Table 2.
Adjusted hazard ratios (aHR) for dementia by midlife pulmonary function modelled continuously and in quintiles
FEV1 (n=26858; 7359 cases) |
FEV2 (n=16289; 3787 cases) |
VC (n=27384; 7518 cases) |
||||
---|---|---|---|---|---|---|
Model 1 HR (95% CI) |
Model 2 HR (95% CI) |
Model 1 HR (95% CI) |
Model 2 HR (95% CI) |
Model 1 HR (95% CI) |
Model 2 HR (95% CI) |
|
Continuous* | 1.15 (1.11, 1.20) | 1.13 (1.09, 1.18) | 1.17 (1.11, 1.23) | 1.13 (1.08, 1.19) | 1.16 (1.12, 1.21) | 1.14 (1.10, 1.18) |
| ||||||
Quintile | ||||||
1- Worst | 1.29 (1.19, 1.39) | 1.24 (1.14, 1.34) | 1.37 (1.22, 1.54) | 1.27 (1.13, 1.43) | 1.34 (1.23, 1.45) | 1.28 (1.17, 1.39) |
2 | 1.19 (1.10, 1.29) | 1.16 (1.08, 1.26) | 1.29 (1.15, 1.44) | 1.24 (1.10, 1.39) | 1.23 (1.13, 1.34) | 1.20 (1.11, 1.30) |
3 | 1.18 (1.09, 1.28) | 1.16 (1.07, 1.26) | 1.15 (1.03, 1.29) | 1.11 (1.00, 1.25) | 1.15 (1.07, 1.24) | 1.13 (1.05, 1.22) |
4 | 1.04 (0.97, 1.13) | 1.04 (0.96, 1.12) | 1.15 (1.03, 1.28) | 1.12 (1.01, 1.25) | 1.08 (1.00, 1.16) | 1.07 (0.99, 1.16) |
5- Best | ref | ref | ref | ref | ref | ref |
Notes:
Continuous midlife pulmonary function was reverse coded such that high values reflect worse pulmonary function. Midlife pulmonary function quintiles estimated separately for men and women. Model 1 adjusts for demographics (age, race/ethnicity, education) and height. Model 2 adjusts demographic, height, midlife health indicator (hypertension, body mass index, smoking status), and late-life health indicator (stroke, diabetes, heart failure).