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Table 2 Knowledge assessment score before and after the intervention*

From: Improving awareness of preconception health among adolescents: experience of a school-based intervention in Lebanon

Preconception health components Pre-test N, (%) N = 7,290 Post-test N, (%) N = 5,786 p-value
Seeking medical advice    
  True 4,646 (65.2%) 4,243 (75.3%) < 0.001
  False 2,119 (29.7%) 1,262 (22.4%)
  Don’t know 361 (5.1%) 132 (2.3%)
Trisomy 21    
  True 1,785 (24.8%) 2,777 (48.8%) < 0.001
  False 4,058 (56.3%) 2,416 (42.4%)
  Don’t know 1,364 (18.9%) 502 (8.8%)
Pre-pregnancy folic acid    
  True 1,529 (21.4%) 3,240 (58.3%) < 0.001
  False 2,751 (38.6%) 1,406 (25.3%)
  Don’t know 2,853 (40.0%) 908 (16.3%)
Diabetes    
  True 3,836 (53.5%) 3,963 (69.9%) < 0.001
  False 353 (4.9%) 736 (13.0%)
  Don’t know 2,977 (41.5%) 968 (17.1%)
Epilepsy    
  True 2,851 (40.3%) 3,265 (58.3%) < 0.001
  False 1,040 (14.7%) 1,103 (19.7%)
  Don’t know 3,192 (45.1%) 1,235 (22.0%)
Toxoplasmosis    
  True 3,130 (43.4%) 4,484 (79.4%) < 0.001
  False 2,000 (27.8%) 667 (11.8%)
  Don’t know 2,074 (28.8%) 497 (8.8%)
Medication & pregnancy    
  True 3,864 (54.5%) 4,420 (79.0%) < 0.001
  False 906 (12.8%) 491 (8.8%)
  Don’t know 2,319 (32.7%) 685 (12.2%)
Obesity    
  True 2,519 (35.1%) 3,388 (59.6%) < 0.001
  False 2,693 (37.6%) 1,728 (30.4%)
  Don’t know 1,956 (27.3%) 572 (10.1%)
Alcohol, smoking and illicit drugs    
  True 5,223 (72.3%) 4,804 (84.0%) < 0.001
  False 1,385 (19.2%) 652 (11.4%)
  Don’t know 616 (8.5%) 261 (4.6%)
Vaccination    
  True 2,399 (66.6%) 2,410 (86.1%) < 0.001
  False 329 (9.1%) 128 (4.6%)
  Don’t know 873 (24.2%) 262 (9.4%)
Total score (mean ± SD) 4.36 ± 1.8 6.42 ± 2.1 < 0.001
  1. *Missing not shown.