Table 3.

Odds Ratios for Association Between Gestational Age at Birth (1973–1979) and Prescription of Antihypertensive Medications in Young Adulthood (Ages 25.5–37.0 Years), Sweden

Antihypertensive Medication (ATC Codea) Prescriptions/Yearb by Gestational Agec	Unadjusted		Adjusted Model 1d		Adjusted Model 2e
	OR	95% CI	OR	95% CI	OR	95% CI
≥1 prescriptions/year
23–27 weeks	2.42	1.07, 5.46	2.49	1.10, 5.63	2.51	1.11, 5.68
28–32 weeks	1.60	1.26, .2.02	1.57	1.24, 1.98	1.51	1.20, 1.91
33–34 weeks	1.33	1.10, 1.61	1.28	1.06, 1.55	1.24	1.03, 1.51
35–36 weeks	1.28	1.15, 1.42	1.26	1.13, 1.40	1.25	1.12, 1.39
37–42 weeks	1.00		1.00		1.00
≥43 weeks	1.12	1.00, 1.25	1.05	0.94, 1.18	0.97	0.86, 1.09
≥2 prescriptions/year
23–27 weeks	3.60	1.59, 8.13	3.71	1.64, 8.40	3.75	1.66, 8.49
28–32 weeks	1.68	1.28, 2.21	1.65	1.25, 2.17	1.58	1.20, 2.09
33–34 weeks	1.49	1.20, 1.86	1.43	1.15, 1.77	1.38	1.11, 1.72
35–36 weeks	1.31	1.15, 1.49	1.28	1.13, 1.46	1.27	1.12, 1.45
37–42 weeks	1.00		1.00		1.00
≥43 weeks	1.19	1.04, 1.36	1.11	0.97, 1.28	1.02	0.89, 1.17
≥3 prescriptions/year
23–27 weeks	3.69	1.37, 9.95	3.78	1.40, 10.2	3.83	1.42, 10.4
28–32 weeks	1.75	1.25, 2.45	1.71	1.22, 2.39	1.65	1.18, 2.30
33–34 weeks	1.79	1.39, 2.29	1.70	1.32, 2.18	1.65	1.29, 2.12
35–36 weeks	1.31	1.12, 1.54	1.28	1.09, 1.50	1.27	1.08, 1.49
37–42 weeks	1.00		1.00		1.00
≥43 weeks	1.20	1.01, 1.42	1.11	0.94, 1.32	1.02	0.86, 1.21
≥4 prescriptions/year
23–27 weeks	4.52	1.44, 14.2	4.62	1.47, 14.5	4.68	1.49, 14.7
28–32 weeks	1.97	1.31, 2.94	1.90	1.27, 2.85	1.80	1.20, 2.70
33–34 weeks	1.82	1.33, 2.50	1.72	1.26, 2.35	1.65	1.20, 2.26
35–36 weeks	1.28	1.04, 1.57	1.25	1.01, 1.53	1.23	1.00, 1.51
37–42 weeks	1.00		1.00		1.00
≥43 weeks	1.20	0.97, 1.49	1.11	0.90, 1.38	0.99	0.80, 1.23

Abbreviations: ATC, Anatomical Therapeutic Chemical (Classification); CI, confidence interval; OR, odds ratio.

^aCode(s) C02, C03, C07, C08, and/or C09.

^bOutcome variable.

^cPredictor variable.

^dAdjusted for infant's date of birth, infant's gender, maternal marital status, maternal education, family income, and maternal prescription of antihypertensive medications (≥1 prescriptions/year) during the follow-up period (July 1, 2005, through December 31, 2009).

^eAdjusted for the same variables included in adjusted model 1, as well as fetal growth.