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. 2017 Feb 20;17:18. doi: 10.1186/s12911-017-0413-9

Table 1.

Characteristics of patients included in the retrospective full cohort

Variable Exposed (n = 1771) Unexposed (n = 316) Unknown (n = 168) P-value for all P-value for Exposed vs. Unexposed
Age in years (IQR) 37.7 (32.4–43.9) 38.9 (33.1–46.6) 37.7 (31.7–42.9) 0.015 0.006
Female 1,253 (70.8%) 203 (64.2%) 117 (69.6%) 0.068 0.020
ART duration in years (IQR) 2.4 (1.5–3.3) 2.5 (1.6–3.5) 2.5 (1.2–3.4) 0.270 0.120
Prescription length in days (IQR) 180 (65–180) 180 (66–180) 90 (36–180) <0.001 0.846
Patients (%) with… <0.001 0.710
1-month prescriptions 227 (12.8%) 43 (13.6%) 48 (28.6%)
2-month prescriptions 282 (15.9%) 48 (15.2%) 24 (14.3%)
3-month prescriptions 234 (13.2%) 35 (11.1%) 18 (10.7%)
6-month prescriptions 1028 (58.0%) 190 (60.1%) 78 (46.4%)
First line regimen 1,675 (94.6%) 295 (93.4%) 151 (89.9%) 0.041 0.383
Fixed dose combination 28 (1.6%) 5 (1.6%) 9 (5.4%) 0.002 0.999
No pre-program observation time 93 (5.3%) 22 (7.0%) 25 (14.9%) <0.001 0.220
Transfer out during observation 61 (3.4%) 8 (2.5%) 9 (5.4%) 0.269 0.507

IQR interquartile range

Values reflect data collection on November 4, 2012 (for age and ART duration) or as of first statistical observation (for all others). Bold indicates statistical significance (P < =0.05)