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. 2011 Jun 30;11:522. doi: 10.1186/1471-2458-11-522

Table 3.

Sensitivity of discontinuous weekend-extension strategies to compliance levels

Effectiveness R0 = 1.4 R0 = 2.0

Compliance Overall attack rates % (95%CIa) Relative effectivenessb Overall attack rates % (95%CI) Relative effectiveness
Baseline 18.61 (18.54, 18.71) 0.00 26.43 (26.36, 26.53) 0.00

Wed 100% 16.53 (16.42, 16.64) 0.11 25.67 (25.58, 25.75) 0.03
90% 16.76 (16.60, 16.90) 0.10 25.73 (25.67, 25.79) 0.03
75% 17.10 (16.98, 17.21) 0.08 25.86 (25.77, 25.95) 0.02
50% 17.70 (17.54, 17.87) 0.05 26.08 (26.01, 26.14) 0.01

Tue+Thur 100% 14.43 (14.30, 14.58) 0.22 24.77 (24.68, 24.84) 0.06
90% 15.00 (14.87, 15.16) 0.19 24.93 (24.83, 25.00) 0.06
75% 15.73 (15.63, 15.83) 0.15 25.23 (25.17, 25.29) 0.05
50% 16.90 (16.79, 17.02) 0.09 25.70 (25.62, 25.77) 0.03

Mon+Wed+ 100% 5.49 (1.59, 6.88) 0.69 21.41 (21.27, 21.52) 0.19
Fri 90% 9.23 (8.11, 9.80) 0.50 22.07 (21.95, 22.23) 0.16
75% 11.92 (11.64, 12.27) 0.36 23.00 (22.81, 23.11) 0.13
50% 14.95 (14.72, 15.28) 0.20 24.42 (24.32, 24.56) 0.08

a95%CI stands for the 95% confidence intervals from 50 model realizations.

bRelative effectiveness = (Baseline attack rate -Strategy-specific attack rate)/Baseline attack rate.

Table 3 compares the overall attack rates and relative effectiveness resulted from three discontinuous weekend-extension strategies (Wed, Tue+Thur, and Mon+Wed+Fri). Sensitivity analysis was conducted on each strategy under five compliance levels of 0%, 50%, 75%, 90%, and 100%.