Table 3.

Adjusted Rate Ratio (RR) Between Insomnia at Three Months and Raw Score on the Brief Symptom Inventory Depression Sub-Scale at Six Months.

	RR (95% CI)
Unadjusted
Insomnia at 3 months
No positive response	reference
One positive response	1.54 (1.15, 2.07)
Two positive responses	1.84 (1.37, 2.47)
Adjusted
Insomnia at 3 months
No positive response	reference
One positive response	1.21 (0.91, 1.60)
Two positive responses	1.25 (0.91, 1.72)
History of depression	1.78 (1.42, 2.23)
Prior TBI	1.36 (1.06, 1.75)
Sadness at 3 months	1.58 (1.24, 2.01)
Remove Sadness at 3 Months
Insomnia at 3 months
No positive response	reference
One positive response	1.33 (1.00, 1.78)
Two positive responses	1.45 (1.10, 1.91)