Table 3.

Rates of validated adverse outcomes by source of pregnancy hypertension report.

		Validated outcomes %*
Data source	Women with pregnancy-related hypertension,†	Severe preeclampsia	Preterm <37 weeks	Maternal morbidity
“True” pregnancy hypertension‡	165	10.6	9.0	4.9
Hypertension Reporting Source
Birth data alone	109	14.5	13.0	6.5
Hospital data alone	142	15.5	13.2	6.9
Either hospital or birth data	157	12.8	11.0	5.7
Both hospital and birth data	94	18.7	16.7	8.4

^*Weighted percentage of validated adverse outcomes among women with pregnancy hypertension.

^†Number of women in the validation study with pregnancy-related hypertension according to the data source.

^‡‘True’ rates of adverse outcomes among women with any pregnancy-related hypertension, according to the medical records. The subsequent rows show that those with severe disease or poor outcomes are more likely to be reported in PHDS but the differences were not statistically significant (p> 0.1).