Table 6.

Risk factor analysis for sAD.

Risk factor	Odds ratio	95% confidence interval	p
Female sex	2.5	0.3699–16.90	.4050
Negativity for Scl-70	1.733	0.2197–13.68	.6214
Risk factor	sAD	No sAD	p
Mean of mRSS before aHSCT	25.00 ± 7.18	23.13 ± 12.19	.7314
Median of relative reduction of mRSS	90.50%	60.00%	.0064
	(IQR, 8.75%)	(IQR, 24.00%)
Mean age at aHSCT (years)	39.49 ± 11.41	48.56 ± 11.27	.0913

Risk factor analysis for secondary autoimmune disorders. For metric scaled variables, means ± standard deviation or medians with interquartile range (IQR) are shown. Ordinal scaled variables are presented as odds ratio with 95% confidence interval. A higher median mRSS reduction by aHSCT was found in the group with onset of sAD. The other investigated variables showed no significant differences between the two groups.

sAD, secondary autoimmune disorders; mRSS, modified Rodnan skin score; aHSCT, autologous hematopoietic stem cell transplant.