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Table 1 Frequencya, intensitya and duration of physical activity in commuting.

From: Large ethnic variations in recommended physical activity according to activity domains in amsterdam, the netherlands

   Men Women
   Dutch
n = 276
Hindustani-
Surinamese
n = 162
African-
Surinamese
n = 231
Dutch
n = 291
Hindustani-
Surinamese
n = 208
African-
Surinamese
n = 458
Walking frequency 24.8 16.0 37.1** 19.7 35.0 41.1**
  intensity (% moderate) 14.2 11.6 22.0 11.8 28.6 27.8**
     (% vigorous) 8.5 1.7 6.8 7.2 3.8 10.0
  duration (median, min/week) 100 100 90 100 100 100
Cycling frequency 32.4 6.3 13.2** 31.3 8.2 17.3**
  intensity (% moderate) 15.8 4.6 9.4* 23.1 6.4 11.6
     (% vigorous) 14.2 1.7 2.5 6.7 1.6 4.4
  duration (median, min/week) 150 60 120* 120 100 120
  1. aAge-standardized to Amsterdam population. Duration is given for both medium and vigorous intensity physical activity. Difference in duration: Kruskall-Wallis rank test for difference. Difference in frequency and intensity: Chi-square test of independence between groups. *p < 0.05. **p < 0.01.