biostudies-literatureUnknown25(1)Zhang Y<h4>Background</h4>It remains unclear whether all physical activity (PA) domains (occupational PA [OPA], transportation PA [TPA], and leisure-time PA [LTPA]) have equivalent beneficial effects. We aimed to investigate the associations of OPA, TPA, and LTPA with suicidal ideation in adults.<h4>Methods</h4>We included and analyzed 25,497 participants (aged ≥ 18 years) from the National Health and Nutrition Examination Survey (NHANES) 2007-2018. The domain-specific PA was assessed by a self-report questionnaire and categorized based on the PA guidelines. Suicidal ideation was measured by item nine of the nine-item Patient Health Questionnaire.<h4>Results</h4>Participants achieving PA guidelines (≥ 150 min/week) had a 21% (odds ratio [OR] 0.79, 95% confidence interval [CI] 0.63-0.98) and 32% (BMC public health2573https://www.ebi.ac.uk/biostudies/studies/S-EPMC12305946biostudies-literatureDomain-specific physical activity and risk of suicidal ideation in adults: a population-based study.PMC12305946Zhao MFu FMa LZhang YXu TZhan ZCheng ZfalseDomain-specific physical activity and risk of suicidal ideation in adults: a population-based study.<h4>Background</h4>It remains unclear whether all physical activity (PA) domains (occupational PA [OPA], transportation PA [TPA], and leisure-time PA [LTPA]) have equivalent beneficial effects. We aimed to investigate the associations of OPA, TPA, and LTPA with suicidal ideation in adults.<h4>Methods</h4>We included and analyzed 25,497 participants (aged ≥ 18 years) from the National Health and Nutrition Examination Survey (NHANES) 2007-2018. The domain-specific PA was assessed by a self-report questionnaire and categorized based on the PA guidelines. Suicidal ideation was measured by item nine of the nine-item Patient Health Questionnaire.<h4>Results</h4>Participants achieving PA guidelines (≥ 150 min/week) had a 21% (odds ratio [OR] 0.79, 95% confidence interval [CI] 0.63-0.98) and 32% (2025-01-01T00:00:00Z2025 Jul2026-03-16T06:28:16.254Z2025-08-14T03:06:26.822ZS-EPMC123059464073139810.1186/s12889-025-23815-9