Table 4

Decline in FEV₁ (ml/year) in relation to a dampness score, stratified by sex

	Males (N=2867)			Females (N=2886)
	n	Coefficient (95% CI)^*	p Value	n	Coefficient (95% CI)^*	p Value
Dampness score
0	1473	−27.87 (ref.)		1398	−22.05 (ref.)
1	668	1.76 (−1.36 to 4.88)	0.268	666	−2.41 (−4.88 to 0.06)	0.056
2	411	1.28 (−2.52 to 5.07)	0.509	455	−0.44 (−3.30 to 2.43)	0.766
3 or more	315	0.83 (−3.41 to 5.07)	0.700	367	−4.34 (−7.48 to −1.19)	0.007
Trend		0.34 (−0.77 to 1.46)	0.545		−0.90 (−1.71 to −0.08)	0.032

↵* Fixed adjusted for mid-age, mid-age², height, mid-BMI, change in BMI and smoking category defined according to both ECRHSI and ECRHSII, and centre as random effect.
BMI, body mass index; ECHRS, European Community Respiratory Health Survey; FEV₁, forced expiratory volume in 1 s.