Characteristics of physician and midwife participants and non-participants in the STD I-CE course.^*

*Numbers may not add to total because of missing data. **Of the 561 total number of course non participants (private physicians and midwives who did not agree to participate) information was available only on 527 of them. †Many physicians and some midwives practiced in more than one sector. ††PREVEN Network members were physicians and midwives who joined the PREVEN Network after completing a course and passing a test on STD and contraceptive management approximately a year prior to this study.