Future risk of hospitalisation for heart failure or an atrial or ventricular dysrhythmia in association with a prior maternal placental syndrome (MPS)*
| Outcome event | MPS* (n=75 242) | No MPS (n=1 055 522) | HR (95% CI) | |||
| Events, N (%) | Incidence rate per 10 000 person-years | Events, N (%) | Incidence rate per 10 000 person-years | Crude | Adjusted† | |
| Primary composite | ||||||
| Hospitalisation for an atrial or ventricular dysrhythmia or heart failure | 148 (0.20) | 2.54 | 1062 (0.10) | 1.28 | 2.00 (1.68 to 2.38) | 1.61 (1.35 to 1.91) |
| Individual | ||||||
| Hospitalisation for heart failure | 80 (0.11) | 1.37 | 488 (0.046) | 0.59 | 2.36 (1.86 to 3.00) | 1.80 (1.42 to 2.29) |
| Hospitalisation for an atrial dysrhythmia | 51 (0.068) | 0.87 | 415 (0.039) | 0.50 | 1.76 (1.32 to 2.36) | 1.48 (1.10 to 1.98) |
| Hospitalisation for a ventricular dysrhythmia | 30 (0.040) | 0.51 | 245 (0.023) | 0.30 | 1.76 (1.20 to 2.56) | 1.41 (0.96 to 2.07) |
↵* Defined as gestational hypertension, pre-eclampsia, placental abruption and/or placental infarction.
↵† Adjusted for maternal age, length of stay in the index delivery hospital, socioeconomic quintile, rural residence, multiple gestation, diabetes mellitus, obesity, dyslipidaemia, coronary artery disease, thyroid disease and drug dependence or tobacco use.