OSA categories | Male (n=13 539, c=228) | Female (n=5629, c=160) | ||
Adjusted OR# (95% CI) | p-value | Adjusted OR# (95% CI) | p-value | |
AHI (continuous) | 1.00 (0.9–1.06) | 0.82 | 1.09 (1.01–1.17) | 0.03 |
AHI ≥5 versus <5 | 0.96 (0.65–1.54) | 0.88 | 1.79 (1.09–2.95) | 0.02 |
AHI ≥15 versus <15 | 0.85 (0.6–1.18) | 0.34 | 1.58 (1.06–2.33)** | 0.02 |
AHI ≥30 versus <30 | 0.88 (0.63–1.23) | 0.46 | 1.51 (0.99–2.29)** | 0.054 |
Mild (AHI 5–14.9) versus 0–4.9 | 1.07 (0.63–1.81) | 0.8 | 1.5 (0.85–2.63) | 0.16 |
Moderate (AHI 15.0–29.9) versus 0–4.9 | 0.86 (0.5–1.46) | 0.57 | 1.8 (1–3.25) | 0.05 |
Severe (AHI ≥30) versus 0–4.9 | 0.87 (0.52–1.45) | 0.59 | 2.15 (1.19–3.87)** | 0.01 |
AHI (quartiles)¶ 7–19.4 versus 0–6.9 | 0.95 (0.59–1.52) | 0.8 | 1.04 (0.6–1.74) | 0.88 |
AHI 19.5–41.3 versus 0–6.9 | 0.85 (0.53–1.36) | 0.5 | 1.68 (1.005–2.8) | 0.05 |
AHI >41.4 versus 0–6.9 | 0.99 (0.6–1.6) | 0.96 | 1.5 (0.83–2.75)** | 0.17 |
ODI (continuous) | 0.92 (0.82–1.00) | 0.06 | 1.09 (2.45–5.41)** | 0.01 |
ODI ≥5 versus <5 | 1.46 (0.99–2.15) | 0.05 | 0.7 (0.44–1.08) | 0.11 |
ODI ≥10 versus <10 | 0.63 (0.44–0.88) | 0.008 | 1.3 (0.86–1.95) | 0.21 |
ODI (quartiles)¶ 4.5–14 versus 0–4.4 | 1.02 (0.64–1.62) | 0.93 | 1.27 (0.78–2.17) | 0.37 |
ODI 14.1–36 versus 0–4.4 | 0.73 (0.45–1.18) | 0.19 | 1.71 (0.98–2.97) | 0.06 |
ODI >36.1 versus 0–4.4 | 0.7 (0.4–1.2) | 0.2 | 1.93 (1.04–3.58)** | 0.04 |
CT90% (minutes, continuous) | 1.01 (0.98–1.04) | 0.44 | 1.03 (1.01–1.062) | 0.01 |
CT90% (minutes) (quartiles)¶ 0.5–7.5 versus 0–0.4 | 1.01 (0.48–2.1) | 0.98 | 0.63 (0.26–1.55) | 0.3 |
CT90% (minutes) 7.6–48.1 versus 0–0.4 | 1.09 (0.52–2.29) | 0.82 | 2.035 (0.97–4.26)* | 0.06 |
CT90% (minutes) >48.2 versus 0–0.4 | 1.02 (0.46–2.28) | 0.95 | 2.16 (0.95–4.92)* | 0.07 |
CT90% (% of recording time) | 1.04 (0.9–1.21) | 0.55 | 1.17 (1.04–1.32)* | 0.01 |
CT90% (% of recording time) (quartiles)¶ 0.125–1.69 versus 0–0.124 | 1.04 (0.49–2.2) | 0.92 | 0.59 (0.23–1.51) | 0.3 |
CT90% (% of recording time) 1.7–10.98 versus 0–0.124 | 1.21 (0.58–2.52) | 0.62 | 2.25 (1.08–4.67) | 0.03 |
CT90% (% of recording time) 10.99–100 versus 0–0.124 | 1.32 (0.61–2.86) | 0.5 | 2.27 (1.01–5.12) | 0.05 |
For continuous variables, odds ratios are presented per 10-unit increase. c: cancer patients; ODI: oxygen desaturation index; CT90%: time with oxygen saturation below 90%. #: adjusted for age, body mass index, smoking and alcohol. ¶: different quartiles in polysomnography (PSG) or polygraphy (PG) are as follows. AHI quartiles PSG: first quartile: 0–11.4 per h; second: 11.41–25.6; third: 25.61–49; fourth: >49.1. ODI quartiles PSG: first quartile: 0–5.4 per h; second: 5.41–17.5; third: 17.51–42.1; fourth: >42.11. CT90% (in minutes) quartiles PSG: first quartile: 0–0.6 min; second: 0.61–8.2; third: 8.21–53.3; fourth: >53.31. CT90% (proportion of recording time) quartiles PSG: first quartile: 0–0.137%; second: 0.138–1.86%; third: 1.87–12.18%; fourth: 12.19–100%. AHI quartiles PG: first quartile: 0–4.3 per h; second: 4.31–13.1; third: 13.2–32.1; fourth: >32.12. ODI quartiles PG: first quartile: 0–3.7 per h; second: 3.71–11; third: 11.1–29; fourth: >29.1. CT90% (in minutes) quartiles PG: first quartile: 0–0.5 min; second: 0.51–6.21; third: 6.22–41; fourth: >41.1. CT90% (proportion of recording time) quartiles PG: first quartile: 0–0.1%; second: 0.11–1.47%; third: 1.48–9.33%; fourth: 9.34–100%. *: statistically significant in PSG. **: statistically significant in PG (refer to the text for odds ratios).