Table 2. Demographic trends in systemic sclerosis (SScl) in the inpatient population.

Significant p-values ≤ 0.05 at 95% confidence interval.

 

Variable	2010	2011	2012	2013	2014	Total	p-value	Trend Direction
Number of admissions	1825	2026	1800	1665	1535	8851	< 0.001	Decreasing
Age
Mean age	54.01	55.96	56.24	56.73	55.96	55.76	< 0.001	Increasing
1-20 years	2.6 %	1.2 %	4.4 %	2.4 %	2.6 %	2.6 %	< 0.001	Stable
21-40 years	15.7 %	14.7 %	8.9 %	11.4 %	14.3 %	13.0 %		Decreasing
41-60 years	46.7 %	43.6 %	45.0 %	44.4 %	39.7 %	44.0 %		Decreasing
61-80 years	30.3 %	36.5 %	37.5 %	39.3 %	39.1 %	36.4 %		Increasing
> 80 years	4.7 %	4.0 %	4.2 %	2.4 %	4.2 %	3.9 %		Decreasing
Gender
Male	20.3 %	20.7 %	19.2 %	19.5 %	17.3 %	19.5 %	0.103	Decreasing
Female	79.7 %	79.3 %	80.8 %	80.5 %	82.7 %	80.5 %		Increasing
Race
Caucasian	51.9 %	62.0 %	56.9 %	60.7 %	55.6 %	57.5 %		Increasing
African American	27.7 %	24.5 %	25.8 %	23.0 %	19.8 %	24.3 %		Decreasing
Hispanic	14.9 %	7.4 %	10.0 %	12.8 %	14.9 %	11.8 %		Decreasing
Asian/Pacific Islander	2.7 %	1.9 %	2.9 %	0.6 %	3.8 %	2.4 %		Increasing
Native American	1.2 %	0.6 %	1.2 %	0.6 %	0.7 %	0.9 %		Decreasing
Other	1.5 %	3.6 %	3.2 %	2.2 %	5.2 %	3.1 %		Increasing
Insurance
Medicare	42.3 %	49.4 %	46.4 %	49.2 %	46.9 %	46.9 %	< 0.001	Increasing
Medicaid	18.3 %	9.8 %	13.9 %	12.9 %	13.0 %	13.5 %		Decreasing
Private insurance	29.4 %	33.1 %	31.7 %	31.5 %	33.2 %	31.8 %		Variable
Self-pay	5.7 %	5.3 %	4.4 %	2.4 %	3.3 %	4.3 %		Decreasing
No charge	0.7 %	0.5 %	0.0 %	0.3 %	0.3 %	0.4 %		Decreasing
Other	3.7 %	1.9 %	3.6 %	3.6 %	3.3 %	3.2 %		Decreasing
Median Household Income
0-25th percentile	32.2 %	25.1 %	30.4 %	29.5 %	30.2 %	29.3 %	< 0.001	Decreasing
26th-50th percentile	25.5 %	23.3 %	22.2 %	24.9 %	29.2 %	24.9 %		Increasing
51st-75th percentile	21.2 %	25.5 %	19.9 %	25.2 %	19.9 %	22.5 %		Decreasing
76th-100th percentile	21.1 %	26.2 %	27.6 %	20.3 %	20.6 %	23.4 %		Increasing