Table 3.

Independent effect of hypertension, BMI and CRP on lung function shown as the difference in% predicted values (and 95% CI)

	FEV1 % pred	FVC% pred
Hypertension
No	0	0
Yes	−3.8 (−6.3, −1.2)	−2.6 (−4.7, −0.4)
BMI kg/m2
<20	−8.6 (−17, 0.3)	−2.1 (−9.6, 5.3)
20–25	0	0
25–30	1.2 (−1.6, 4.0)	−1.5 (−3.8, 0.9)
>30	−1.8 (−5.0, 1.3)	−5.9 (−8.5, −3.2)
CRP mg/L
<0.75	0	0
0.75–1.27	−3.2 (−6.4, −0.04)	−2.9 (−5.5, −0.2)
1.27–3.25	−3.7 (−6.9, −0.5)	−3,9 (−6.6, −1.2)
>3.25	−6.2 (−9.5, −2.9)	−7.0 (−10, −4.2)

The effect is adjusted for the variables in the table and age, sex, current smoking and pack-years.