Table.

Reporting of Maternal Morbidity on the Birth Certificate versus Hospital Discharge Massachusetts, 2011–13

Maternal Morbidity	Mode of Delivery	Rate/100,000 deliveries		Numerator	Sensitivity	Positive Predictive Value
		Birth Certificate	Hospital Discharge	Present in both sources
Blood Transfusion	All	171	1,053	261	0.12	0.73
	Vaginal	92	637	97	0.11	0.75
	Cesarean	343	1,962	162	0.13	0.72
Ruptured Uterus	All	102	71	39	0.26	0.18
	Vaginal	45	6	2	0.22	0.03
	Cesarean	229	213	37	0.26	0.25
Unplanned Hysterectomy	All	58	75	80	0.51	0.66
	Vaginal	22	16	11	0.48	0.35
	Cesarean	137	203	69	0.52	0.77
Admission to Intensive Care	All	132	194	81	0.20	0.29
	Vaginal	92	60	18	0.21	0.14
	Cesarean	219	485	63	0.20	0.44
3rd or 4th degree Perineal Laceration	Vaginal	928	2,746	1,190	0.30	0.90