Table 3.
Multivariate Cox regression analysis of PEF% predicted and the risk of new-onset headache
| Variables | Model 1 | Model2 | Model3 | |||
|---|---|---|---|---|---|---|
| HR (95%CI) | P-value | HR(95%CI) | P-value | HR(95%CI) | P-value | |
| PEF% predicted | 0.68 (0.58, 0.79) | < 0.001 | 0.74 (0.63, 0.86) | < 0.001 | 0.75 (0.64, 0.88) | 0.001 |
| q1 (< 67.0%) | 1 (Ref) | 1 (Ref) | 1 (Ref) | |||
| q2 (67.6%–85.0%) | 0.88 (0.79, 0.98) | 0.022 | 0.90 (0.80, 1.00) | 0.055 | 0.90 (0.80, 1.00) | 0.055 |
| q3 (85.1%–101.9%) | 0.83 (0.74, 0.93) | 0.001 | 0.86 (0.77, 0.97) | 0.012 | 0.87 (0.78, 0.98) | 0.019 |
| q4 (≥ 102.0%) | 0.76 (0.68, 0.85) | < 0.001 | 0.80 (0.71, 0.90) | < 0.001 | 0.80 (0.72, 0.91) | < 0.001 |
| Trend.test | 0.91 (0.88, 0.95) | < 0.001 | 0.93 (0.90, 0.97) | < 0.001 | 0.94 (0.90, 0.97) | < 0.001 |
Model 1 adjusted for age, gender
Model 2 adjusted for age, gender, education, residence, marital status, BMI, smoking status, drinking status, sleep duration, medicine
Model 3 adjusted for age, gender, education, residence, marital status, BMI, smoking status, drinking status, sleep duration, medicine, hypertension, diabetes, heart attack, stroke, kidney disease, depression