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Table 2 Bivariate analysis and prevalence of the variables that remained in the final logistic regression model of the students in private high schools (n = 2561).

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

Variable   Binge Total p value
   No Yes   
   n (wgt%) 95%CI n (wgt%) 95%CI   
Gender Male 709 (43.9) 40.6 - 47.3 482 (55.9) 50.1 - 61.6 1191 0.001
  Female 968 (56.1) 52.7 - 59.4 423 (44.1) 38.4 - 49.9 1391  
Monthly Tuition        <0.001
  Up to US$ 190 386 (18.8) 7.4 - 40.0 149 (13.6) 5.1 - 31.5 535  
  US$ 191- US$ 260 631 (42.8) 23.6 - 64.4 347 (41.0) 21.9 - 63.3 978  
  US$ 261- US$ 480 502 (27.5) 12.8 - 49.4 230 (24.4) 11.2 - 45.2 732  
  Over US$ 480 181 (11.0) 3.8 - 27.7 186 (20.9) 7.7 - 45.6 367  
Family        
Living with mother No 75 (4.9) 3.4 - 7.1 75 (9.0) 7.0 - 11.5 150 0.002
  Yes 1622 (95.1) 92.9 - 96.6 836 (91.0) 88.5 - 93.0 2458  
10 min talks with parents        0.043
  Never 42 (2.6) 1.8 - 3.9 25 (2.4) 1.5 - 3.9 67  
  Sometimes/rarely 427 (23.0) 20.1 - 26.3 258 (28.4) 24.4 - 32.6 685  
  Always/often 1226 (74.3) 71.0 - 77.5 625 (69.2) 64.8 - 73.2 1851  
Parents talk about drugs        0.100
  Never 371 (19.2) 15.8 - 23.1 156 (15.3) 12.7 - 18.2 527  
  Sometimes/rarely 586 (34.4) 32.2 - 36.7 324 (32.7) 26.7 - 39.4 910  
  Always/often 739 (46.4) 42.0 - 50.9 431 (52.0) 44.4 - 59.6 1170  
Someone you live with gets drunk        <0.001
  No 1480 (89.2) 87.2 - 90.9 713 (81.6) 78.0 - 84.8 2193  
  Yes 186 (10.8) 9.1 - 12.8 174 (18.4) 15.2 - 22.0 360  
Leisure        
You went out with friends at night        <0.001
  Almost every day 37 (2.5) 1.7 - 3.8 106 (12.9) 9.3 - 17.5 143  
  At least once a week 558 (35.1) 31.6 - 38.8 567 (63.5) 57.5 - 69.1 1125  
  1 to 3 times a month 697 (39.7) 36.0 - 43.6 205 (20.5) 17.1 - 24.3 902  
  Not even once 395 (22.7) 19.4 - 26.2 30 (3.2) 1.7 - 5.8 425  
Religiosity        
You trusted in God        <0.001
  Not at all 125 (7.3) 5.2 - 10.1 103 (10.8) 7.3 - 15.5 228  
  A little/sort of 424 (25.0) 22.5 - 27.7 303 (32.5) 28.4 - 37.0 727  
  A lot/very much 1140 (67.7) 63.3 - 71.9 502 (56.7) 49.2 - 63.9 1642  
Religious services        <0.001
  Almost every day 93 (6.3) 4.4 - 8.9 23 (2.6) 1.5 - 4.2 116  
  At least once a week 398 (23.3) 19.4 - 27.7 139 (14.3) 10.8 - 18.9 537  
  1 to 3 times a month 308 (17.5) 14.5 - 21.1 201 (22.4) 19.2 - 25.9 509  
  Not even once 886 (52.9) 47.9 - 57.8 540 (60.7) 54.8 - 66.4 1426