Table 2.
Multivariate regression model analysis among HRR and lung function paraments.
| Characteristic | Model 1 | Model 2 | Model 3 | Model 4 | ||||
|---|---|---|---|---|---|---|---|---|
| β (95% CI) | p value | β (95% CI) | p value | β (95% CI) | p value | β (95% CI) | p value | |
| FVC | 0.73 (0.67, 0.79) | < 0.001 | 0.61 (0.55, 0.67) | < 0.001 | 0.58 (0.52, 0.64) | < 0.001 | 0.11 (0.01, 0.21) | 0.028 |
| FEV1 | 0.70 (0.64, 0.77) | < 0.001 | 0.14 (0.08, 0.20) | < 0.001 | 0.13 (0.07, 0.19) | < 0.001 | 0.22 (0.10, 0.33) | < 0.001 |
| PEF | 0.63 (0.56, 0.69) | < 0.001 | 0.14 (0.08, 0.21) | < 0.001 | 0.15 (0.08, 0.21) | < 0.001 | 0.24 (0.11, 0.36) | < 0.001 |
| PEF 25–75% | 0.63 (0.50, 0.75) | < 0.001 | 0.19 (0.06, 0.32) | 0.003 | 0.23 (0.10, 0.36) | < 0.001 | 0.49 (0.23, 0.74) | < 0.001 |
Crude Model: no covariates were adjusted. Model 2: sex, age, and race/ethnicity were adjusted. Model 3: Model 2 plus BMI was adjusted. Model 4: Model 3 plus education level, marital status, PIR, drink history, smoking history, ALT, AST, creatinine, uric acid, glycohemoglobin, monocyte number, HGB, and waist circumference. HRR, hemoglobin-to-red blood cell distribution width ratio, CI, confidence interval; PIR, poverty-income ratio; BMI, body mass index. ALT, alanine aminotransferase; AST, aspartate aminotransferase.