Table 3 Incidence rate ratios time from testing to ART and incident rates of children living with HIV in Zambia from 2004 to 2017
Characteristic | Number initiating ART | Median time from Test to ART in days (IQR) | Rates of ART initiation 100 per month | Person time in years | Unadjusted test to ART IRR (CI)* | Adjusted from test to ART IRR (CI)* |
|---|---|---|---|---|---|---|
Sex | ||||||
Male | 33,211 | 10 (1–77) | 14 | 18,909 | 1 | 1 |
Female | 35,419 | 8 (1–77) | 13.6 | 20,943 | 0.95 (0.93–0.96) | 0.94 (0.93–0.95) |
Years | ||||||
2004–2006 | 6217 | 17 (1–161) | 7 | 9052 | 1 | 1 |
2007–2009 | 16,940 | 11 (1–111) | 10 | 14,972 | 1.36 (1.32 –1.39) | 1.34 (1.31–1.38) |
2010–2012 | 19,780 | 10 (1–90) | 15 | 10,823 | 1.98 (1.92 –2.02) | 2.02(1.96 –2.07) |
2013–2015 | 18,768 | 9 (1–50) | 33 | 3777 | 4.55 (4.43–4.67) | 4.62 (4.50 –4.74) |
2016–2017 | 6925 | 1 (1–14) | 106 | 421 | 14.5 (13.9–14.9) | 15.2 (14.7–15.7) |
Age group at test | ||||||
Birth to 17 months | 12,141 | 1 (1–55) | 16 | 6278 | 1 | 1 |
18 months to 4 years | 18,953 | 8 (1–73) | 14 | 10,860 | 0.91 (0.88 –0.92) | 0.92 (0.90–0.94) |
5–9 years | 18,476 | 14 (1–112) | 12 | 12,730 | 0.76 (0.74–0.77) | 0.78 (0.76–0.80) |
10–15 years | 17,215 | 13 (1–77) | 14 | 9898 | 0.86 (0.84–0.87) | 0.86 (0.84 –0.88) |
Health facility type | ||||||
Hospital | 31,776 | 7 (1–87) | 12 | 20,878 | 1 | 1 |
Health centre | 36,177 | 13 (1–69) | 16 | 18,352 | 1.26 (1–1.27) | 0.99 (0.97–1.01) |
Hospice | 473 | 28 (1–357) | 10 | 502 | 0.64 (0.58– 0.70) | 0.42 (0.38–0.46) |
Health post | 133 | 1 (1–37) | 14 | 118 | 1.14 (0.99 –1.31) | 0.69 (0.60–0.80) |
Province | ||||||
Central | 5174 | 1 (1–42) | 21 | 1977 | 1 | 1 |
Luapula | 2677 | 1 (1–13) | 24 | 880 | 1.22 (1.16 –1.27) | 1.06 (1.01–1.11) |
Copperbelt | 15,423 | 1 (1–46) | 14 | 8865 | 0.67 (0.65 –0.70) | 0.59 (0.57–0.61) |
Eastern | 6758 | 14 (1–115) | 11 | 4734 | 0.55 (0.53–0.57) | 0.45 (0.44–0.47) |
Lusaka | 17,886 | 19 (1–84) | 12 | 11,114 | 0.62 (0.60 –0.63) | 0.62 (0.61–0.64) |
Muchinga | 1340 | 1 (1–18) | 18 | 599 | 0.89 (0.84 –0.94) | 0.80 (0.76–0.85) |
North-western | 2599 | 3 (1–58) | 15 | 1354 | 0.73 (0.69 – 0.76) | 0.61 (0.58–0.64) |
Northern | 2681 | 1 (1–17) | 19 | 1129 | 0.93 (0.89 – 0.97) | 0.69 (0.66–0.72) |
Southern | 9424 | 18 (1–136) | 11 | 6684 | 0.57 (0.55 – 0.58) | 0.54 (0.52–0.56) |
Western | 4668 | 16 (1–91) | 14 | 2513 | 0.72 (0.69 – 0.74) | 0.57 (0.54–0.59) |