Table 2. Live births and incidence of invasive GBS disease among infants <3 months of age, by region and sentinel hospital, China, January 1, 2015–December 31, 2017*.

Region	Births	Case-patients born in sentinel hospitals	Expected cases/ region†	Hospital‡	Live births								Expected cases/ hospital†
										GBS case-patients born
						GBS cases				in study hospitals
						Total	EOD	LOD		Total	EOD	LOD
NE	41,088	16 (0.39)	31	SY§	32,666	34	16	18		16 (0.49)	11 (0.34)	5 (0.15)	25
				HY§	8,422	0	0	0		0	0	0	6
North	115,310	21 (0.18)	88	BJ	43,099	3	3	0		3 (0.07)	3 (0.07)	0	33
				TJ	42,320	7	5	2		6 (0.14)	5 (0.12)	1 (0.02)	32
				TS	29,891	23	7	16		12 (0.40)	4 (0.13)	8 (0.27)	23
East	127,474	28 (0.22)	97	NJ	70,153	16	4	12		14 (0.20)	4 (0.06)	10 (0.14)	53
				ZJ	57,321	14	12	2		14 (0.24)	12 (0.21)	2 (0.03)	44
Central	108,175	57 (0.53)	82	CS	40,521	19	15	4		19 (0.47)	15 (0.37)	4 (0.10)	31
				HB	67,654	38	17	21		38 (0.56)	17 (0.25)	21 (0.31)	51
South	157,949	76 (0.48)	120	GZ	66,477	74	18	56		36 (0.54)	12 (0.18)	24 (0.36)	51
				GD	40,628	36	24	12		31 (0.76)	23 (0.57)	8 (0.20)	31
				GX	50,844	13	10	3		9 (0.18)	8 (0.16)	1 (0.02)	39
West	84,535	1 (0.01)	64	NX§	8,795	2	1	1		0	0	0	7
				XJ	26,545	1	1	0		1 (0.04)	1 (0.04)	0	20
				XJ1§	8,777	2	0	2		0	0	0	7
				XJ2§	7,374	0	0	0		0	0	0	6
				CQ	33,044	0	0	0		0	0	0	25
*Values are no. (no./1,000 live births) except as indicated. BJ, Tsinghua University Hospital; CQ, Chongqing Health Center for Women and Children; CS, Changsha Hospital for Maternal and Child Health; EOD, early-onset disease; GBS, group B Streptococcus; GD, Guangdong Women and Children’s Hospital; GX, The Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; GZ, Guangzhou Women and Children’s Medical Center; HB, Hubei Maternal and Child Health Hospital; HY, The First Affiliated Hospital, Harbin Medical University; LOD, late-onset disease; NE, northeast; NJ, Nanjing Maternity and Child Health Care Hospital; NX, General Hospital of Ningxia Medical University; SH, Children’s Hospital of Fudan University; SY, Shengjing Hospital, China Medical University; TJ, Tianjin Central Hospital of Gynecology Obstetrics; TS, Tangshan Maternal and Child Health Care Hospital; XJ, Maternal and Child Health Care Hospital of Uygur Autonomous Region; XJ1, The First Affiliated Hospital of Xi’an Jiaotong University; XJ2, The Second Affiliated Hospital of Xi’an Jiaotong University; ZJ, Women’s Hospital, Zhejiang University. †Estimated using highest incidence of 0.76/1,000 live births reported from this study. ‡Maternal and child hospitals, except where indicated. One hospital, Children’s Hospital of Fudan University, participated in the study but is omitted from this table because it does not have an obstetrics department, it had no infants with GBS born in it, and it was not included in calculation of incidence rates. §General hospital.