Table 4. Adjusted Rate Ratios and 95% CL for Employment and Medication Utilization Indicators by Migraine and PTSD Status.

	(A) – Migraine –PTSD (n=4535)	(B) – Migraine + PTSD (n=244)		(C) + Migrairne – PTSD (n=236)		(D) + Migraine +PTSD (n=68)
		RR (95% CL)	P value (B vs A)	RR (95% CL)	P value (C vs A)	RR (95% CL)	P value (D vs A)	P value (C vs D)
Employment
Number of days in last 30 days where work quality was cut due to physical or mental health or substance abuse (0-30)	Ref	2.09 (1.91, 2.29)	.0002	2.39 (2.19, 2.62)	.0002	6.79 (6.16, 7.49)	.0002	.0002
Number of years employed at least 6 months (0-78)	Ref	1.09 (1.06, 1.13)	.0002	1.02 (0.99, 1.06)	.21	1.05 (0.99, 1.12)	.10	.10
Number of weeks worked for profit in last 12 months (0-52)	Ref	1.05 (1.03, 1.07)	.0002	0.98 (0.96, 1.00)	.08	0.88 (0.84, 0.92)	.0002	.0002
Number of hours worked for pay or profit in average week (0-96)	Ref	1.06 (1.04, 1.09)	.0002	1.01 (0.98, 1.04)	.47	1.10 (1.04, 1.16)	.0002	.001
Medication Utilization
Number of different prescription medications taken in last 7 days (0-50)	Ref	1.61 (1.47, 1.78)	.0002	1.87 (1.70, 2.06)	.0002	2.17 (1.86, 2.54)	.0002	.10
Number of different nonprescription medications taken in last 7 days (0-53)	Ref	1.29 (1.17, 1.42)	.0002	1.25 (1.13, 1.39)	.0002	1.42 (1.19, 1.70)	.0002	.22

Poisson regression used for all results. Models adjusted for age, income, sex, race, marital status, and smoking status.

RR=rate ratio. All P values were calculated using FDR analyses to adjust for multiple comparisons.