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Table 1 Demographic Characteristics of the Community and Clinical Samples

From: Development and psychometric properties of the health-risk behavior inventory for Chinese adolescents

Demographic variables Sample 1 p Sample 2a
Total (6,633) Boys (3,280) Girls (3,353) χ 2 Total (326)
Ethnicity     1.15 0.28  
 Han nationality 94.5% (6,267) 94.8% (3,109) 94.2% (3,158)    94.2% (307)
 Other ethnic minority 5.5% (366) 5.2% (171) 5.8% (195)    5.8% (19)
Grade     37.74 <0.01  
 10th 44% (2,918) 43% (1,409) 45% (1,509)    
 11th 31% (2,056) 34.3% (1,509) 27.8% (931)    
 12th 25% (1,659) 22.7% (746) 27.2% (913)    
Only one child     68.99 <0.01  
 Yes 65.7% (4,361) 70.6% (2,317) 61% (2,044)    48.8% (159)
 No 34.3% (2,272) 29.4% (963) 39% (1,309)    51.2% (167)
Family composition     .57 0.90  
 Nuclear families 91% (6,036) 91.2% (2,992) 90.8% (3,044)    77.9% (254)
 Divorced families 4.1% (272) 3.9% (129) 4.3% (143)    11.3% (37)
 Remarried families 2.7% (180) 2.7% (87) 2.8% (93)    6.8% (22)
 Single-parent families 2.2% (145) 2.2% (72) 2.2% (73)    4% (13)
Paternal education     0.87 0.78  
 Primary or less 51% (3,383) 51.6% (1,692) 50.4% (1,691)    55.8% (182)
 High school 32.1% (2,129) 31.7% (1,040) 32.5% (1,089)    26.1% (85)
 University 16.9% (1,121) 17.7% (581) 16.1% (540)    18.1% (59)
Maternal education     2.56 0.14  
 Primary or less 59.4% (3,940) 58.3% (1,912) 60.5% (2,028)    62% (202)
 High school 28.4% (1,884) 27.4% (899) 29.4% (985)    23% (75)
 University 12.2% (809) 14.3% (469) 10.1% (340)    15% (49)
  1. Note. a = 85.of the clinical sample was male, so the distribution of sample 2 not according to gender.