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Table 1 Sample characteristics for male and female college youth (percentage or mean), TYP

From: Exploring the relationship between premarital sex and cigarette/alcohol use among college students in Taiwan: a cohort study

Covariates at age 20 TotalN = 2119 Premarital sex by age 20(n = 342) No premarital sex by age 20(n = 1777)
Male Female Male Female
Adolescent risky health behavior      
Adolescent's cigarettes use      
 Smokers 7.8 32.7 12.3 7.9 1.5
 Non-smokers 92.2 67.3 87.7 92.1 98.5
Adolescent's alcohol use      
 Heavier drinkers 4.2 16.1 5.4 3.8 1.8
 Light drinkers 21.2 32.7 30.8 23.3 15.5
 Abstainers 74.6 51.2 63.9 72.9 82.7
Peers characteristics      
Perceived cigarettes use of best friends      
 Smokers 21.4 58.8 23.8 25.5 9.2
 Non-smokers 78.6 41.2 76.2 74.5 90.8
Perceived alcohol use of best friends      
 Heavier drinkers 5.5 19.4 7.7 5.3 2.3
 Light drinkers 22.2 36.0 26.9 24.3 16.7
 Abstainers 72.3 44.6 65.4 70.4 81.1
Perceived sexual behavior of best friends      
 Half or greater 12.6 44.3 40.0 7.3 6.4
 Less than half 27.3 34.9 36.9 26.3 25.2
 None or unknown 60.1 20.8 23.1 66.3 68.4
Attitude toward premarital sex      
Premarital sex permissiveness, range 0–3, (mean) 2.5 3.0 2.9 2.6 2.2
Stressful life and behavioral events      
Stressful school events      
 Yes 13.7 17.9 28.5 11.1 13.0
 No 86.3 82.1 71.5 88.9 87.0
Number of stressful personal events      
 2 or more 16.7 25.9 42.3 11.7 15.5
 1 27.6 31.6 23.9 27.4 27.3
 0 55.7 42.5 33.9 60.9 57.3
Deviant behaviors      
 Yes 31.0 63.7 30.0 42.2 14.3
 No 69.0 36.3 70.0 57.8 85.7
Psychological complaints (mean) 8.6 9.2 11.7 7.1 9.2
Family SES      
Maternal education      
 Junior HS or lower 42.2 47.6 42.2 40.4 42.6
 Senior HS 35.7 30.8 41.4 36.7 35.1
 College or higher 22.1 21.6 16.4 22.8 22.4
Monthly family income      
 <50000 35.2 30.3 38.6 33.3 37.6
 50000-69999 29.7 26.9 26.0 32.3 28.7
 70000 & above 35.1 42.8 35.4 34.5 33.8
Family structure: Lives with both biological parents      
 Yes 80.8 72.2 61.5 82.0 84.2
 No 19.3 27.8 38.5 18.1 15.8
Perceived family support      
School work      
 Yes 64.3 57.6 55.4 60.1 70.6
 No 35.7 42.5 44.6 39.9 29.4
Economic difficulty      
 Yes 87.3 84.0 83.1 85.6 90.0
 No 12.7 16.0 16.9 14.4 10.0
Emotional difficulty      
 Yes 44.6 31.6 50.0 38.4 52.1
 No 55.4 68.4 50.0 61.6 47.9
Perceived friend support      
School work      
 Yes 79.9 82.1 80.0 74.8 83.8
 No 20.1 17.9 20.0 25.2 16.2
Economic difficulty      
 Yes 25.4 36.3 46.2 24.2 21.2
 No 74.6 63.7 53.9 75.9 78.8
Emotional difficulty      
 Yes 85.1 91.0 93.9 78.7 88.2
 No 14.9 9.0 6.2 21.3 11.8
Premarital sex in college      
Involvement in premarital sex by age 22      
 Yes 28.1 -- -- 20.2 13.1
 No 71.9 -- -- 79.8 86.9
  1. Note: Participants who missed responses on covariates were excluded. Percentages may not add up to 100 due to rounding.