Table 4.

Comparison between insulin-dependent and nondependent groups.

	Insulin Dependent (N = 18)	Insulin Independent (N = 30)	P Value
FBS	149.2 ± 16	140.3 ± 21.5	.1
HbA1C	7.9 ± 0.8	7.3 ± 0.6	.006
Duration of hospitalization	6 ± 2.6	5.3 ± 3.8	.4
Pre-operation ODI	72.1 ± 8.7	65 ± 10.5	.02
Pre-operation VAS	8.1 ± 0.9	7.6 ± 0.9	.1
ODI 2 wk postoperation	58.6 ± 12.1	51.8 ± 12.9	.07
VAS 2 wk postoperation	5.8 ± 1.5	5.1 ± 1.5	.1
ODI 6 mo postoperation	50.8 ± 12.3	42.3 ± 13.6	.03
VAS 6 mo postoperation	4.8 ± 1.6	3.9 ± 1.8	.06
ODI 1 yr postoperation	45 ± 14.1	38.1 ± 15.8	.1
VAS 1 yr postoperation	3.9 ± 1.8	3.3 ± 2	.3
Lumbar fusion	10 (55.5%)	18 (60%)	.7

Abbreviations: FBS, fasting blood sugar; ODI, Oswestry Disability Index; VAS, visual analogue scale.