Table 2

Letter plus chart reminder v letter alone*

OutcomeLetterand chart reminder EERLetter alone CERRBI (95% CI)ABI |EER-CER|NNT (CI)
*Abbreviations defined in glossary; RBI, ABI, NNT, and CI calculated from data in article.
Had mammogram30.9%26.5%16.8% (3 to 33)4.4%23(12 to 129)
Had Pap smear22.8%19.4%17.8% (0.8 to 38)3.4%29(15 to 585)