PMC:2952583 / 5176-6366 JSONTXT

{"target":"http://pubannotation.org/docs/sourcedb/PMC/sourceid/2952583","sourcedb":"PMC","sourceid":"2952583","source_url":"https://www.ncbi.nlm.nih.gov/pmc/2952583","text":"The diagnosis of chronic hypertension required documentation of antihypertensive-drug therapy by medical records or a blood pressure while sitting of greater than or equal to 140/90 mmHg taken on two occasions at least four hours apart, either before pregnancy or during pregnancy, but prior to study entry and before 20 weeks' gestation. Multifetal gestation was documented by ultrasound examination before enrollment. Previous preeclampsia was defined as new-onset proteinuric hypertension as determined by medical records or, in the absence of a record, an oral history of preeclampsia that resulted in delivery before the 37th gestational week. At the screening visit, all women underwent urinary-protein testing by dipstick. If the test was 1+ or greater, a 24-hour urine sample was collected; women with values of 300mg of protein per 24 hours were considered to have proteinuria. Women with multi-fetal gestations were ineligible for the study if they also had diabetes mellitus, chronic hypertension, or proteinuria as defined above, as were women with a history of preeclampsia and current proteinuria. Women with both diabetes and hypertension were included in the diabetes group.","tracks":[]}