Table 1.
Demographics (statistically significant postulated relationships in bold)
| RDI categories (h−1) | ||||||
|---|---|---|---|---|---|---|
| Overall | 0–5 | 5–15 | 15–30 | 30+ | P-value* | |
| Men | 221 | 57 | 53 | 60 | 51 | – |
| RDI (h−1) | 19.1 (17.0) | 2.9 (1.4) | 9.4 (2.8) | 21.3 (4.1) | 44.5 (13.1) | < 0.001 |
| Age (years) | 62.2 (6.9) | 61.0 (7.2) | 62.8 (7.2) | 62.0 (6.7) | 63.1 (6.4) | 0.41 |
| BMI (kg m−2) | 29.5 (3.6) | 26.6 (2.5) | 30.4 (3.4) | 30.6 (3.5) | 30.4 (3.3) | < 0.001 |
| SBP (mmHg) | 121.1 (10.3) | 120.1 (10.6) | 124.0 (8.7) | 123.0 (10.4) | 121.3 (11.0) | 0.18 |
| DBP (mmHg) | 74.0 (7.0) | 72.5 (7.9) | 74.7 (7.1) | 73.2 (7.9) | 75.8 (7.5) | 0.11 |
| Women | 67 | 17 | 14 | 18 | 18 | – |
| RDI (h−1) | 20.0 (16.4) | 2.8 (1.5) | 10.5 (3.5) | 20.6 (3.6) | 43.0 (9.5) | < 0.001 |
| Age (years) | 64.0 (5.9) | 62.8 (6.2) | 63.4 (6.0) | 65.7 (4.7) | 63.7 (6.7) | 0.51 |
| BMI (kg m−2) | 33.1 (5.3) | 33.2 (3.9) | 32.4 (6.0) | 31 .5 (4.6) | 35.1 (6.0) | 0.20 |
| SBP (mmHg) | 119.8 (10.3) | 118.6 (10.8) | 117.1 (8.8) | 123.8 (11.0) | 119.0 (10.0) | 0.27 |
| DBP (mmHg) | 71.0 (6.4) | 74.3 (8.2) | 69.1 (6.4) | 70.7 (4.1) | 69.6 (5.7) | 0.08 |
RDI, respiratory disturbance index; BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure. Mean (SD) for continuous variables and counts for gender.
*
P-values are from one-way anova, and if it is significant, all pair-wise comparisons to control are significant (Holm–Sidak).