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Table 1 Subject characteristics and descriptive statistics for physical activity and sedentary behavior; Mean (SD) or percent

From: Adolescent physical activity and screen time: associations with the physical home environment

  Total Males Females
Variable (N = 575) (N = 286) (N = 289)
Age 14.5 (1.8) 14.5 (1.8) 14.5 (1.8)
Race (% Caucasian) 83.6 84.6 82.7
BMI% 61.1 (28.7) 61.2 (30.2) 60.9 (27.1)
Overweight and obese (% ≥85%)^ 27.1 29.0 25.3
Adult BMI 27.1 (6.1) 27.4 (5.8) 26.9 (6.4)
Highest Adult Education    
   % ≥College graduate 65.6 67.5 63.7
Number of people in home 4.3 (1.3) 4.3 (1.3) 4.4 (1.3)
Number of adults in home (>18 yrs)    
   1 Adult 12.5 12.2 12.8
   2 Adults 64.4 67.1 61.6
   3 or More Adults 23.1 20.6 25.6
Number of minors in home (<18 yrs)    
   1 child 27.6 28.3 27.0
   2 children 42.8 44.1 41.5
   3 or children 29.0 27.6 30.5
PAMI-Derived Variables    
   PA Items* 73.0 (42.0) 79.4 (45.2) 66.8 (37.7)
   PA Density* 5.1 (2.9) 5.5 (3.1) 4.7 (2.6)
   PAASS* 240.3 (142.0) 262.2 (153.6) 218.7 (126.2)
   PAASS Equipment Categories    
Sports* 158.7 (108.3) 179.1 (122.4) 138.6 (88.1)
Fitness 29.3 (25.7) 27.5 (22.0) 31.0 (28.9)
Transportation* 21.0 (13.5) 22.9 (13.9) 19.2 (12.9)
Outdoor 31.3 (29.5) 32.6 (30.7) 30.0 (28.3)
   Media Items 10.6 (4.5) 10.8 (4.6) 10.4 (4.3)
   Media Density 0.8 (0.3) 0.8 (0.4) 0.7 (0.3)
   MAASS 40.6 (17.2) 41.7 (18.2) 39.6 (16.0)
   Total TVs in Home 3.6 (1.8) 3.6 (1.9) 3.6 (1.7)
   Total TVs in Children's Bedrooms 0.6 (0.9) 0.6 (0.9) 0.6 (0.8)
   Activity:Media Ratio Score* 6.9 (5.8) 7.6 (6.8) 6.3 (4.3)
Physical Activity and Sedentary Behavior    
   Ave Min MVPA* (ActiGraph) 43.6 (25.9) 49.7 (28.6) 37.5 (21.4)
   Ave Min SED (ActiGraph) 562.9 (105.7) 555.7 (110.5) 570.0 (100.3)
   Ave Min Screen Time* (Self-Report) 330.2 (219.8) 357.3 (223.2) 303.5 (213.4)
  1. ^ based on the CDC BMI growth charts
  2. * significant gender difference, P < 0.05
  3. PAASS: Physical Activity Availability and Accessibility Summary Score
  4. MAASS: Media Availability and Accessibility Summary Score