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Table 3 Comparison of household alcohol use between alcohol use disorder patients and healthy controls

From: Family alcohol use, rather than childhood trauma, is more likely to cause male alcohol use disorder: findings from a case-control study in northern China

Parameter Patients (n = 129) Controls (n = 129) z/χ2(p)
Age at first drink, yearsa 17.0 (15.0, 19.0) 18.0 (16.0, 22.0) 3.88 (< 0.01)
Experienced drunkenness, n (%) 129 (50) 120 (46.51) 2.71 (< 0.01)
Age at first drunkenness, yearsa 19.0 (17.0,24.5) 21.0 (18.0, 27.0) 4.08 (< 0.01)
Minimum number of times the father drank alcohol per week during respondent’s childhood, n (%)
 0 5 (1.94) 62 (24.03) 7.95 (< 0.01)
 1–3 15 (5.81) 51 (19.77) 4.99 (< 0.01)
 4–6 8 (3.10) 6 (2.33) 0.27 (0.78)
 7 or more 101 (39.15) 10 (3.88) 11.3 (< 0.01)
Minimum number of times the mother drank alcohol per week during respondent’s childhood, n (%)
 0 99 (38.37) 107 (41.47) 1.09 (0.27)
 1–3 26 (10.08) 16 (6.20) 1.52 (0.13)
 4–6 2 (0.78) 6 (2.33) 1.08 (0.28)
 7 or more 2 (0.78) 0 0.71 (0.48)
Induced to drink during childhood, n (%)
 Ever 83 (32.17) 30 (11.63)  
 Never 46 (17.83) 99 (38.37) 44.23 (< 0.01)
Father’s attitude towards childhood drinking, n (%)
 Oppose 34 (13.18) 56 (21.71) 2.74 (0.01)
 Neutral 47 (18.22) 40 (15.50) 0.79 (0.43)
 Support 48 (18.60) 33 (12.79) 1.88 (0.06)
Mother’s attitude towards childhood drinking, n (%)
 Oppose 98 (37.98) 42 (16.28) 6.87 (< 0.01)
 Neutral 27 (10.47) 83 (32.17) 6.92 (< 0.01)
 Support 4 (1.55) 4 (1.55) 0.36 (0.72)
  1. a values are medians (25th, 75th percentile)