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Table 3 Correlations among clinic and laboratory features and PCS and MCS scores in eSSc patients

From: Quality of life as measured by the short-form 36 (SF-36) questionnaire in patients with early systemic sclerosis and undifferentiated connective tissue disease

Clinical and laboratory features

PCS (rho; P)

MCS (rho; P)

Age

−0.15 (0.413)

0.481 (0.060)

Sex F

−0.19 (0.283)

0.007 (0.968)

Disease duration

−0.19 (0.281)

0.0049 (0.979)

History of arthritis

0

0

ESR >20 mm/h

−0.58 (0.0006)

−0.049 (0.793)

Gammaglobulins > 1.5 g/dl

−0.06 (0.723)

0.117 (0.528)

C3 < 80 mg/dl or C4 < 15 mg/dl

0.133 (0.475)

0.112 (0.547)

Low DLCO (<80% of predicted)

0.056 (0.763)

0.142 (0.444)

E/A ration < 1

−0.09 (0.607)

0.027 (0.883)

HAQ-DI

−0.59 (0.0004)

−0.298 (0.103)

Active disease

0

0

  1. PCS = physical component summary score; MCS = mental component summary score; ESR = erythrocyte sedimentation rate; DLCO = carbon monoxide lung diffusion; E/A ratio <1, inverted ratio between early (E)/late (atrial = A) ventricular filling velocity; HAQ-DI = Health assessment questionnaire–disability index.