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Table 1 General and socioeconomic characteristics of the study population, in total and by district

From: Spatial physical activity patterns among primary school children living in neighbourhoods of varying socioeconomic status: a cross-sectional study using accelerometry and Global Positioning System

  Total (n = 83) Low-SES (n = 38) High-SES (n = 45) p - value
Age, mean (SD) years 8.5 (0.3) 8.5 (0.3) 8.5 (0.3) 0.603**
Sex, n (%) boys 43 (51.8) 23 (60.5) 20 (44.4) 0.107*
girls 40 (48.2) 15 (39.5) 25 (55.6)
Body height, mean (SD) cm 133.4 (5.6) 134.2 (6.1) 132.6 (5.1) 0.196**
Body weight, median (IQR) kg 28.6 (25.6 - 32.5) 30.1 (25.9 - 34.2)) 27.2 (25.5 - 30.6) 0.088***
BMI, median (IQR) kg/m-2 16.1 (15.1 - 17.4) 16.5 (15.3 - 18.1) 15.7 (15.0 - 17.1) 0.131***
Daily wear time, median (IQR) hours 12.6 (11.8 - 13.3) 12.6 (12.1 - 13.4) 12.7 (11.5 - 13.3) 0.672***
Daily time of combined data, median (IQR) hours 9.4 (7.9 - 10.3) 9.3 (7.8 - 10.3) 9.5 (8.1 - 10.4) 0.315***
Availability of GPS data, median (IQR) % 75.8 (66.9 - 83.9) 73.8 (63.4 - 80.6) 78.4 (68.3 - 84.7) 0.113***
Wear days (daily wear time ≥1 h), median (IQR) number 7.0 (7.0 - 7.0) 7.0 (7.0 - 7.0) 7.0 (7.0 - 7.0) 0.243***
Valid days (daily combined data ≥9 h, median (IQR) number 5.0 (3.0 - 6.0) 4.5 (2.8 - 6.0) 5.0 (3.0 - 6.0) 0.823***
Language spoken at home, n (%) German 48 (57.8) 13 (34.2) 35 (77.8) <0.001*
German and other 22 (26.5) 16 (42.1) 6 (13.3)
other 12 (14.5) 9 (23.7) 3 (6.7)
n/a 1 (1.2) 0 (0.0) 1 (2.2)
Nationality, n (%) Swiss 41 (49.4) 13 (34.2) 28 (62.2) 0.030*
double citizen 25 (30.1) 15 (39.5) 10 (22.2)
non-Swiss 16 (19.3) 10 (26.3) 6 (13.3)
n/a 1 (1.2) 0 (0.0) 1 (2.2)
Parental monthly income, n (%) ≤ CHF 4000 5 (6.0) 4 (10.5) 1 (2.2) 0.026*
CHF 4001 – 6000 13 (15.7) 8 (21.1) 5 (11.1)
CHF 6001 – 8000 12 (14.5) 7 (18.4) 5 (11.1)
CHF 8001 – 12’000 22 (26.5) 10 (26.3) 12 (26.7)
≥ CHF 12’000 20 (24.1) 3 (7.9) 17 (37.8)
n/a 11 (13.3) 6 (15.8) 5 (11.1)
Highest parental education, n (%) compulsory/basic 4 (4.8) 4 (10.5) 0 (0.0) <0.001*
upper secondary 20 (24.1) 18 (47.4) 2 (4.4)
tertiary/higher 58 (69.9) 16 (42.1) 42 (93.3)
n/a 1 (1.2) 0 (0.0) 1 (2.2)
Sports club membership, n (%) yes 43 (51.8) 18 (47.4) 25 (55.6) 0.576*
no 39 (47.0) 20 (52.6)) 19 (42.2)
n/a 1 (1.2) 0 (0.0) 1 (2.2)
  1. Bold: significant difference at p < 0.05
  2. *χ2-test; **t-test; ***Mann–Whitney-U-test
  3. IQR interquartile range, SD standard deviation, BMI body mass index