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Understanding the differential effect of alcohol consumption on the relation between socio‐economic position and alcohol‐related health problems: results from the Stockholm Public Health Cohort

2020; Wiley; Volume: 116; Issue: 4 Linguagem: Inglês

10.1111/add.15213

1360-0443

Emelie Thern, Jonas Landberg,

Health disparities and outcomes

To test (i) whether the harmful effects of average volume of alcohol consumption (AC) and heavy episodic drinking (HED) differ by socio-economic position (SEP), and (ii) if so, to what extent such differential effects can be attributed to an unequal distribution of harmful levels and patterns of drinking, health, life-style and social factors.A longitudinal cohort study with baseline in 2002 or 2006, with record-linkage to national registers.Stockholm County, Sweden.A total of 37 484 individuals, aged 25-70 years, responding to the survey in 2002 or 2006.The outcome of alcohol-related health problems was obtained from the National Patient Register and Cause of Death Register using the Swedish index diagnoses related to alcohol use. Self-reported information on occupational class (measure of SEP), AC, HED as well as other health-related factors were extracted from the surveys. Average follow-up time was 13.3 years.During follow-up, a total of 1237 first-time events of alcohol-related health problems occurred. After initial adjustments, heavy drinking appeared to be more harmful to individuals with low SEP compared with high SEP (P = 0.001). Differences in HED frequency explained the largest part of the differential effect of AC. Engaging in weekly HED was more harmful to individuals with low SEP (P = 0.031) than high SEP. Differences in AC, together with other factors, explained a large part of the differential effect of HED. Conclusions The greater adverse impact of alcohol consumption on health in Sweden on people with lower socio-economic position may be largely attributable to higher prevalence of heavy episodic drinking, as well as other behavioral and social risk factors.