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Table 2 Descriptive characteristics of the study population

From: School factors and student drinking in high schools: a cross-sectional study of school policies and party regulation

 Total (%)Boys (%)Girls (%)
68,898 (100)26,941 (39)41,957 (61)
Age
  ≤ 16 years14,000 (20)4912 (18)9088 (22)
 17 years23,039 (33)8732 (32)14,307 (34)
 18 years20,791 (30)8331 (31)12,480 (30)
  ≥ 19 years11,068 (16)4986 (19)6082 (15)
 Mean age in years (SD)17.9 (1.6)18.0 (2.0)17.8 (1.3)
Perceived ethnicity a, N (%)
 Danish61,331 (90)23,493 (89)37,838 (91)
 Danish and other4666 (6.9)1986 (7.5)2680 (6.5)
 Other than Danish1937 (2.9)943 (3.6)994 (2.4)
Living situationa, N (%)
 Lives with both parents44,270 (64)17,672 (66)26,598 (64)
 Lives with one parent19,898 (29)7458 (28)14,440 (30)
 Lives alone4065 (6.0)1527 (5.7)2538 (6.1)
  1. aSome columns do not sum to 100% due to missing values