Pre- and Postintervention Factor Structure of Functional Independence Measure in Patients with Spinal Cord Injury

Table 3

Basic characteristics of the sample.

Estimate	Mean^a	Standard deviation^a	Median	Range		Interquartile range
				Min	Max	25%	75%
Age, years	58.7	15.5	61	18	87	50	69	155
Length of stay, days	24.8	19.4	17	3	107	11	32	155
Time since SCI onset, months	20.1	49.6	3.1	0.0	330.9	1.2	13.1	155
Preassessment, days after admission	2.2	1.4	2.0	0	11	1	3	155
Postassessment, days before discharge	2.7	8.3	1.0	0	68	0	2	154
FIM scores, points
Preintervention
Total	97.6	25.5	107	36	126	78	120	155
Motor	64.2	23.9	74	13	91	45	85	155
Cognitive	33.4	2.8	35	18	35	33	35	155
Postintervention
Total	102.7	24.3	114	31	126	90	123	155
Motor	69.3	22.4	80	13	91	56	88	155
Cognitive	33.5	2.7	35	18	35	33	35	155

^aAll of the estimates were distributed abnormally.