From: Impaired lung function and mortality in Eastern Europe: results from multi-centre cohort study
Type of groups | No. of persons | No. of deaths | Person-years of follow-up | Deaths per 100 person-years (95% CI) | Model 1 adjusted HR† (95% CI) | Model 2 Adjusted HR‡ (95% CI) |
---|---|---|---|---|---|---|
FEV1% predicted impairment groups (NHANES)* | ||||||
Normal | 20,506 | 3632 | 267,620 | 1.36 (1.31–1.40) | 1.00 | 1.00 |
Mild | 2452 | 700 | 31,350 | 2.23 (2.07–2.40) | 1.55 (1.43–1.68) | 1.25 (1.15–1.37) |
Moderate | 1068 | 394 | 12,879 | 3.06 (2.77–3.38) | 2.01 (1.80–2.24) | 1.51 (1.35–1.69) |
Moderate-severe | 487 | 219 | 5465 | 4.01 (3.51–4.57) | 2.51 (2.17–2.91) | 1.82 (1.58–2.11) |
Severe | 342 | 163 | 3814 | 4.27 (3.67–4.98) | 2.55 (2.16–3.02) | 1.82 (1.54–2.15) |
Very severe | 104 | 69 | 961 | 7.18 (5.67–9.09) | 4.44 (3.36–5.87) | 3.35 (2.62–4.27) |
FEV1 impairment groups (Z-score)§ | ||||||
Normal | 21,864 | 4045 | 284,792 | 1.42 (1.38–1.46) | 1.00 | 1.00 |
Mild | 1052 | 315 | 13,302 | 2.37 (2.12–2.64) | 1.65 (1.47–1.85) | 1.27 (1.13–1.43) |
Moderate | 923 | 310 | 11,284 | 2.75 (2.45–3.07) | 1.83 (1.63–2.06) | 1.41 (1.25–1.59) |
Moderate-severe | 523 | 226 | 6002 | 3.77 (3.30–4.29) | 2.48 (2.16–2.86) | 1.81 (1.57–2.09) |
Severe | 471 | 214 | 5367 | 3.99 (3.49–4.56) | 2.55 (2.20–2.95) | 1.87 (1.62–2.16) |
Very severe | 126 | 67 | 1342 | 4.99 (3.93–6.35) | 4.50 (3.45–5.86) | 3.42 (2.67–4.37) |