Table 3.

C-reactive protein (CRP) basal levels according to the haplotype of CRP gene. CRP values are median (25th percentile, 75th percentile).

Haplotype		CRP Levels mg/l	p^a	p^b
Ht1[TACGCA]	TACGCA (n = 172)	0.2 (0.0, 0.4)
	− (n = 124)^*	0.3 (0.1, 0.5)	0.006	NS
Ht2[TGCGCG]	TGCGCG (n = 29)	0.4 (0.3, 0.5)
	− (n = 267)^*	0.3 (0.2, 1.0)	NS	NS
Ht3[CAAGCG]	CAAGCG (n = 43)	0.4 (0.2, 0.5)
	− (n = 253)^*	0.2 (0.0, 0.4)	NS	NS
Ht4[TATGTG]	TATGTG (n = 23)	0.3 (0.2, 0.5)
	− (n = 273)^*	0.2 (0.0, 0.5)	0.035	NS
Ht5[TACCCA]	TACCCA (n = 12)	0.1 (0.0, 0.3)
	− (n = 284)^*	0.3 (0.1, 0.5)	NS	NS
Ht6[TACGCG]	TACGCG (n = 6)	0.8 (0.2, 1.2)
	− (n = 290)^*	0.3 (0.0, 0.5)	NS	NS
Ht7[TACGTG]	TACGTG (n = 4)	0.2 (0.0, 0.4)
	− (n = 292)^*	0.3 (0.1, 0.5)	NS	NS

↵a Logistic regression analysis to control for disease duration as a covariable.
↵b Bonferroni adjustment for multiple comparisons. NS: not significant.
↵* SLE patients who did not have haplotype.