Bryan Rodgers1, Ruth Parslow, Louisa Degenhardt. 1. National Centre for Epidemiology and Population Health, The Australian National University, Canberra ACT 0200, Australia. Bryan.Rodgers@anu.edu.au
Abstract
BACKGROUND: Non-drinkers have elevated levels of psychological distress but a recent study reported no elevation in prevalence of diagnosed disorders. We aimed to determine the prevalence of affective and anxiety disorders (from the CIDI-A) in current abstainers and contrast results with findings for psychological distress (K10) in the same sample. METHODS: Cross-sectional, representative household survey of adult Australians. RESULTS: Non-/occasional drinkers had higher levels of psychological distress than light drinkers, and distress in heavy drinkers was even higher. Heavy drinkers also had the highest rates of most disorders. Non-/occasional drinkers showed significantly elevated prevalence only of dysthymia, agoraphobia and posttraumatic stress disorder compared with light drinkers. LIMITATIONS: Statistical power was limited for investigating low prevalence disorders. History of alcohol consumption was not collected. The CIDI-A and K10 have finite validity. CONCLUSIONS: This study confirmed J-shaped relationships between psychological distress and alcohol consumption. Although affective and anxiety disorders also showed non-linear relationships with alcohol consumption, non-/occasional drinkers are not at increased risk for all disorders compared to light drinkers. The pattern of symptomatology in non-/occasional drinkers may be of a different character to that in heavy drinkers, as well as being less severe.
BACKGROUND: Non-drinkers have elevated levels of psychological distress but a recent study reported no elevation in prevalence of diagnosed disorders. We aimed to determine the prevalence of affective and anxiety disorders (from the CIDI-A) in current abstainers and contrast results with findings for psychological distress (K10) in the same sample. METHODS: Cross-sectional, representative household survey of adult Australians. RESULTS: Non-/occasional drinkers had higher levels of psychological distress than light drinkers, and distress in heavy drinkers was even higher. Heavy drinkers also had the highest rates of most disorders. Non-/occasional drinkers showed significantly elevated prevalence only of dysthymia, agoraphobia and posttraumatic stress disorder compared with light drinkers. LIMITATIONS: Statistical power was limited for investigating low prevalence disorders. History of alcohol consumption was not collected. The CIDI-A and K10 have finite validity. CONCLUSIONS: This study confirmed J-shaped relationships between psychological distress and alcohol consumption. Although affective and anxiety disorders also showed non-linear relationships with alcohol consumption, non-/occasional drinkers are not at increased risk for all disorders compared to light drinkers. The pattern of symptomatology in non-/occasional drinkers may be of a different character to that in heavy drinkers, as well as being less severe.
Authors: T Fassaert; M A S De Wit; W C Tuinebreijer; H Wouters; A P Verhoeff; A T F Beekman; J Dekker Journal: Int J Methods Psychiatr Res Date: 2009-09 Impact factor: 4.035