Table 1 Odds-ratios of frequency of physical exercise (exposure reference category: Almost every day) associated with BMI category (outcome reference category: normal weight) among Norwegian university students in 2010, 2014 and 2018. ORs adjusted for age and gender
Exercise frequency | Normal weight (reference) | Overweight (BMI 25.0–29.9) | Obesity (BMI ≥ 30) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
% | (n) | % | (n) | OR | 95% CI | % | (n) | OR | 95% CI | |
2018 | ||||||||||
Never | 3.8% | (1191) | 3.9% | (442) | 1.12 | 0.99–1.26 | 7.0% | (299) | 3.29*** | 2.82–3.84 |
< 1 x/wk | 11.0% | (3419) | 12.7% | (1440) | 1.28*** | 1.18–1.38 | 18.8% | (805) | 3.00*** | 2.68–3.36 |
1 x/wk | 15.1% | (4684) | 16.3% | (1850) | 1.22*** | 1.14–1.31 | 19.0% | (814) | 2.22*** | 1.98–2.48 |
2–3 x/wk | 44.4% | (13797) | 44.3% | (5044) | 1.14** | 1.08–1.21 | 40.9% | (1749) | 1.63*** | 1.48–1.79 |
Almost every day (ref) | 25.7% | (7990) | 22.8% | (2599) | 1.00 | – | 14.2% | (606) | 1.00 | – |
2014 | ||||||||||
Never | 11.4% | (1011) | 12.9% | (323) | 1.13 | 0.92–1.40 | 20.2% | (136) | 2.79*** | 1.83–4.23 |
< 1 x/wk | 15.8% | (1395) | 17.9% | (447) | 1.18 | 0.96–1.44 | 22.8% | (154) | 2.32*** | 1.54–3.51 |
1 x/wk | 42.1% | (3726) | 39.0% | (975) | 0.99 | 0.82–1.18 | 39.0% | (263) | 1.52* | 1.02–2.26 |
2–3 x/wk | 23.6% | (2090) | 23.0% | (576) | 1.02 | 0.84–1.23 | 13.8% | (93) | 0.98 | 0.63–1.50 |
Almost every day (ref) | 7.1% | (631) | 7.2% | (180) | 1.00 | – | 4.2% | (28) | 1.00 | – |
2010 | ||||||||||
Never | 14.0% | (593) | 16.8% | (184) | 1.98*** | 1.33–2.94 | 25.8% | (60) | 3.94*** | 1.60–9.71 |
< 1 x/wk | 20.9% | (887) | 23.1% | (253) | 1.86*** | 1.27–2.74 | 29.2% | (68) | 3.03*** | 1.23–7.42 |
1 x/wk | 42.1% | (1785) | 41.6% | (456) | 1.65** | 1.14–2.40 | 34.8% | (81) | 1.81 | 0.74–4.40 |
2–3 x/wk | 17.9% | (757) | 15.2% | (166) | 1.34 | 0.90–1.99 | 8.2% | (19) | 1.00 | 0.38–2.65 |
Almost every day (ref) | 5.0% | (213) | 3.3% | (36) | 1.00 | – | 2.1% | (5) | 1.00 | – |