Lubrication v no lubrication for vaginal speculums in Papanicolaou smears†

OutcomeLubricationNo lubricationRRR (95% CI)NNT
†Abbreviations defined in glossary; RRR, NNT, and CI calculated from data in article.
Unsatisfactory Papanicolaou smear2.1%2.2%4.3% (−43 to 83)Not significant