Table 1.

Demographics

	Total Montana Patients			Race
	Urban (RUCC ≤3; n=80)	Rural (RUCC ≥4; n=97)	p Value	White (n=116)	American Indian/Alaskan Native (n=50)	p Value
Mean Age [95% CI]	57.9 [53.9, 61.8]	60.5 [57.2, 63.9]	0.3118	63.1 [60.0, 66.3]	51.5 [47.3, 55.7]	<0.0001
Sex, Female n (%)	41 (51.3%)	41 (42.3%)	0.2330	55 (47.4%)	20 (40.0%)	0.3686
Mean hospital LOS, days [95% CI]	8.6 [6.0, 11.2]	11.7 [8.9, 14.5]	0.1075	9.4 [7.2, 11.7]	13.9 [9.7, 18.1]	0.0651
Mean ICU LOS, days (n) [95% CI]	4.4 (16) [0.65, 8.12]	6.7 (19) [3.7, 9.8]	0.3117	5.0 (23) [2.1, 7.9]	6.9 (12) [2.8, 11.0]	0.4266
Mean Charlson Score (n) [95% CI]	2.0 (55) [1.5, 2.4]	2.1 (52) [1.6, 2.6]	0.6782	2.1 (72) [1.7, 2.5]	2.0 (30) [1.3, 2.6]	0.6983
Mean Distance to State Regional Trauma Center in Miles [95% CI]	43.2 [24.8, 61.7]	244.3 [222.1, 266.6]	<0.0001	126.3 [102.0, 150.6]	198.4 [158.0, 239.2]	0.0032
NSTI Incidence/100,000 Pt/years (Standardized Incidence Ratio, 95% CI)	2.5	5.3 SIR=1.72, 95% CI [1.4, 2.1]	<0.0001	3.1	21.1 SIR=28.3, 95% CI [21.0, 37.3]	<0.0001

Rural-Urban Continuum Codes (RUCC; characterizing counties by population size). Bolded text p values <0.05 were considered significant.