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Table 1 Prevalence of past-month binge drinking by gender and age among students in private high schools (n = 2612).

From: Social factors associated to binge drinking: a cross-sectional survey among Brazilian students in private high schools

  Gender   Age  
  Male Female Total 14-15 16-17 18-19 Total
Binge drinking frequency n (wgt%) 95%CI n (wgt%) 95%CI n n (wgt%) 95%CI n (wgt%) 95%CI n (wgt%) 95%CI n
None 709 (59.7) 54.8 - 64.4 968 (70.6) 65.9 - 74.8 1677 608 (71.7) 66.7 - 76.1 1005 (63.7) 58.8 - 68.2 64 (47.5) 40.1 - 55.1 1677
1 time 138 (10.4) 8.1 - 13.3 139 (10.2) 8.6 - 11.9 277 81 (9.7) 6.9 - 13.4 176 (10.0) 8.1 - 12.4 19 (12.3) 7.5 - 19.4 276
2 times 110 (10.1) 8.4 - 12.2 109 (7.1) 5.4 - 9.2 219 67 (7.6) 6.2 - 9.3 135 (8.6) 7.3 - 10.1 16 (13.3) 7.2 - 23.3 218
3 to 5 times 150 (12.7) 10.2 - 15.7 107 (7.6) 5.7 - 10.0 257 59 (7.6) 5.5 - 10.4 178 (11.2) 8.6 - 14.5 21 (13.6) 8.6 - 21.0 258
6 to 9 times 45 (3.2) 2.0 - 5.0 43 (2.4) 1.5 - 3.8 88 23 (2.0) 1.0 - 4.1 56 (3.1) 2.0 - 4.6 8 (3.8) 1.8 - 7.8 87
10 or + 39 (3.9) 2.3 - 6.8 25 (2.2) 1.2 - 3.9 64 9 (1.4) 0.4 - 4.2 47 (3.4) 2.3 - 5.1 8 (9.4) 3.2 - 24.4 64
Total 1191 (100)   1391 (100)   2582* 847 (100)   1597 (100)   136 (100)   2580*
  1. Wgt%: percentage weighted
  2. *30 missing data for gender and 32 missing data for age.