Table 3

Impact of different maternal features on the risk of ischaemic heart disease (IHD), stroke and myocardial infarction (MI) in women with a history of pre-eclampsia, followed in 1969–2019

nIHD
HR (95% CI)
MI
HR (95% CI)
Stroke
HR (95% CI)
Type of pre-eclampsiaWithout severe features25 814 (81.5%)1.001.001.00
With severe features or eclampsia5874 (18.5%)1.15 (1.04 to 1.27)1.19 (1.01 to 1.40)1.26 (1.12 to 1.41)
EclampsiaNo30 681 (96.8%)1.001.001.00
Yes1007 (3.2%)0.85 (0.68 to 1.07)0.80 (0.54 to 1.19)1.15 (0.91 to 1.45)
Recurrence of pre-eclampsiaNo27 506 (86.8%)1.001.001.00
Yes4180 (13.2%)1.30 (1.16 to 1.45)1.32 (1.09 to 1.60)1.30 (1.14 to 1.47)
Number of fetuses in the index pregnancySingleton30 862 (78.4%)1.001.001.00
Twins826 (21.6%)0.83 (0.62 to 1.09)0.77 (0.49 to 1.22)0.73 (0.51 to 1.03)
Age at index day (years)<247053 (22.3%)1.06 (0.94 to 1.20)1.08 (0.87 to 1.36)1.34 (1.17 to 1.52)
≥2424 635 (77.7%)1.001.001.00
CountySouthern or western22 340 (70.5%)1.001.001.00
Northern or eastern9348 (29.5%)1.31 (1.20 to 1.42)1.29 (1.11 to 1.49)1.12 (1.01 to 1.24)