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. 2021 Oct 5;149:e219. doi: 10.1017/S0950268821002223

Table 2.

Pairwise comparisons of SARs for seven contact environments

A
Hou 5.01 (2.30–10.91)* 2.48 (1.35–4.57)* 9.71 (4.70–20.05)* 4.93 (1.59–15.25)* 5.73 (2.49–13.20)* 7.78 (3.49–17.31)*
7.83 (0.98–62.26) Pub 0.50 (0.22–1.14) 1.94 (0.76–4.92) 0.98 (0.28–3.47) 1.14 (0.42–3.09) 1.55 (0.61–3.94)
0.29 (0.03–2.43) 0.46 (0.11–1.86) Mea 3.91 (1.85–8.27)* 1.98 (0.64–6.15) 2.31 (0.97–5.49) 3.13 (1.34–7.29)*
0.51 (0.05–5.54) 4.88 (0.64–37.07) 10.55 (1.43–77.85)* Tra 0.51 (0.16–1.64) 0.59 (0.23–1.52) 0.80 (0.32–2.01)
2.29 (0.21–25.49) 1.56 (0.21–11.43) 3.37 (0.47–23.99) 0.32 (0.06–1.70) Dai 1.16 (0.33–4.09) 1.58 (0.45–5.56)
1.44 (0.14–15.04) 5.40 (0.71–41.17) 11.68 (1.58–86.61)* 1.11 (0.19–6.39) 3.47 (0.63–19.23) Wor 1.36 (0.50–3.68)
8.60 (0.64–116.04) 4.69 (0.63–34.92) 10.15 (1.40–73.38)* 0.96 (0.18–5.24) 3.01 (0.58–15.70) 0.87 (0.15–4.90) Med
B
Hou 5.13 (2.74–9.60)* 2.01 (1.12–3.60)* 11.04 (5.53–22.04)* 3.21 (1.34–7.67)* 3.77 (2.00–7.07)* 6.77 (3.35–13.67)*
7.86 (0.97–64.06) Pub 0.39 (0.19–0.81)* 2.15 (0.96–4.81) 0.62 (0.25–1.57) 0.73 (0.35–1.54) 1.32 (0.59–2.94)
0.29 (0.03–2.52) 0.46 (0.11–1.90) Mea 5.50 (2.58–11.72)* 1.60 (0.62–4.10) 1.88 (0.91–3.87) 3.37 (1.55–7.33)*
2.29 (0.20–26.40) 4.90 (0.63–38.12) 10.59 (1.40–79.97)* Tra 0.29 (0.11–0.77)* 0.34 (0.15–0.76)* 0.61 (0.26–1.44)
1.44 (0.13–15.59) 1.56 (0.21–11.75) 3.38 (0.46–24.65) 0.32 (0.06–1.73) Dai 1.17 (0.46–3.00) 2.11 (0.76–5.86)
0.18 (0.02–2.01) 5.40 (0.69–42.11) 11.67 (1.54–88.52)* 1.10 (0.19–6.43) 3.45 (0.62–19.39) Wor 1.80 (0.80–4.06)
3.70 (0.40–34.63) 4.70 (0.62–35.82) 10.16 (1.37–75.22)* 0.96 (0.17–5.30) 3.01 (0.57–15.88) 0.87 (0.15–4.96) Med

Hou, household settings; Pub, public places; Mea, meal or gathering settings; Tra, transportation; Dai, daily conversation; Wor, work or study places; Med, medical care.

(A) The lower left corner shows the pairwise comparison results of all 32 studies, and the upper right corner shows the results of 21 mainland China. (B) The lower left corner shows the pairwise comparison results of studies without small sample sizes, and the upper right corner shows the results of studies without low quality.

The effect size represents the relative risk (RR, 95% CI) of the SAR of the contact environments on the left relative to the right. Bold and * indicate that the result is statistically significant.