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Table 3 Measuring sorbitol as a marker for presence of vaginal insert

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

Swab extract

Sorbitol (µM)

Swab only

1.9

Vaginal swab #1

41.8

Vaginal swab #2

35.3

Vaginal swab #1 + 50 µl inserta

660.9

Vaginal swab #2 + 50 µl inserta

294.7

Vaginal swab #3 + 100 µl inserta

1304.0

Semen—1:5

23.0

Semen—1:10

12.4

Semen—1:20

7.1

Semen 1:5 + 50 µl inserta

313.7

  1. aOne insert was dissolved in 1 ml of water before adding 50 or 100 µl to the vaginal swab