Table 1A. Response rate by country throughout the study period.
No. of centers contacted per Country July August September October November December
Brazil n=70 70 (100.0) 68 (97.1) 66 (94.3) 48 (68.6) 56 (80.0) 45 (64.3)
Mexico n=38 31 (81.6) 32 (84.2) 30 (79.0) 18 (47.4) 32 (84.2) 19 (5.0)
Southern Cone Region
Argentina n=30
Chile n=10
Paraguay n=1
Bolivia n=3
Uruguay n=2
17 (33.3)
9 (90.0)
1 (100.0)
2 (66.7)
2 (100.0)
20 (66.7)
8 (80.0)
1 (100)
2 (66.7)
2 (100.0)
12 (40.0)
9 (90.0)
1 (100)
2 (66.7)
2 (100.0)
14(46.7)
4 (40.0)
1 (100)
2 (66.7)
2 (100.0)
13 (43.3)
7 (70.0)
1 (100)
1 (33.3)
0
8 (26.7)
7 (70.0)
0
1 (33.3)
2 (100.0)
Northwest Region
Colombia n=12
Peru n=12
Venezuela n=6
Ecuador n= 6
Guatemala n=1
Nicaragua n=1
Panama n=3
Dominican Republic n=2
12 (100.0)
8 (66.7)
5 (83.3)
3 (50.0)
1 (100)
1 (100)
1 (33.3)
1 (50.0)
12 (100.0)
8 (66.7)
3 (50.0)
3 (50.0)
1 (100)
0
3 (100.0)
1 (50.0)
9 (75.0)
7 (59.3)
1 (16.7)
3 (50.0)
1 (100)
0
4 (133.0)
1 (50.0)
9 (75.0)
5 (41.7)
1 (16.7)
5 (83.3)
1 (100)
0
1 (33.3)
0
11 (91.7)
6 (50.0)
2 (33.3)
2 (33.3)
0
1 (100)
2 (66.7)
0
7 (59.3)
4 (33.3)
0
4 (66.7)
1 (100)
0
1 (33.3)
0

(%) corresponds to the proportion of centers that responded the survey each month.