Table 7. Incident rate ratio adjusted for age comparing pregnancy status for all periods by study site.

	Karonga		Kisesa		Manicaland		Masaka		Rakai		uMkhanyakude
Pregnancy and Maternity Status	HRR	95% CI	HRR	95% CI	HRR	95% CI	HRR	95% CI	HRR	95% CI	HRR	95% CI
Maternity Status
Not pregnant	1		1		1		1				1
Pregnant	1.17	(0.49-2.79)	0.70	(0.47-1.03)	1.02	(0.62-1.68)	0.93	(0.62-1.39)	0.89	(0.71-1.11)	1.20	(0.97-1.48)
<1 year post partum	0.82	(0.33-2.04)	0.83	(0.60-1.14)	1.29	(0.90-1.86)	0.90	(0.63-1.29)	1.30	(1.08-1.55)	1.24	(1.03-1.48)
Pregnancy Status
Not pregnant	1		1		1		1		1		1
Pregnant	1.21	(0.51-2.86)	0.66	(0.43-0.99)	0.98	(0.60-1.62)	0.95	(0.64-1.40)	0.82	(0.66-1.03)	1.17	(0.95-1.44)
Adjusted
	Karonga		Kisesa		Manicaland		Masaka		Rakai		uMkhanyakude
Pregnancy and Maternity Status	HRR	95% CI	HRR	95% CI	HRR	95% CI	HRR	95% CI	HRR	95% CI	HRR	95% CI
Maternity Status
Not pregnant	1		1		1		1				1
Pregnant	0.97	(0.40-2.40)	0.56	(0.38-0.84)	0.81	(0.49-1.34)	0.76	(0.50-1.15)	0.73	(0.58-0.92)	0.91	(0.73-1.12)
<1 year post partum	0.67	(0.26-1.72)	0.68	(0.48-0.95)	1.04	(0.72-1.50)	0.74	(0.51-1.09)	1.08	(0.89-1.30)	0.94	(0.78-1.13)
Pregnancy Status
Not pregnant	1		1		1		1		1		1
Pregnant	1.08	(0.45-2.60)	0.57	(0.37-0.87)	0.80	(0.48-1.33)	0.82	(0.55-1.23)	0.71	(0.57-0.89)	0.92	(0.74-1.13)