Findings

What do systematic reviews say?

Refine by population, intervention, comparison or outcome
More filters
Evidence found and GRADE certainty

2,447 questions · 2,590 findings · 266 reviews

No studies found 699 · 27%GRADE not reported 289 · 11.2%Very low 614 · 23.7%Low 605 · 23.4%Moderate 322 · 12.4%High 61 · 2.4%

Active NRT vs placebo ‐ DRD4 (exon 3 48 bp) ‐ non‐Hispanic white

End of treatment ‐ homozygous major · people who smoke

It is very uncertain whether active NRT changes end of treatment ‐ homozygous major compared with placebo ‐ DRD4 (exon 3 48 bp) ‐ non‐Hispanic white (very low certainty).

1 finding from 1 review

Active NRT vs placebo ‐ DRD4 (exon 3 48 bp) ‐ non‐Hispanic white

End of treatment ‐ heterozygous · people who smoke

It is very uncertain whether active NRT changes end of treatment ‐ heterozygous compared with placebo ‐ DRD4 (exon 3 48 bp) ‐ non‐Hispanic white (very low certainty).

1 finding from 1 review

Active NRT vs placebo ‐ DRD4 (exon 3 48 bp) ‐ non‐Hispanic white

End of treatment ‐ homozygous minor · people who smoke

Active NRT showed no clear difference in end of treatment ‐ homozygous minor compared with placebo ‐ DRD4 (exon 3 48 bp) ‐ non‐Hispanic white (low certainty).

1 finding from 1 review

Active NRT vs placebo ‐ rs1051730 ‐ non‐Hispanic white

Abstinence at end of treatment ‐ homozygous minor · people who smoke

Active NRT may leads to higher abstinence at end of treatment ‐ homozygous minor compared with placebo ‐ rs1051730 ‐ non‐Hispanic white (low certainty).

1 finding from 1 review