Risk of cardiometabolic outcomes among women with a history of pelvic inflammatory disease: a retrospective matched cohort study from the UK

Table 3 Incidence rates and hazard ratios for hypertension and type 2 diabetes mellitus for women with a history of pelvic inflammatory disease (PID) compared to those without a history of PID

	Hypertension		Type 2 diabetes mellitus
	Exposed	Unexposed	Exposed	Unexposed
Population	18,984	71,188	19,496	72,849
Events, n (%)	658	1942	294	720
Person-years	119,971.3	394,438.7	125,431.3	411,909.9
Crude incidence rate/1000 person years	5.5	4.9	2.3	1.7
Crude HR (95% CI)	1.09 (1.00–1.19)		1.31 (1.14–1.50)
P-value	0.051		< 0.001
Adjusted HR (95% CI)	1.10 (1.01–1.20)*		1.25 (1.09–1.43)^#
P-value	0.038		< 0.002

Model adjusted for age, Townsend deprivation quintiles, BMI, smoking status, lipid-lowering medication (current users, with a record of a prescription within 60 days prior to index date) contraceptive use (current users, defined as those prescribed combined oral contraceptive pills within the last 365 days prior to cohort entry) and reproductive conditions (premature delivery, miscarriage, stillbirths, gestational diabetes mellitus, polycystic ovary syndrome, pre-eclampsia, endometriosis)
CVD, composite CVD, HR, hazard ratio
*Model adjusted for diabetes mellitus, ^#Model adjusted for hypertension

ISSN: 1472-6874