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Table 1 Characteristics of the study population

From: Moderators of the longitudinal relationship between the perceived physical environment and outside play in children: the KOALA birth cohort study

  Total Boys Girls
  N Mean (SD) n Mean (SD) n Mean (SD)
Age at baseline (years) 1875 5.0 (0.5) 956 5.0 (0.5) 919 5.0 (0.5)
Age at follow-up (years) 1407 7.0 (1.2) 714 7.1 (1.1) 693 7.0 (1.3)
Gender of parent (female) 1830 97.8% 935 97.7% 895 97.7%
Maternal education (missing n = 186)      
Low maternal education 4 0.2% 3 0.3% 1 0.1%
Mid-low maternal education 155 8.7% 81 8.9% 74 8.4%
Mid-high maternal education 687 38.4% 336 36.9% 351 39.9%
High maternal education 943 52.7% 490 53.8% 453 51.5%
Parent perceived neighborhood characteristics     
Satisfaction (range 1-5) 1875 3.8 (0.9) 956 3.8 (0.9) 919 3.8 (0.9)
Functionality (range 1-5) 1875 3.0 (0.8) 956 3.0 (0.8) 919 3.0 (0.8)
Traffic safety (range 1-5) 1875 3.3 (1.0) 956 3.2 (1,0) 919 3.3 (1.0)
Attractiveness (range 1-5) 1875 3.9 (0.6) 956 3.9 (0.6) 919 3.9 (0.5)
Accessibility (range 0-7) 1875 3.4 (1.5) 956 3.4 (1.5) 919 3.4 (1.5)
Outside play at 5 years 1875 619.2 (365.4) 956 648.6 (365.4)* 919 588.6 (363.1)*
Outside play at 7 years 1317 683.5 (347.1) 664 708.8 (344.9)* 653 659.7 (347.9)*
  1. According to the number of facilities (forest, school, playground, playing field, (unpaved) gym or exercise facility, swimming pool) accessible for physical activity within 10 minutes of walking. presented as minutes per week. *difference = p < 0.01.