]). In the ages >80 years the pattern was similar but the differences in mortality between birth months were smaller. For mortality within the age-span >30 to 50 years, results were inconclusive.</p> <h3>Conclusion</h3><p>Month of birth is associated to risk of mortality in ages above 50 years in Sweden. Further studies should aim at clarifying the mechanisms behind this association.</p> </div

    Number of deaths and excess hazard ratio (EHR) in ‰ compared to November (95% confidence interval) in the age-spans >30 to 50, >50 to 80 and >80 years: crude models and adjusted for sex and education with p-value for type 3-test.

    No full text
    <p>Number of deaths and excess hazard ratio (EHR) in ‰ compared to November (95% confidence interval) in the age-spans >30 to 50, >50 to 80 and >80 years: crude models and adjusted for sex and education with p-value for type 3-test.</p

    Number of subjects and proportion of the population that died during the study time by age-span, sex and education group.

    No full text
    <p>Number of subjects and proportion of the population that died during the study time by age-span, sex and education group.</p

    Odds ratios for hypertension, impaired glucose tolerance, diabetes, overweight (BMI>25 kg/m2) and obesity (BMI>30kg/m2) in 40-year-old men and women exposed to famine in early childhood, fetal-infant life, or unexposed.

    No full text
    <p>SBP = systolic blood pressure, DBP = diastolic blood pressure, HT = hypertension, IGT = impaired glucose tolerance.</p><p>*SBP≥160 and DBP≥100 mmHg.</p

    Subject characteristics.

    No full text
    <p>Data are mean (SD) or number (%) of subjects. p-values for ANOVA or chi-squared test across groups. Data from transitional period (February 1970–December 1970) not included in the analyses. BMI = body mass index.</p
    corecore