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Table 2 Adult/youth and child contact hours per adult per day, 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
Mean number of adult/youth contact hours per adult per day in: Other homes 3.6 (2.3–4.9) 3.2 (1.8–4.5) 0.6
Shops 2.6 (1.0–4.1) 2.5 (1.4–3.7) 1.0
Churches 3.7 (1.9–5.4) 8.6 (6.1–11) 0.002
Bars 2.0 (0.7–3.2) 5.3 (3.8–6.9) *
Schools 4.7 (3.1–6.4) 5.1 (3.5–6.7) 0.7
Clinics 1.5 (0.72–2.3) 1.7 (0.93–2.4) 0.8
Hairdressers 0.14 (0.00–0.32) 0.43 (0.040–0.81) 0.2
Work 15 (11–19) 8.0 (5.3–11) 0.004
Other 2.1 (0.62–3.6) 2.9 (1.6–4.2) 0.4
Total 35 (29–41) 38 (32–43) 0.4
Mean number of child contact hours per adult per day in: Other homes 2.7 (1.8–3.7) 1.6 (0.99–2.1) 0.03
Shops 1.4 (0.51–2.2) 1.2 (0.67–1.7) 0.7
Churches 2.5 (1.0–4.0) 6.2 (4.2–8.1) 0.004
Bars 0.22 (0.093–0.35) 0.67 (0.44–0.90) *
Schools 0.39 (0.26–0.52) 1.5 (0.63–2.4) 0.01
Clinics 1.0 (0.37–1.7) 1.1 (0.51–1.7) 0.8
Hairdressers 0.053 (0.00093–0.10) 0.23 (0.00–0.47) 0.2
Work 4.9 (3.3–6.4) 2.1 (1.2–3.1) 0.003
Other 0.52 (0.24–0.80) 1.6 (0.56–2.5) 0.1
Total 14 (11–16) 16 (13–19) 0.03
  1. p-values in bold indicate significance at the 95% level. All values are weighted, as described in the methods. * Estimates for contact hours in bars in Western Cape are considered to be unreliable (see discussion), and therefore p-values are not shown