Highlight
– In a nationally representative longitudinal cohort (PATH Study), within-person change from current to former cigarette smoking was associated with 30% higher odds of sustained recovery from other substance use disorders (SUDs) year to year (OR 1.30; 95% CI, 1.07–1.57).
– The association persisted after a one-year lag (OR 1.43; 95% CI, 1.00–2.05) and in a second cohort (2016/2018–2022/2023) (OR 1.37; 95% CI, 1.13–1.66), suggesting temporal robustness.