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Table 3 Characteristics of students in intervention and comparison schools. Morelos, 2016

From: Delaying sexual onset: outcome of a comprehensive sexuality education initiative for adolescents in public schools

  INTERVENTION GROUP COMPARISON GROUP
  n = 650 n = 555
a) Main social demographic characteristics
Sex % (IC95%) % (IC95%) p valueb
  Male 50.5 (46.6 54.3) 46.8 (42.6, 51.0)  
  Female 49.5 (45.6, 53.3) 53.2 (48.9, 57.3) 0.211
Age
  12 to 13 52.6 (48.7, 56.4) 33.3 (29.3, 37.2)  
  14 to 15 46.3 (42.4, 50.1) 66.5 (62.5, 70.4)  
  16 to 17 1.1 (0.2, 1.8) 0.2 < 0.001
Grade level
  Second 54.5 (50.6, 58.3) 42.9 (38.7, 47.0)  
  Third 45.5 (41.6, 49.3) 57.1 (52.9, 61.2) < 0.001
Type of school
  General secondary 93.2 (91.2, 95.1) 35.9 (31.8, 39.8)  
  Technical secondary 6.8 (4.8, 8.7) 38.9 (34.8, 42.9)  
  Telesecondary 0 25.2 (21.6, 28.8)
b) Reproductive behavior
Sexual debut
  Yes 2.0 (0.9, 3) 5.4 (3.5, 7.2)  
  No 98.0 (96.9, 99) 94.6 (92.7, 96.4) c < 0.001
Pregnancy prevention advicea,b
  Yes 89.4 (87, 91.7) 81.1 (77.8, 84.3)  
  No 10.6 (8.2, 12.9) 18.9 (15.6, 22.1) < 0.001
Pregnant women drop out of school
  Yes 84.5 (81.6, 87.2) 79.1 (75.7, 82.4)  
  No 15.5 (12.7, 18.3) 20.9 (17.5, 24.2) < 0.001
Use of contraceptive in first sexual relation
  Yes 63.6 (29.7, 97.5) 66.7 (48.7, 84.5)  
  No 36.4 (2.4, 70.2) 33.3 (15.4, 51.2) 0.99
  s/d 4.0     
Use of contraceptive in last sexual relation
  Yes 83.3 (69.1, 97.4) 53.8 (22.4, 85.2) 0.061
  No 16.7 (2.5, 30.8) 46.2 (14.7, 77.5)  
  1. a Pregnancy prevention advice includes: pregnancy prevention, use of contraceptive methods and life project
  2. post-hoc unadjusted p values; b Cohen ji2; c Fisher exact test