Table 2.

Variation of uric acid according to the number of cigarettes smoked and consumption duration

	Cigarettes smoked/day		p value	Consumption duration (years)		p value
	<20	≥20		≤5	>5
Uric acid <200 μmol/L
M (n = 64)	141 ± 25	96 ± 27	0.004	140 ± 41	99 ± 65	0.01
W (n = 8)	185 ± 17	135 ± 27	0.03	175 ± 20	130 ± 28	0.04
Uric acid >200 μmol/L
M (n = 81)	269 ± 42	268 ± 52	0.96	271 ± 50	267 ± 45	0.69
W (n = 9)	276 ± 72	229 ± 25	0.38	304 ± 78	228 ± 22	0.39
χ2, p	22.4; p < 10−7			3.89; p = 0.04

M men, W women