Table 3

ABRs of 7-, 10-, and 14-d prophylaxis regimens

Prophylaxis (group 1) across-treatment regimensProphylaxis (group 1)* within-subject comparison
7-d Regimen (N = 40)10-d Regimen (N = 7)14-d Regimen (N = 21)7-d Regimen (N = 21)14-d Regimen (N = 21)7-d vs 14-d Regimen
AsBR       
 Median (IQR) 0 (0, 0) 0 (0, 0) 0 (0, 1.0) 0 (0, 0) 0 (0, 1.0)  
 Estimated rate 0.65 0.56 0.83 0.29 0.83 0.35 
 95% CI 0.37, 1.13 0.27, 1.17 0.38, 1.77 0.068, 1.198 0.385, 1.771 0.076, 1.575 
 Mean difference (95% CI)      −0.79 (−1.780, 0.197) 
Total ABR       
 Median (IQR) 0 (0, 1.87) 0 (0, 1.78) 1.08 (0, 2.7) 0 (0, 1.53) 1.08 (0, 2.70)  
 Estimated rate 1.58 1.69 1.61 0.69 1.61 0.43 
 95% CI 1.02, 2.44 0.87, 3.28 0.93, 2.80 0.296, 1.626 0.930, 2.801 0.162, 1.138 
 Mean difference (95% CI)      −1.25 (−2.562, 0.070) 
Joint ABR       
 Median (IQR) 0 (0, 1.53) 0 (0, 0.88) 0 (0, 1.04) 0 (0, 0) 0 (0, 1.04)  
 Estimated rate 1.13 0.92 1.11 0.41 1.11 0.36 
 95% CI 0.70, 1.84 0.41, 2.04 0.51, 2.41 0.141, 1.161 0.513, 2.414 0.111, 1.199 
 Mean difference (95% CI)      −0.97 (−2.197, 0.249) 
Treatment duration, wk       
 Median (IQR) 38.4 (30.0, 82.3) 34.3 (21.3, 58.6) 55.1 (37.0, 63.6)    
Prophylaxis (group 1) across-treatment regimensProphylaxis (group 1)* within-subject comparison
7-d Regimen (N = 40)10-d Regimen (N = 7)14-d Regimen (N = 21)7-d Regimen (N = 21)14-d Regimen (N = 21)7-d vs 14-d Regimen
AsBR       
 Median (IQR) 0 (0, 0) 0 (0, 0) 0 (0, 1.0) 0 (0, 0) 0 (0, 1.0)  
 Estimated rate 0.65 0.56 0.83 0.29 0.83 0.35 
 95% CI 0.37, 1.13 0.27, 1.17 0.38, 1.77 0.068, 1.198 0.385, 1.771 0.076, 1.575 
 Mean difference (95% CI)      −0.79 (−1.780, 0.197) 
Total ABR       
 Median (IQR) 0 (0, 1.87) 0 (0, 1.78) 1.08 (0, 2.7) 0 (0, 1.53) 1.08 (0, 2.70)  
 Estimated rate 1.58 1.69 1.61 0.69 1.61 0.43 
 95% CI 1.02, 2.44 0.87, 3.28 0.93, 2.80 0.296, 1.626 0.930, 2.801 0.162, 1.138 
 Mean difference (95% CI)      −1.25 (−2.562, 0.070) 
Joint ABR       
 Median (IQR) 0 (0, 1.53) 0 (0, 0.88) 0 (0, 1.04) 0 (0, 0) 0 (0, 1.04)  
 Estimated rate 1.13 0.92 1.11 0.41 1.11 0.36 
 95% CI 0.70, 1.84 0.41, 2.04 0.51, 2.41 0.141, 1.161 0.513, 2.414 0.111, 1.199 
 Mean difference (95% CI)      −0.97 (−2.197, 0.249) 
Treatment duration, wk       
 Median (IQR) 38.4 (30.0, 82.3) 34.3 (21.3, 58.6) 55.1 (37.0, 63.6)    

The median assigned doses for the 7-, 10-, and 14-d prophylaxis regimens were 40, 75, and 75 IU/kg, respectively.

*

Includes subjects with a minimum of 12 wk of treatment on both 7-d and 14-d prophylaxis.

The estimated rate was calculated assuming a Poisson distribution.

95% CI based on Student t test from matched pairs design.

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