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. 2017 Jan 27;12:435–442. doi: 10.2147/COPD.S118106

Table 2.

The factors influencing FEV1% predicted decline in the mild COPD group

Variables P (univariate) OR (95% CI; univariate) P-value* OR (95% CI)*
Age group 3-1 0.342 0.306 (0.029, 3.169)
Age group 3-2 0.619 0.802 (0.211, 3.043)
Gender 2-1 0.134 0.375 (0.104, 1.352)
BMI 0.130 1.196 (0.949, 1.508)
Exposure 2-1 0.536 1.594 (0.364, 6.979)
Family history 2-1 0.462 0.431 (0.046, 4.069)
CAT 2-1 0.055 3.714 (0.973, 14.177) 0.033 5.310 (1.141, 24.718)
mMRC 2-0 0.929 0.842 (0.128, 5.561)
mMRC 2-1 0.857 0.800 (0.102, 6.249)
Smoking years 2 0.318 0.983 (0.951, 1.016)
EI 2-1 0.035 4.140 (1.104, 15.521) 0.023 5.681 (1.274, 25.325)

Note:

*

Multivariate logistic regression.

Abbreviations: FEV1, forced expiratory volume in the first second of expiration; OR, odds ratio; CI, confidence interval; BMI, body mass index; CAT, COPD Assessment Test; mMRC, modified British Medical Research Council; EI, Emphysema Index.