Table 3.

Multinomial logistic regression analysis of onychoscopic features in SLE, DM, and SSc patients.

Onychoscopic features	SLE vs. DM	SLE vs. SSc	DM vs. SSc
Tortous capillaries	OR: 0.25	OR: 0.16	OR: 0.62
	p-Value: 0.22	p-Value: 0.095	p-Value: 0.73
	95% CI: 0.02–2.24	95% CI: 0.01–1.37	95% CI: 0.03–10.27
Bushy capillaries	OR: 0.52	OR: 4.10	OR: 7.82
	p-Value: 0.16	p-Value: 0.002*	p-Value: <0.001*
	95% CI: 0.21–1.29	95% CI: 1.71–9.81	95% CI: 2.86–21.38
Elongated capillaries	OR: 2.76	OR: 3.35	OR: 1.21
	p-Value: 0.14	p-value: 0.049*	p-Value: 0.80
	95% CI: 0.71–10.66	95% CI: 1.005–11.20	95% CI: 0.25–5.82
Subpapillary plexus	OR: 2.75	OR: 5.78	OR: 2.10
	p-Value: 0.03*	p-Value: <0.001*	p-Value: 0.17
	95% CI: 1.07–7.02	95% CI: 2.29–14.58	95% CI: 0.71–6.18
Hemorrhage	OR: 0.43	OR: 0.21	OR: 0.50
	p-Value: 0.10	p-Value: 0.001*	p-Value: 0.14
	95% CI: 0.15–1.18	95% CI: 0.09–0.52	95% CI: 0.20–1.25
Enlarged capillaries	OR: 0.45	OR: 0.29	OR: 0.65
	p-Value: 0.08	p-Value: 0.004*	p-Value: 0.38
	95% CI: 0.18–1.11	95% CI: 0.12–0.67	95% CI: 0.24–1.71
Disorganized capillaries	OR: 0.12	OR: 0.42	OR: 3.36
	p-Value: 0.053	p-Value: 0.14	p-Value: 0.27
	95% CI: 0.01–1.02	95% CI: 0.13–1.32	95% CI: 0.37–30.25
Avascular areas	OR: 0.21	OR: 0.12	OR: 0.61
	p-Value: 0.05	p-Value: 0.009*	p-Value: 0.63
	95% CI: 0.04–1.00	95% CI: 0.02–0.60	95% CI: 0.08–4.57
Density	OR: 1.21	OR: 1.74	OR: 0.22
	p-Value: 0.09	p-value: <0.001*	p-Value: 0.52
	95% CI: 0.91–2.42	95% CI: 1.12–2.35	95% CI: −0.48 to 0.93

DM, dermatomyositis; OR, odds ratio; SLE, systemic lupus erythematosus; SSc, systemic sclerosis; 95% CI, 95% confidence interval.

^*Statistically significant.