. Author manuscript; available in PMC: 2021 Jul 7.

Published in final edited form as: J Am Coll Cardiol. 2020 Jul 7;76(1):57–67. doi: 10.1016/j.jacc.2020.04.072

Table 5.

Spontaneous or medically indicated delivery and subsequent risk of IHD, Sweden, 1990–2015.

	Cases	Rate^a	HR (95% CI)^b	P
Preterm
Spontaneous	204	92.5	1.43 (1.24, 1.65)	<0.001
Medically indicated	352	185.3	2.20 (1.95, 2.48)	<0.001
Early term
Spontaneous	690	81.1	1.28 (1.17, 1.39)	<0.001
Medically indicated	634	130.5	1.69 (1.55, 1.84)	<0.001
Full-term	2,902	60.1	Reference

IHD incidence rate per 100,000 person-years.

Adjusted for maternal age, year of delivery, parity, education, employment, income, region of origin, BMI, smoking, preeclampsia, other hypertensive disorders, and diabetes prior to delivery.