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Table 1 Characteristics of community and workplace HTC users aged 15–49 years, Trident project area, 2012–2015

From: Experience and lessons from health impact assessment guiding prevention and control of HIV/AIDS in a copper mine project, northwestern Zambia

Year

2012

2013

2014

2015

Community (n)

1003

2818

1853

5964

 Males (n; %)

365 (36.4)

1028 (36.5)

774 (41.8)

2261 (37.9)

 Females (n; %)

638 (63.6)

1790 (63.5)

1079 (58.2)

3703 (62.1)

 Average age in years ± SD

25.1 ± 7.9

26.3 ± 8.4

26.3 ± 7.8

26.2 ± 8.3

 15–24 years old (n; %)

567 (56.5)

1457 (51.7)

902 (48.7)

3089 (51.8)

 25–34 years old (n; %)

295 (29.4)

835 (29.6)

636 (34.3)

1775 (29.8)

 35–49 years old (n; %)

141 (14.1)

526 (18.7)

315 (17.0)

1100 (18.4)

 Married or in long-term relationship (%; 95% CI)

57.9 (54.8–61.0)

61.3 (59.4–63.1)

63.6 (61.3–65.8)

66.6 (65.4–67.8)

 First-time tester (%; 95% CI)

33.5 (30.5–36.5)

32.7 (31.0–34.5)

24.8 (22.8–26.9)

25.5 (24.4–26.7)

 Repeat tester (%; 95% CI)

66.5 (63.5–69.5)

67.3 (65.5–69.0)

75.2 (73.1–77.2)

74.5 (73.3–75.6)

 Average overall HIV positivity rate (%; 95% CI)1

3.0 (2.0–4.2)

3.3 (2.6–3.9)

3.4 (2.5–4.2)

3.4 (2.9–3.9)

Workforce (n)

-

1011

1852

2701

 Males (n; %)

-

980 (96.9)

1753 (94.7)

2555 (94.6)

 Females (n; %)

-

31 (3.1)

99 (5.4)

146 (5.4)

 Average age in years ± SD

-

30.9 ± 7.3

30.7 ± 6.7

31.7 ± 6.8

 15–24 years old (n; %)

-

213 (21.1)

352 (19.0)

396 (14.7)

 25–34 years old (n; %)

-

487 (48.2)

995 (53.7)

1413 (52.3)

 35–49 years old (n; %)

-

311 (30.8)

505 (27.3)

892 (33.0)

 Married or in long-term relationship (%; 95% CI)

-

77.9 (75.3–80.5)

77.4 (75.4–79.3)

89.0 (87.7–90.1)

 First-time tester (%; 95% CI)

-

39.2 (36.2–42.3)

41.4 (39.1–43.8)

11.8 (10.5–13.1)

 Repeat tester (%; 95% CI)

-

60.8 (57.7–63.8)

58.6 (56.2–60.9)

88.2 (86.9–89.5)

 Average overall HIV positivity rate (%; 95% CI)1

-

5.2 (4.0–6.8)

3.5 (2.7–4.5)

4.4 (3.6–5.2)

  1. CI, confidence interval; SD standard deviation; −, no data available
  2. 1Samples of individual years are non-independent due to repeat testers (although not all repeat testers necessarily tested more than once in the HTC offered by FQML) leading to a too narrow CI estimate