Table 3

Generalised linear models predicting acceptability of self-testing for trichomoniasis*

OutcomeBaselineAfter self-testingAfter discussion
β coefficient (95% CI)p Valueβ coefficient (95% CI)p Valueβ coefficient (95% CI)p Value
Overall acceptability
 Age0.008
  ≥180.08 (0.02 to 0.15)
  >18Reference
 Tampon use0.0030.041
  Successful0.1 (0.03 to 0.17)0.07 (0 to 0.14)
  UnsuccessfulReferenceReference
 Willing to test at home<0.001<0.001<0.001
  Yes0.39 (0.27 to 0.51)0.32 (0.19 to 0.45)0.34 (0.15 to 0.54)
  Undecided0.23 (0.1 to 0.36)0.08 (−0.06 to 0.23)−0.09 (−0.29 to 0.12)
  NoReferenceReferenceReference
Trust of test results
 Willing to test at home0.0440.003
  Yes0.26 (0.02 to 0.5)−0.05 (−0.41 to 0.31)
  Undecided0.13 (−0.13 to 0.4)−0.37 (−0.74 to 0.01)
  NoReferenceReference
 Concordance0.008
  Yes0.51 (0.14 to 0.89)
  NoReference
Confidence: ability to collect
 Willing to test at home0.0110.0010.003
  Yes0.26 (0.05 to 0.48)0.26 (0.07 to 0.45)0.45 (0.16 to 0.73)
  Undecided0.12 (−0.12 to 0.35)0.06 (−0.14 to 0.27)Reference
  NoReferenceReference
Comfort of testing
 Tampon use<0.001
  Successful0.23 (0.13 to 0.33)
  UnsuccessfulReference
 Vaginal medication0.004
  Yes0.15 (0.05 to 0.25)
  NoReference
 Willing to test at home<0.001<0.001<0.001
  Yes0.39 (0.21 to 0.58)0.34 (0.14 to 0.54)0.6 (0.37 to 0.84)
  Undecided0.32 (0.12 to 0.52)0.08 (−0.14 to 0.3)Reference
  NoReferenceReference
Perceived effects of testing
 Willing to test at home<0.001<0.001<0.001
  Yes0.55 (0.39 to 0.71)0.39 (0.24 to 0.55)0.52 (0.32 to 0.72)
  Undecided0.25 (0.07 to 0.42)0.09 (−0.09 to 0.27)−0.05 (−0.16 to 0.26)
  NoReferenceReferenceReference
  • * Separate models are presented at three time points for five outcome variables: overall acceptability and subscales measuring trust, confidence, comfort and perceived effects of testing (15 models in total). Only significant variables are shown.

  • Ever prescribed a vaginal medication.

  • Concordance between self-test results and clinician-test results.