Lubrication v no lubrication for vaginal speculums in Papanicolaou smears†
Outcome
Lubrication
No lubrication
RRR (95% CI)
NNT
†Abbreviations defined in glossary; RRR, NNT, and CI calculated from data in article.
Unsatisfactory Papanicolaou smear
2.1%
2.2%
4.3% (−43 to 83)
Not significant