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Table 1 Summary of reported building visits, by building type and country

From: Comparison of indoor contact time data in Zambia and Western Cape, South Africa suggests targeting of interventions to reduce Mycobacterium tuberculosis transmission should be informed by local data

   Western Cape Zambia p-value
Proportion of respondents who left their home 56 % (51 % - 61 %) 59 % (53 %–64 %) 0.5
Number of buildings visited yesterday (if left home) 0 0.90 % (0.23 %–3.5 %) 3.6 % (1.9 %–6.7 %) <0.0001
1 82 % (77 %–86 %) 58 % (51 %–65 %)  
2 14 % (10 %–18 %) 26 % (22 %–31 %)  
3+ 3.8 % (2.3 %–6.0 %) 12 % (9.5 %–16 %)  
Proportion of respondents who visited: Other homes 23 % (20 %–26 %) 19 % (16 %–23 %) 0.2
Shops 8.2 % (5.8 %–12 %) 19 % (16 %–22 %) <0.0001
Churches 5.2 % (3.3 %–8.1 %) 12 % (9.3 %–15 %) 0.001
Bars 2.3 % (1.4 %–3.8 %) 7.3 % (5.6 %–9.5 %) *
Schools 3.7 % (2.7 %–5.1 %) 4.1 % (3.2 %–5.2 %) 0.7
Clinics 1.6 % (1.0 %–2.5 %) 2.8 % (1.9 %–3.9 %) 0.07
Hairdressers 0.70 % (0.34 %–1.5 %) 1.5 % (0.92 %–2.3 %) 0.08
Work 16 % (13 %–19 %) 6.3 % (5.1 %–7.8 %) <0.0001
Other 3.7 % (2.5 %–5.3 %) 8.4 % (6.4 %–11 %) 0.001
Mean visit duration (hours) to: Other homes 3.5 (2.9–4.2) 2.4 (1.8–2.9) 0.009
Shops 1.2 (0.84–1.5) 0.86 (0.61–1.1) 0.1
Churches 2.7 (2.3–3.0) 2.8 (2.5–3.0) 0.8
Bars 3.6 (2.5–4.6) 3.0 (2.6–3.4)  
Schools 4.5 (3.6–5.4) 4.6 (3.8–5.5) 0.8
Clinics 3.5 (2.3–4.7) 2.4 (1.9–2.8) 0.09
Hairdressers 3.7 (1.7–5.8) 2.5 (1.4–3.6) 0.3
Work 7.1 (6.7–7.5) 7.0 (6.0–8.0) 0.9
Other 4.0 (2.6–5.3) 2.3 (1.7–2.9) 0.03
Mean number of adults/youths present per visit to: Other homes 4.0 (3.3–4.8) 5.5 (4.6–6.4) 0.01
Shops 16 (12–19) 8.4 (6.8–10) 0.0002
Churches 27 (24–29) 24 (23–25) 0.05
Bars 20 (16–23) 22 (20–24) *
Schools 24 (21–28) 25 (22–28) 0.8
Clinics 26 (23–30) 23 (20–25) 0.1
Hairdressers 3.9 (1.8–6.1) 8.1 (4.9–11) 0.04
Work 14 (12–16) 15 (12–18) 0.5
Other 17 (13–22) 13 (11–15) 0.1
Mean number of children present per visit to: Other homes 2.9 (2.4–3.4) 3.2 (2.7–3.8) 0.4
Shops 8.6 (5.8–11) 4.8 (3.7–5.9) 0.01
Churches 18 (12–24) 18 (15–20) 0.8
Bars 3.2 (1.6–4.7) 3.6 (2.9–4.3) *
Schools 3.9 (2.2–5.7) 8.4 (5.3–11) 0.01
Clinics 19 (13–24) 16 (12–19) 0.4
Hairdressers 2.0** 3.7 (2.1–5.2) 0.04
Work 4.4 (3.3–5.5) 5.1 (3.4–6.6) 0.5
Other 4.8 (2.2–7.5) 7.4 (5.2–9.6) 0.1
  1. p-values in bold indicate significance at the 95 % level. All values are weighted, as described in the methods. *Estimates for bars in Western Cape are considered to be unreliable (see discussion), and therefore p-values are not shown. ** Confidence intervals could not be calculated due to low numbers