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Table 2 Measuring glycerin as a marker for the presence of vaginal film

From: Development and clinical assessment of new objective adherence markers for four microbicide delivery systems used in HIV prevention studies

Swab extract Glycerin (mM)
Vaginal swab only 0.00
Vaginal swab + 1:5 filma 1.54
Vaginal swab + 1:25 filma 0.36
Vaginal swab + 1:100 filma 0.07
Vaginal swab + 1:5 semena 0.00
Vaginal swab + 1:10 semena 0.00
  1. aSwabs were briefly dipped into various dilutions of film and semen