From: Performance of models for estimating absolute risk difference in multicenter trials with binary outcome
Response
Center
Active No./Total (%)
Control No./Total (%)
1
11/36 (31)
10/37 (27)
2
16/20 (80)
22/32 (69)
3
14/19 (74)
7/19 (37)
4
2/16 (13)
1/17 (6)
5
6/17 (35)
0/12 (0)
6
1/11 (9)
0/10 (0)
7
1/5 (20)
1/9 (11)
8
4/6 (67)
6/7 (86)