Hypertension

Overview

In 2022, the overall rate of hypertension in pregnant women who gave birth in NSW was 5.3%. Around 1.9% of pregnant women who gave birth in NSW developed pre-eclampsia, 2.6% developed gestational hypertension, and 1.1% had pre-existing hypertension. This pattern is similar to previous years.

Maternal hypertension, NSW 2018–2022

By number of births

Condition	2018	2019	2020	2021	2022
Chronic hypertension	761	845	864	1060	974
Pre-eclampsia	1333	1385	1444	1629	1740
Eclampsia	34	49	34	42	44
Gestational hypertension	2258	2399	2324	2390	2321
Total hypertension¹	4193	4469	4490	4887	4800

By percentage of births

Condition	2018	2019	2020	2021	2022
Chronic hypertension	0.8	0.9	0.9	1.1	1.1
Pre-eclampsia	1.4	1.5	1.6	1.7	1.9
Eclampsia	0.0	0.1	0.0	0.0	0.0
Gestational hypertension	2.4	2.6	2.5	2.4	2.6
Total hypertension¹	4.5	4.8	4.9	5.0	5.3