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Table 1 Socioeconomic, family and school-related characteristics of adolescents by gender

From: Association of socioeconomic, school-related and family factors and physical activity and sedentary behaviour among adolescents: multilevel analysis of the PRALIMAP trial inclusion data

  Boys Girls P valuea
N = 1256 (49.8%) N = 1267 (50.2%)
Anthropometric characteristics
 BMI (kg/m2) 21.5 (3.4) 21.4 (3.2) 0.5721
 Overweight/obesity (%) 21.0 15.4 0.002*
Socioeconomic characteristics
 Social and professional class of the family head    0.1949
  Executives, intermediate jobs, farmers, shopkeepers, craftsmen and managers 694 (55.8) 684 (54.4)  
  Employees and workers (unskilled or skilled) 493 (39.6) 496 (39.4)  
  Retired, inactive, unemployed 57 (4.6) 78 (6.2)  
 Family income level    0.2162
  Low or average 481 (39.1) 516 (41.6)  
  High 748 (60.9) 725 (58.4)  
 Residence area    0.0869
  Urban 636 (51.7) 597 (48.3)  
  Rural 593 (48.3) 639 (51.7)  
School-related characteristics
 School type    <0.0001*
  General and technological 1 059 (84.3) 1 156 (91.2)  
  Professional 197 (15.7) 111 (8.8)  
 Schooling placement    <0.0001*
  Typical or advanced 858 (68.3) 958 (75.6)  
  Late 398 (31.7) 309 (24.4)  
 School boarding status    0.1364
  Non-boarder 243 (19.4) 240 (19.0)  
  Half-boarder 883 (70.4) 922 (72.9)  
  Full-boarder 129 (10.3) 102 (8.1)  
Family characteristics
 Family composition    0.2392
  Two-parents 1070 (86.0) 1061 (84.3)  
  Single-parent 174 (14.0) 197 (15.7)  
 Perceived parental PA level    0.6716
  Low or average 661 (53.4) 678 (54.3)  
  High 576 (46.6) 571 (45.7)  
  1. Data are no. (%)
  2. a P-value of chi square test comparing socio-economic characteristics in boys and girls
  3. *Statistically significant (p <0.05)