Table 2.
Balance diagnostics using SMD before and after IPTW-PS.
| Characteristics | Before IPTW-PS | After IPTW-PS | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Exposed group | Comparison group | Exposed group | Comparison group | |||||||
| Mean | SD | Mean | SD | SMD | Mean | SD | Mean | SD | SMD | |
| District of residence | 1.63 | 0.90 | 1.62 | 0.90 | 0.011 | 1.62 | 0.91 | 1.62 | 0.90 | 0.003 |
| Study site | 1.06 | 0.61 | 0.96 | 0.62 | 0.168 | 1.01 | 0.61 | 1.01 | 0.62 | 0.002 |
| Level of health facility | 1.30 | 0.46 | 1.35 | 0.48 | −0.107 | 1.32 | 0.47 | 1.32 | 0.47 | −0.005 |
| Age categories (yr) | 3.23 | 0.87 | 3.37 | 0.83 | −0.162 | 3.30 | 0.87 | 3.30 | 0.81 | <0.001 |
| Age (yr) | 3.43 | 0.26 | 3.48 | 0.25 | −0.178 | 3.46 | 0.26 | 3.45 | 0.24 | 0.001 |
| Sex | 1.33 | 0.47 | 1.34 | 0.47 | −0.016 | 1.33 | 0.47 | 1.33 | 0.47 | −0.002 |
| Point of entry into HIV care | 3.05 | 1.42 | 2.96 | 1.47 | 0.058 | 3.01 | 1.40 | 3.01 | 1.48 | <0.001 |
| Baseline regimen | 1.97 | 0.77 | 1.91 | 0.53 | 0.085 | 1.94 | 0.77 | 1.94 | 0.52 | 0.001 |
| Baseline weight | 4.12 | 0.23 | 4.12 | 0.25 | −0.014 | 4.12 | 0.23 | 4.12 | 0.24 | −0.003 |
HIV = human immunodeficiency virus, IPTW-PS = inverse probability of treatment weighting using propensity scores, SD = standard deviation, SMD = standardized mean difference.