Table 3 Odds ratios for low muscle mass prevalence according to training period of RT and sex
n | RT levels | Crude model OR (95% CI) | Adjusted model OR (95% CI) | |||
|---|---|---|---|---|---|---|
Frequency | Time | Training period | ||||
(days/week) | (min/week) | (months) | ||||
Total | ||||||
Non-RT | 112,219 | 0.00 ± 0.00 | 0.00 ± 0.00 | 0.00 ± 0.00 | 1 (reference) a | 1 (reference) a |
<12 months | 2,386 | 3.52 ± 1.56 | 206.23 ± 170.38 | 4.94 ± 2.95 | 0.85 (0.75–0.97)* | 0.86 (0.72–1.04) |
12–23 months | 9,496 | 4.12 ± 1.72 | 248.54 ± 191.56 | 12.04 ± 0.47 | 0.90 (0.84–0.96)** | 0.81 (0.74–0.89)**** |
≥24 months | 2,238 | 3.90 ± 1.53 | 246.22 ± 172.81 | 101.55 ± 86.95 | 0.63 (0.54–0.73)**** | 0.59 (0.47–0.72)**** |
Men | ||||||
Non-RT | 38,696 | 0.00 ± 0.00 | 0.00 ± 0.00 | 0.00 ± 0.00 | 1 (reference)a | 1 (reference)a |
<12 months | 916 | 3.46 ± 1.61 | 185.28 ± 162.98 | 5.32 ± 3.02 | 0.83 (0.70–0.98)* | 0.92 (0.72–1.19) |
12–23 months | 4,459 | 4.24 ± 1.83 | 238.89 ± 196.05 | 12.02 ± 0.35 | 0.72 (0.66–0.78)**** | 0.80 (0.71–0.91)*** |
≥24 months | 1,005 | 4.02 ± 1.64 | 247.58 ± 184.12 | 121.34 ± 105.49 | 0.52 (0.43–0.62)**** | 0.57 (0.43–0.75)**** |
Women | ||||||
Non-RT | 73,523 | 0.00 ± 0.00 | 0.00 ± 0.00 | 0.00 ± 0.00 | 1 (reference) a | 1 (reference) a |
<12 months | 1,470 | 3.56 ± 1.52 | 219.29 ± 173.61 | 4.70 ± 2.88 | 0.75 (0.60–0.94)* | 0.78 (0.58–1.04) |
12–23 months | 5,037 | 4.02 ± 1.62 | 257.08 ± 187.11 | 12.05 ± 0.55 | 0.84 (0.74–0.94)** | 0.82 (0.71–0.95)** |
≥24 months | 1,233 | 3.81 ± 1.43 | 245.10 ± 163.08 | 85.42 ± 63.85 | 0.58 (0.44–0.77)*** | 0.60 (0.43–0.83)** |