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Table 3 Antiretroviral treatment adherence as assessed by different measures (pharmacy refill, self-reported questionnaire, and Visual Analogue Scale) and the composite adherence score at month 6 and 12 after ART initiation

From: Using a composite adherence tool to assess ART response and risk factors of poor adherence in pregnant and breastfeeding HIV-positive Cameroonian women at 6 and 12 months after initiating option B+

Adherence variable Adherence score Adherence month 6 Adherence month 12
N = 217 N = 185
Pharmacy refill High 183 (84.3) 150 (81.1)
Moderate 17 (7.8) 12 (6.5)
Low 17 (7.8) 23 (12.4)
Self-reported questionnaire High 159 (69.1) 143 (77.3)
Moderate 43 (19.8) 31 (16.8)
Low 15 (6.9) 11 (5.9)
Visual Analogue Scale (VAS) High 150 (69.1) 135 (73.0)
Moderate 39 (18.0) 25 (13.5)
Low 28 (12.9) 25 (13.5)
Composite adherence score (CAS) High 128 (59.0) 116 (62.7)
Moderate 68 (31.4) 46 (24.9)
Low 21 (9.6) 23 (12.4)
  1. Data are in numbers and percentages [n (%)]