. Author manuscript; available in PMC: 2011 Aug 5.

Published in final edited form as: Hepatology. 2005 Nov;42(5):1194–1202. doi: 10.1002/hep.20907

Table 4.

Anthropometric and Lifestyle Variables in PBC Cases and Controls

	Cases (%) (n = 1,032)	Controls (%) (n = 1,041)	Unadjusted P Value
Mean height (in)	64 ± 3	65 ± 3	.0154
Mean current weight (lb)	159 ± 37	166 ± 41	.0006
Mean weight at age 25 (lb)	135 ± 27	135 ± 30	NS
Smoking history
Smoked >100 cigarettes/lifetime	619 (60%)	557 (54%)	.0034
Currently smoking	97 (16%)	179 (32%)	<.0001
Hours/week exposure to smoke at home	0.54 ± 2.58	1.14 ± 3.95	<.0001
Hours/week exposure to smoke at work	0.17 ± 1.28	0.23 ± 1.64	.0933
Alcohol
≥12 drinks/lifetime	932 (90%)	933 (90%)	NS
≥12 drinks/past 12 months	291 (28%)	516 (50%)	<.0001
Miscellaneous
Hair dye use (times/year)	38 ± 50	35 ± 50	.0435
Nail polish use^* (times/year)	29 ± 65	22 ± 53	<.0001

NOTE. Continuous variables are expressed as mean ± standard deviation. Only P values beyond the .2 level for the comparison between patient groups are reported.

Abbreviation: NS, nonsignificant.

Referred to female cases and controls only.