Pregnancy outcomes following nonobstetric surgery during gestation: a nationwide population-based case-control study in Taiwan

Table 1 Demographic characteristics of pregnant women in the study populations as per LHID2000^a dataset from 1997 to 2013 in Taiwan

Characteristics	Nonobstetric surgery during pregnancy		P-value^b
Characteristics	No (N = 118,389)	Yes (N = 462)	P-value^b
Delivery	114,412	440
Abortion	3.977	22
Age (Mean ± SD)	29.16 ± 4.89	29.86 ± 5.48	0.007
< 20	2810 (2.37)	16 (3.46)	< 0.001
20–29	59,426 (50.20)	189 (40.91)
30–39	53,977 (45.59)	240 (51.95)
≧ 40	2176 (1.84)	17 (3.68)
Gestation			< 0.001
Singleton	116,904 (98.75)	442 (95.67)
Multifetal	1485 (1.25)	20 (4.33)
Comorbidities
Diabetes mellitus	189 (0.16)	0 (0.00)	1.000
Hypertension	199 (0.17)	4 (0.87)	0.008
Ischemic heart disease	40 (0.03)	2 (0.65)	0.012
Renal disease	56 (0.05)	0 (0.00)	1.000

^aLHID2000 Longitudinal Health Insurance Database 2000, a sub–dataset contains all claim data of 1 million beneficiaries who were randomly selected from the system in year 2000
^bChi-square test or Fisher’s exact test when the expected counts were fewer than 5
Data are mean ± S.D. or n (%). Significant different if p-value < 0.01

ISSN: 1471-2393