Table 3.
Main and interactive effects of cumulative high-altitude residence duration, oxygen supplementation frequency/duration, and frequency of returning to low-altitude areas on sleep quality.
| Oxygen supplementation frequency and frequency of returning to low-altitude areas as moderators | ||||
|---|---|---|---|---|
| Predictor | B | SE | β | p |
| Control variables | ||||
| Age | 0.16 | 0.03 | 0.19 | <0.001 |
| Chronic disease history | 1.88 | 0.31 | 0.16 | <0.001 |
| First-time high-altitude exposure | 0.04 | 0.20 | 0.01 | 0.858 |
| Main effects | ||||
| Cumulative high-altitude residence duration | 0.05 | 0.08 | 0.02 | 0.540 |
| Oxygen supplementation frequency | −0.44 | 0.06 | −0.21 | <0.001 |
| Frequency of returning to low-altitude areas | 0.02 | 0.13 | −0.01 | 0.889 |
| Two-way interactions | ||||
| Cumulative high-altitude residence duration × Oxygen supplementation frequency | −0.06 | 0.05 | −0.03 | 0.251 |
| Cumulative high-altitude residence duration × Frequency of returning to low-altitude areas | 0.11 | 0.10 | 0.03 | 0.405 |
| Oxygen supplementation frequency × Frequency of returning to low-altitude areas | −0.07 | 0.09 | −0.02 | 0.405 |
| Three-way interactions | ||||
| Cumulative high-altitude residence duration × Oxygen supplementation frequency × Frequency of returning to low-altitude areas | −0.11 | 0.07 | −0.05 | 0.104 |
| Oxygen supplementation duration and frequency of returning to low-altitude areas as moderators | ||||
|---|---|---|---|---|
| Predictor | B | SE | β | p |
| Control variables | ||||
| Age | 0.16 | 0.03 | 0.19 | <0.001 |
| Chronic disease history | 1.88 | 0.31 | 0.16 | <0.001 |
| First-time high-altitude exposure | 0.04 | 0.20 | 0.01 | 0.858 |
| Main effects | ||||
| Cumulative high-altitude residence duration | 0.08 | 0.08 | 0.03 | 0.335 |
| Oxygen supplementation duration | −0.41 | 0.08 | −0.14 | <0.001 |
| Frequency of returning to low-altitude areas | 0.002 | 0.13 | 0.00 | 0.990 |
| Two-way interactions | ||||
| Cumulative high-altitude residence duration × Oxygen Supplementation duration | −0.07 | 0.07 | −0.03 | 0.298 |
| Cumulative high-altitude residence duration × Frequency of returning to low-altitude areas | 0.15 | 0.10 | 0.04 | 0.132 |
| Oxygen supplementation duration × Frequency of returning to low-altitude areas | 0.001 | 0.12 | 0.00 | 0.991 |
| Three-way interactions | ||||
| Cumulative high-altitude residence duration × Oxygen supplementation duration × Frequency of returning to low-altitude areas | −0.26 | 0.09 | −0.08 | 0.004 |