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Table 2 Associations between nationality and various factors: % or mean (SD)

From: School difficulties in immigrant adolescent students and roles of socioeconomic factors, unhealthy behaviours, and physical and mental health

  French European immigrants Non-European immigrants p-value
Number of subjects 1,451 54 54  
Boys 50.0 44.4 51.8 NS
Age (yr) : Mean (SD) 13.0 (1.3) 12.8 (1.1) 13.4 (1.7) NS
Family structure     <0.01
 Intact 63.8 57.4 46.3  
 Parents divorced/separated and reconstructed family 24.7 35.2 25.9  
 Single parent and others 11.5 7.4 27.8  
Father’s occupation     <0.001
 Managers, professionals, and intermediate professionals 39.5 22.2 18.5  
 Craftsmen, tradesmen, and firm heads 19.9 24.1 22.2  
 Service workers and clerks 9.2 5.6 13.0  
 Manual workers and other occupations 24.5 38.9 24.1  
 Inactive people 6.9 9.3 22.2  
Insufficient income 16.9 25.9 31.5 <0.01
WHOQoL-Bref (<25 th percentile value)
 Physical 21.7 35.2 50.0 <0.001
 Psychological 26.1 35.2 42.6 <0.01
 Social relationships 25.6 25.9 53.7 <0.001
 Environment 23.6 37.0 53.7 <0.001
Unhealthy behaviours
Last-30-day substance use (at least once)
 Tobacco 10.5 16.7 24.1 <0.01
 Alcohol 35.6 31.5 29.6 NS
 Cannabis 5.1 9.3 14.8 <0.01
 Other illicit drugs 2.3 7.4 11.1 <0.001
Age at initiation for users (yr): Mean (SD)
 Tobacco 12.1 (2.0) 11.6 (1.6) 10.8 (2.9) <0.05
 Alcohol 10.7 (2.2) 10.6 (2.3) 10.1 (3.0) NS
 Cannabis 12.9 (1.7) 12.8 (1.3) 10.7 (3.7) <0.01
 Other illicit drugs 12.4 (2.6) 12.7 (1.6) 11.0 (3.5) NS
Lack of regular sports/physical activities 11.4 14.8 16.7 NS
School absenteeism
 Health problems 79.1 79.6 74.1 NS
 Vacation 5.3 7.4 13.0 <0.05
 Family problems 9.0 20.4 14.8 <0.01
 Skipping school 5.6 11.1 22.2 <0.001
 Others 11.8 6.3 27.8 <0.01
 Number of days during the school year     <0.01
 0 11.6 7.4 5.6  
 1-7 70.7 61.1 64.8  
 8-14 12.3 18.5 14.8  
 > 14 5.4 13.0 14.9  
  1. NS: non-significant (p > 0.05).