Table 7

Prevalence of the different clinical and serological features among the two disease subsets

Manifestation (%)	lSSc	dSSc
1 Generalised complaints	53	60
2 Joints/tendons	70	88
Tendon rubs	6	23
Myositis	5	6
Myalgia	20	24
Muscle weakness	21	27
Arthralgia	51	60
Arthritis	17	17
Flexion contractures	16	46
Acro-osteolysis	16	29
3 Skin	100	100
Scleredema	56	51
Skin sclerosis	94	95
Melanoderma	23	51
Telangiectasia	65	68
Calcinosis	29	22
Atrophic skin ulcers	38	43
Vasculitic lesions	5	9
Sicca syndrome^7-150	28	25
4 Heart/lung	90	93
Dyspnoea	58	67
Interstitial involvement (x ray)	67	72
Reduced FVC^7-151	16	44
Reduced Tlco ^7-151	45	58
Heart failure	3	3
5 Peripheral vascular system	96	97
Arterial hypertension	19	17
Raynaud's phenomenon	92	91
Digital pitting	62	62
Digital necrosis	13	22
6 Gastrointestinal apparatus	76	81
Diarrhoea	11	10
7 Nervous system	26	19
Headache/trigeminal neuropathy	11	5
Depression	16	15
8 Routine laboratory tests
ESR^7-151 >30 mm/1st h	25	27
High CRP^7-151	11	19
High LDH^7-151	10	12
High CK^7-151	7	9
Low C3/C4	13	16

↵7-150 Both xerostomia and xerophthalmia.
↵7-151 FVC = forced vital capacity; Tlco = carbon monoxide transfer factor; ESR = erythrocyte sedimentation rate; CRP = C reactive protein; LDH = lactic dehydrogenase; CK = creatine kinase.