Table 4.

Calculated Driving Distance in Miles to Nearest Higher-Level Facility

Level of Care	Driving distance in miles to nearest higher-level facility in Montana, Median [IQR]*
Maternal Level of Care	Level II	Level III	Level IV
< Level I (n = 6)	96.5 [54–273]	325.5 [145–412]	326 [145–412]
Level I (n = 11)	90 [57–119]	257 [227–399]	258 [227–399]
Neonatal Level of Care	Level II	Level III	Level IV
Level I (n = 12)	78 [60.5–130]	107 [67.5–199.5]	N/A

^* IQR Interquartile range