Role of the Promoter Polymorphism IL-6 −174G/C in Dermatomyositis and Systemic Lupus Erythematosus

Table 1

Demographic and clinical data.

Disease	DM		SLE
Demographic parameters	Female/male	22/13	Female/male	43/9
	Age, mean ± SD years	52±14.7	Age, mean ± SD years	40±12.4
Clinical parameters	Cutaneous disease	27 (77.1%)	Malar rash	34 (65.4%)
	Muscle weakness	28 (80.0%)	Discoid rash	9 (17.3%)
	Elevated muscle enzymes	19 (54.3%)	Arthritis	34 (65.4%)
	EMG findings	20 (57.1%)	Oral ulcer	3 (5.8%)
	Photosensitivity	21 (60.0%)	Photosensitivity	30 (57.7%)
	Immunological disease	9 (25.7%)	Serositis	11 (21.2%)
			Renal disease	52 (100%)
			Neurological disease	10 (19.2%)
			Haematological disease	20 (38.5%)
			Immunological disease	32 (61.5%)
			ANA	36 (69.2%)