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Table 2 Odds ratios (OR) with 95% confidence interval (CI) for measures of physical activity among boys and girls

From: School and class-level variations and patterns of physical activity: a multilevel analysis of Danish high school students

 

Inactive during leisure time n = 6941 (10%)

Very active during leisure time n = 27,484 (40%)

Organised physical activity n = 27,865 (44%)

Self-organised physical activity n = 53,018 (83%)

PA at school during leisure time n = 8223 (13%)

Active transportation n = 39,422 (57%)

 

Boys n = 2588 (10%)

Girls n = 4353 (11%)

Boys n = 14,013 (52%)

Girls n = 13,471 (32%)

Boys n = 13,061 (53%)

Girls n = 14,804 (38%)

Boys n = 20,110 (81%)

Girls n = 32,908 (84%)

Boys n = 4158 (17%)

Girls n = 4065 (10%)

Boys n = 16,171 (60%)

Girls n = 23,251 (55%)

 

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

OR (95% CI)

Age

1.02 (1.00–1.04)

1.06 (1.03–1.08)

0.99 (0.97–1.00)

0.99 (0.97–1.01)

0.98 (0.97–1.00)

0.96 (0.94–0.98)

1.06 (1.03–1.09)

1.13 (1.10–1.16)

1.05 (1.03–1.06)

1.05 (1.03–1.08)

0.93 (0.91–0.95)

0.93 (0.91–0.95)

Ethnicity

 Danish

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

 Danish and other

1.21 (1.03–1.41)

2.17 (1.95–2.42)

0.97 (0.88–1.07)

0.72 (0.66–0.79)

0.87 (0.78–0.97)

0.79 (0.72–0.87)

1.09 (0.96–1.25)

0.90 (0.80–1.00)

1.07 (0.94–1.23)

1.38 (1.21–1.58)

0.81 (0.73–0.89)

0.84 (0.77–0.91)

 Other than Danish

1.32 (1.07–1.63)

3.38 (2.90–3.95)

1.00 (0.86–1.15)

0.64 (0.54–0.74)

0.75 (0.65–0.87)

0.63 (0.54–0.74)

0.93 (0.78–1.12)

0.71 (0.60–0.84)

0.87 (0.71–1.08)

1.40 (1.13–1.74)

0.83 (0.71–0.96)

0.82 (0.72–0.94)

Parents’ educational level

 Basic schooling

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

 Vocational or high school

0.76 (0.62–0.94)

0.75 (0.66–0.87)

1.11 (0.96–1.29)

1.26 (1.13–1.41)

1.09 (0.93–1.28)

1.23 (1.09–1.38)

1.05 (0.87–1.27)

1.04 (0.91–1.20)

1.11 (0.89–1.39)

0.77 (0.66–0.91)

1.12 (0.96–1.30)

1.01 (0.91–1.12)

 Higher education

0.63 (0.51–0.78)

0.55 (0.48–0.63)

1.00 (0.86–1.16)

1.27 (1.13–1.42)

1.12 (0.96–1.31)

1.33 (1.18–1.49)

1.14 (0.95–1.38)

1.14 (1.00–1.31)

1.21 (0.97–1.50)

0.74 (0.63–0.87)

1.56 (1.34–1.81)

1.38 (1.25–1.53)

Cohabitation

 Both parents

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

 One parent

1.27 (1.15–1.39)

1.19 (1.11–1.28)

0.84 (0.79–0.89)

0.82 (0.78–0.86)

0.76 (0.71–0.81)

0.74 (0.71–0.78)

1.03 (0.95–1.11)

1.07 (1.01–1.14)

1.00 (0.92–1.08)

1.06 (0.98–1.15)

1.02 (0.96–1.08)

1.14 (1.09–1.19)

 Other

1.35 (1.16–1.58)

1.34 (1.19–1.51)

0.85 (0.76–0.94)

0.78 (0.71–0.85)

0.83 (0.75–0.93)

0.73 (0.66–0.79)

0.82 (0.72–0.94)

0.90 (0.80–1.00)

1.21 (1.06–1.39)

1.47 (1.30–1.66)

1.39 (1.24–1.55)

1.62 (1.49–1.76)

Degree of urbanisation

 Densely populated area

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

1.0 (Reference)

 Intermediate density area

1.13 (0.96–1.32)

1.04 (0.87–1.24)

1.12 (0.96–1.31)

1.17 (1.00–1.37)

1.23 (1.04–1.44)

1.24 (1.04–1.47)

0.94 (0.83–1.06)

0.99 (0.88–1.12)

1.23 (0.93–1.61)

1.09 (0.83–1.45)

0.72 (0.57–0.92)

0.85 (0.68–1.08)

 Thinly populated area

1.28 (1.09–1.51)

1.19 (0.99–1.43)

1.11 (0.95–1.30)

1.17 (1.00–1.37)

1.51 (1.28–1.78)

1.67 (1.40–1.99)

0.81 (0.72–0.92)

0.83 (0.74–0.94)

1.45 (1.10–1.90)

1.34 (1.01–1.77)

0.50 (0.39–0.65)

0.58 (0.46–0.74)

  1. Abbreviations: CI: confidence interval, PA: physical activity
  2. All variables are age adjusted. n denotes the proportion of boys and girls classified within each measure of physical activity