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Table 2 Odds ratios describing the association between HTR status and optimal ART adherence, categorized by subgroups

From: How does hard-to-reach status affect antiretroviral therapy adherence in the HIV-infected population? Results from a meta-analysis of observational studies

Subgroup Number of measures of correlation OR 95% CI Tests for heterogeneity Tests for interaction
P Value (Q Statistic) I2 (%) OR 95% CI P value
Study design
 Cohort 18 0.54 0.45 0.65 0.00 58.3 0.98 0.77 1.25 0.88
 Cross-sectional 14 0.55 0.47 0.64 0.00 31.4
Adherence threshold/cut-off point (%)
 100 13 0.56 0.46 0.67 0.00 52.1
  ≥ 95 12 0.52 0.42 0.66 0.00 54.1
  < 95 7 0.55 0.43 0.71 0.00 47.9
Adherence measure
 Self-reporting 22 0.56 0.49 0.64 0.00 42.2
 Pharmacy refill 9 0.47 0.35 0.64 0.00 64.1
 Self-reporting & pill count 1 0.72 0.53 0.97 0.03
Region/country
 USA 16 0.58 0.50 0.68 0.00 38.5
 Canada 9 0.44 0.34 0.58 0.00 51.7
 Others 7 0.60 0.47 0.78 0.00 58.5
Observational period
 ≥ 6 months 11 0.44 0.35 0.56 0.00 44.3 0.72 0.55 0.94 0.02
 < 6 months 21 0.61 0.53 0.69 0.00 41.5
Quality assessment results
 High 18 0.57 0.48 0.67 0.00 53.2 1.1 0.85 1.42 0.48
 Moderate 14 0.52 0.44 0.65 0.00 41.3
  1. The number of studies was 29, but the number of measures of correlation was 32