Table 3 Association between physical exercise and non-suicidal self-harm (NSSH) and suicide attempt in male and female university and college students in the SHoT study, Norway, 2018
From: Physical exercise, mental health problems, and suicide attempts in university students
Non-suicidal self-harm (NSSH) | Suicide attempt | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Unadjusted model | Adjusted modela | Unadjusted model | Adjusted modela | |||||||||||||
n | % | OR | 95% CI- | 95%CI+ | OR | 95%CI- | 95%CI+ | n | % | OR | 95%CI- | 95%CI+ | OR | 95%CI- | 95%CI+ | |
Women | ||||||||||||||||
Physical exercise frequency | ||||||||||||||||
Never | 447 | 34.5% | 1.91 | 1.68 | 2.17 | 1.78 | 1.54 | 2.05 | 30 | 2.3% | 2.53 | 2.05 | 3.13 | 1.99 | 1.57 | 2.51 |
Less than once a week | 1200 | 29.6% | 1.53 | 1.40 | 1.66 | 1.39 | 1.27 | 1.53 | 65 | 1.6% | 1.58 | 1.33 | 1.86 | 1.24 | 1.03 | 1.49 |
Once a week | 1417 | 25.0% | 1.21 | 1.11 | 1.31 | 1.17 | 1.07 | 1.27 | 51 | 0.9% | 1.08 | 0.91 | 1.27 | 0.96 | 0.81 | 1.15 |
2–3 times per week | 3396 | 21.7% | 1.01 | 0.94 | 1.08 | 0.95 | 0.89 | 1.02 | 142 | 0.9% | 0.97 | 0.85 | 1.11 | 0.89 | 0.77 | 1.03 |
Almost every day | 1651 | 21.6% | 1.00 | – | – | 1.00 | – | – | 67 | 0.9% | 1.00 | – | – | 1.00 | – | – |
Physical exercise intensity | ||||||||||||||||
I take it easy without breaking into a sweat or losing my breath | 1757 | 28.2% | 1.21 | 1.09 | 1.34 | 1.27 | 1.13 | 1.41 | 83 | 1.3% | 1.13 | 0.94 | 1.37 | 1.06 | 0.86 | 1.30 |
I push myself so hard that I lose my breath and break into a sweat | 5193 | 21.8% | 0.86 | 0.78 | 0.94 | 0.87 | 0.79 | 0.96 | 201 | 0.8% | 0.67 | 0.57 | 0.80 | 0.69 | 0.58 | 0.83 |
I push myself to near-exhaustion | 688 | 24.5% | 1.00 | – | – | 1.00 | – | – | 41 | 1.5% | 1.00 | – | – | 1.00 | – | – |
Physical exercise duration | ||||||||||||||||
Less than 15 min | 150 | 28.8% | 1.38 | 1.13 | 1.68 | 1.35 | 1.08 | 1.68 | 10 | 1.9% | 1.49 | 1.05 | 2.11 | 1.20 | 0.80 | 1.81 |
15–29 min | 972 | 29.5% | 1.43 | 1.31 | 1.56 | 1.48 | 1.34 | 1.63 | 41 | 1.2% | 1.34 | 1.13 | 1.58 | 1.28 | 1.07 | 1.54 |
30 min to 1 h | 4181 | 22.3% | 0.98 | 0.92 | 1.04 | 1.00 | 0.94 | 1.06 | 167 | 0.9% | 0.85 | 0.75 | 0.95 | 0.85 | 0.75 | 0.97 |
More than 1 h | 2338 | 22.7% | 1.00 | – | – | 1.00 | – | – | 107 | 1.0% | 1.00 | – | – | 1.00 | – | – |
Men | ||||||||||||||||
Physical exercise frequency | ||||||||||||||||
Never | 134 | 15.2% | 1.92 | 1.55 | 2.38 | 1.66 | 1.31 | 2.09 | 18 | 2.0% | 2.01 | 1.36 | 2.95 | 1.85 | 1.23 | 2.80 |
Less than once a week | 306 | 14.5% | 1.82 | 1.54 | 2.14 | 1.66 | 1.39 | 1.97 | 30 | 1.4% | 2.13 | 1.59 | 2.86 | 2.05 | 1.50 | 2.81 |
Once a week | 234 | 10.8% | 1.29 | 1.09 | 1.54 | 1.22 | 1.01 | 1.47 | 21 | 1.0% | 1.49 | 1.09 | 2.05 | 1.36 | 0.96 | 1.92 |
2–3 times per week | 584 | 9.6% | 1.14 | 0.99 | 1.31 | 1.10 | 0.95 | 1.28 | 56 | 0.9% | 1.24 | 0.96 | 1.61 | 1.20 | 0.90 | 1.59 |
Almost every day | 347 | 8.5% | 1.00 | – | – | 1.00 | – | – | 20 | 0.5% | 1.00 | – | – | 1.00 | – | – |
Physical exercise intensity | ||||||||||||||||
I take it easy without breaking into a sweat or losing my breath | 313 | 15.0% | 1.67 | 1.40 | 2.01 | 1.62 | 1.33 | 1.96 | 30 | 1.4% | 1.66 | 1.23 | 2.25 | 1.63 | 1.17 | 2.26 |
I push myself so hard that I lose my breath and break into a sweat | 920 | 9.3% | 0.98 | 0.84 | 1.14 | 1.00 | 0.85 | 1.17 | 72 | 0.7% | 0.78 | 0.60 | 1.01 | 0.80 | 0.60 | 1.07 |
I push myself to near-exhaustion | 232 | 9.6% | 1.00 | – | – | 1.00 | – | – | 25 | 1.0% | 1.00 | – | – | 1.00 | – | – |
Physical exercise duration | ||||||||||||||||
Less than 15 min | 52 | 18.2% | 2.28 | 1.67 | 3.12 | 2.11 | 1.50 | 2.97 | 9 | 3.1% | 2.33 | 1.37 | 3.94 | 1.61 | 0.86 | 3.03 |
15–29 min | 177 | 14.1% | 1.68 | 1.41 | 2.01 | 1.80 | 1.49 | 2.18 | 11 | 0.9% | 1.72 | 1.26 | 2.36 | 2.03 | 1.46 | 2.83 |
30 min to 1 h | 619 | 10.5% | 1.21 | 1.07 | 1.36 | 1.19 | 1.05 | 1.35 | 54 | 0.9% | 1.23 | 0.99 | 1.52 | 1.32 | 1.05 | 1.66 |
More than 1 h | 615 | 8.9% | 1.00 | – | – | 1.00 | – | – | 53 | 0.8% | 1.00 | – | – | 1.00 | – | – |