Dr A Leaños-Miranda

Correspondence to: Dr A Leaños-Miranda, Hospital de Ginecología y Obstetricia “Luis Castelazo Ayala”, Mexico City, Mexico; alfredolm@yahoo.com

STUDY QUESTION

In pregnant women with hypertension, is measurement of protein:creatinine ratio (PCR) in a single random urine sample an accurate method for diagnosing proteinuria compared with 24-hour urine collection?

STUDY DESIGN

Design:

prospective cohort study.

Setting:

hospital in Mexico.

Patients:

927 pregnant women (mean age 29 y) admitted to hospital at ⩾20 gestational weeks (mean 33 wk) with new onset hypertension (87% of women), chronic hypertension with suspected pre-eclampsia (6%), or normal blood pressure (7%).

Description of test:

PCR measured in a single random daytime urine sample (not first morning void).

Diagnostic standard:

protein measured in a 24-hour urine …