Table 1 Baseline characteristics of enrolled participants
|  | Patient (n = 38) | Control (n = 38) | P |
|---|---|---|---|
Male, n (%) | 3 (8%) | 3 (8%) | 1 |
Age (years), mean ± SD | 51.3 ± 12.6 | 52.2 ± 12.9 | 0.76 |
SSc characteristics | |||
 Disease duration(years), mean ± SD | 11.2 ± 6.6 |  |  |
 mRSS, mean ± SD | 4.6 ± 3.9 |  |  |
 FVC (actual/predicted, %), mean ± SD | 87.8 ± 17.2 |  |  |
 DLCO SB (%), mean ± SD | 63.7 ± 13.7 |  |  |
 Scl-70, n (%) | 16 (42%) |  |  |
 ANA, n (%) | 33 (87%) |  |  |
 ACA, n (%) | 7(18%) |  |  |
 Pulmonary hypertension, n (%) | 0 |  |  |
GERDQ (< 8:≥ 8) | 17:21 | 38:0 |  |