Supplementary Material for: When the Burden Gets Overwhelming: Testing an Inverse U-Shaped Relation between Work-Family Conflicts and Alcohol Use

2020-05-20T14:53:56Z (GMT) by Kuntsche S. Kuntsche E.
Background: Combining work and family demands often results in conflicts increasing alcohol use. However, extreme levels of conflict may be associated with low volumes consumed. This study tests such an inverse u-shaped relationship and whether this is influenced by the source from which the conflicts mainly arise (family duties and/or work obligations). Methods: Regression models including linear and quadratic terms were estimated based on a sample of 305 employed parents (mean age = 38.7; 52.1% mothers) in French-speaking Switzerland. Results: No significant gender differences were found for the total level of conflict, but men reported significantly more work conflicts influencing family life than women. A significant positive linear (B = 2.10, SE = 0.72) and negative quadratic (B = −0.60, SE = 0.26) effect was found indicating that parents with low and those with high level of conflict report drinking less alcohol than those with a medium level of conflict. This relation was independent from the underlying sources of conflict and persisted when adjusting for gender, level of employment, number of children, or age of the youngest child. Conclusion: This study extends existing knowledge by demonstrating that the relationship between work-family conflicts (WFC) and alcohol use is more complex than previously assumed. To explain the inverse u-shaped relation, future studies should test two major processes: (a) holding multiple roles may cause more conflicts but will also limit the opportunities to engage in alcohol use, (b) those facing high level of WFC are a particular risk group experiencing detrimental health outcomes other than hazardous drinking, and (c) a combination of both.

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