Statistics from Altmetric.com
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.
Dr S Ziaei, Tarbiat Modarres University, Tehran, Iran; email@example.com
randomised placebo-controlled trial.
blinded (patients and healthcare providers).*
6 prenatal clinics in Iran.
750 non-smoking women 17–35 years of age (mean age 26 y) with a singleton pregnancy in the early second trimester (mean 13 wks), haemoglobin concentration ⩾13.2 (mean 14.0) g/dl, body mass index 19.8–26 kg/m2, no history of threatened abortion in the current pregnancy, and no disease related to polycythaemia such as asthma or chronic hypertension.
ferrous sulphate, 150 mg (50 mg of elemental iron) (n = 375), or placebo (n = 375) once daily throughout pregnancy. All women received folic acid, 1 mg/day, but were not allowed to take other vitamin or …
Source of funding: not stated.