Table 1.

Rates of hypertension in the validation study and population health data sets (PHDS).

		Rates of hypertension by data source (%*)
Type of hypertension	No. of “true” cases	Validation study	Birth data	Hospital data	Either birth or hospital data
Any hypertension	178	9.5	6.2	7.2	8.0
Any Chronic hypertension	25	1.3	0.5	0.6	0.8
Any Pregnancy hypertension	165	8.3	5.7	6.0	7.5
Gestational hypertension	72	6.2		3.8
Preeclampsia	93	2.1		2.3

^*Percentages are weighted for the sampling probability.