text: However , there was an inverse relation between time-varying abstinence ( vs. smoking ) and concurrent level of depressive symptoms , indicating that transitions from smoking to abstinence within individuals were associated with reductions in depressive symptoms .
entities.text: time-varying abstinence ( vs. smoking )
entities.type: outcome
entities.text: level of depressive symptoms
entities.type: outcome
entities.text: depressive symptoms
entities.type: outcome