Table 2

Baseline surfactant protein D in serum (ng/ml) in smokers and non-smokers and according to gender in patients and controls

RA-patients

Controls


Men

760 (665;1059)

967 (921;1024)

Women

674 (613;759)

852 (818;902)

P-value*

0.09

< 0.001

Smokers

850 (686;1014)

(n = 57)

1187 (1099;1293) (n = 482)

Non-smokers

671 (604;738)

(n = 101)

827 (802;852) (n = 991)

P-value*

0.03

< 0.001


Median [95% CI], *Mann-Whitney U-test

RA, rheumatoid arthritis

Christensen et al. Arthritis Research & Therapy 2010 12:R39   doi:10.1186/ar2948

Open Data