Meta-regression of follow-up period on relative risk, smoking cessation (follow-up

<p>Meta-regression of follow-up period on relative risk, smoking cessation (follow-up </p

Flow diagram of study selection and exclusion.

<p>Flow diagram of study selection and exclusion.</p

Meta-analysis of financial incentives for smoking cessation (follow-up ≤six months).

<p>Meta-analysis of financial incentives for smoking cessation (follow-up ≤six months).</p

Meta-regression of incentive value on relative risk, attendance at vaccination & screening.

<p>Meta-regression of incentive value on relative risk, attendance at vaccination & screening.</p

Meta-regression of follow-up period on relative risk, smoking cessation (follow-up >six months).

<p>Meta-regression of follow-up period on relative risk, smoking cessation (follow-up >six months).</p

Meta-regression of follow-up point on relative risk, all behaviours (latest follow-up point).

<p>Meta-regression of follow-up point on relative risk, all behaviours (latest follow-up point).</p

Meta-analysis of financial incentives for attendance at vaccination and screening.

<p>Meta-analysis of financial incentives for attendance at vaccination and screening.</p

Contour enhanced funnel plot, smoking cessation (follow-up >six months).

<p>Contour enhanced funnel plot, smoking cessation (follow-up >six months).</p

Meta-analysis of financial incentives for all behaviours (latest follow-up point).

<p>Meta-analysis of financial incentives for all behaviours (latest follow-up point).</p

Contour enhanced funnel plot, all behaviours (latest follow-up point).

<p>Contour enhanced funnel plot, all behaviours (latest follow-up point).</p