Table 2.

Relative weighting of reduce classification criteria.

Criteria	Sub-criteria	Weight
Skin thickening of the fingers (count only one of these 2)	Distal to PIP only	14
	Whole Finger, distal to MCP	22
Finger tip lesions (count only one of these 3)	Digital Tip Ulcers	9
	Pitting Scars	16
	Clinical evidence of acro-osteolysis	21
Finger flexion contractures		16
Telangiectasia		10
Abnormal nailfold capillaries		10
Puffy fingers		5
Calcinosis		12
Raynaud’s phenomenon		13
Tendon or bursal friction rubs		21
Interstitial lung disease (ILD) or pulmonary fibrosis (PF)		14
Pulmonary hypertension (without ILD/PF)		11
Renal crisis		11
Esophageal dilatation		7
Scleroderma related antibodies (any of anti-centromere, anti-topoisomerase I [anti-Scl 70], anti-RNA polymerase III)		15
TOTAL SCORE:

‘Skin thickening sparing the fingers’ is an exclusion criterion. If present, the use of the SSc classification criteria should not proceed further.

‘Skin thickening of the fingers and proximal to the metacarpophalangeal joints’ is an absolute criterion. If present, the patient could be classified as SSc, and further use of the classification criteria is not required.