Table 4. Functional disability and QoL predictors in lcSSc patients.

	B	SE	β	p	95% CI (Factor B)
HAQ
Pain (VAS)	0.083	0.017	0.386	<0.001	0.048-0.118
FVC	-0.011	0.003	-0.271	0.001	[-0.018-(-0.005)]
Disease duration	0.019	0.006	0.255	0.001	0.007-0.031
mRSS	0.028	0.010	0.223	0.006	0.008-0.048
	Model 1 R2=0.24 (p<0.001); Model 2 R2=0.18 (p<0.001)
SHAQ
Pain (VAS)	0.086	0.016	0.448	0.000	0.054-0.119
FVC	-0.007	0.003	-0.173	0.042	-0.013-0.000
	Model 1 R2=0.24 (p<0.001); Model 2 R2=0.03 (p=0.042)
DHI
Pain (VAS)	3.083	0.409	0.536	<0.001	2.273-3.894
ESR	0.341	0.075	0.322	<0.001	0.192-0.490
	Model 1 R2=0.35 (p<0.001); Model 2 R2=0.10 (p<0.001)
SF-36 PCS
Pain (VAS)	-4.674	0.711	-0.499	0.000	[-6.082-(-3.265)]
FVC	0.487	0.144	0.257	0.001	0.202-0.772
BMI	-1.010	0.377	-0.200	0.008	[-1.757-(-0.263)]
	Model 1 R2=0.33 (p<0.001); Model 2 R2=0.09 (p=0.001)
SF-36 MCS
Pain (VAS)	-3.793	0.715	-0.441	0.000	[-5.211-(-2.375)]
FVC	0.327	0.145	0.188	0.026	0.040-0.614
BMI	-0.813	0.379	-0.175	0.034	[-1.565-(-0.061)]
	Model 1 R2=0.25 (p<0.001); Model 2 R2=0.05 (p=0.018)
QoL: Quality of life; lcSSc: Limited cutaneous systemic sclerosis; CI: Confidence interval; HAQ: Health Assessment Questionnaire; VAS: Visual Analog Scale; FVC: Forced vital capacity; mRSS: Modified Rodnan skin score; SHAQ: Scleroderma HAQ; DHI: Duruöz Hand Index; SF-36: Short form 36; PCS: Physical Component Score; BMI: Body mass index; MCS: Mental Component Score.