Table 3 The effect of early or late smoking on prognosis in COPD patients (after adjusting smoking index)
From: Early smoking lead to worse prognosis of COPD patients: a real world study
Variables | Early smoking (n = 149) | Late smoking (n = 149) | P-value |
|---|---|---|---|
Number of mild AEs one year after discharge, times | 0(0,0) | 0(0,0) | 0.904 |
Number of AECOPDs one year after discharge, times | 1(0,2) | 1(0,2) | 0.660 |
Incidence of death within one year after discharge(%) | 10.1 | 4.7 | 0.076 |
Incidence of death within 3 years after discharge(%) | 24.2 | 11.4 | 0.004 |
Incidence of death more than 3 years after discharge(%) | 32.9 | 15.4 | < 0.001 |