<p>Data.</p>

In continuous analyses, each 1-g/day increase in omega-3 PUFA intake was associated with lower odds of lung cancer (OR = 0.82, 95% CI: 0.70–0.96). In tertile-based analyses, participants in the highest versus lowest intake tertiles had lower odds of lung cancer across all three PUFA types (omega-3 PUFAs: OR = 0.50, 95% CI: 0.32–0.78; omega-6 PUFAs: OR = 0.50, 95% CI: 0.31–0.80; total PUFAs: OR = 0.48, 95% CI: 0.30–0.79).

Favorable sleep patterns were also associated with lower odds of lung cancer compared with unfavorable sleep patterns (OR = 0.59, 95% CI: 0.40–0.87). Although lower stratum-specific ORs were observed in the higher omega-3 PUFA intake stratum, the multiplicative interaction tests were not statistically significant.</p> <p>Conclusion</p><p>Higher dietary omega-3 PUFA intake and favorable sleep patterns were each associated with lower odds of lung cancer in this matched case-control study.

Associations for omega-6 and total PUFA intake were observed in tertile-based analyses but were not consistent across modeling approaches. These observational findings require confirmation in prospective studies.</p></div>