Table 1
Numbers and odds ratios (OR) for use of duvets
Use of duvets
Cases
Controls
Univariate OR (95% CI)
Multivariate OR (95% CI)
No
%
No
%
No
162
42.0
856
54.3
1.00
1.00
Yes
224
58.0
719
45.7
1.65 (1.31 to 2.08)
1.04 (0.77 to 1.38)
CI, confidence interval.