Association of hemoglobin values at booking with adverse maternal outcomes among Peruvian populations living at different altitudes.

Objective: To determine hemoglobin values associated with adverse maternal outcomes among Peruvian populations at different altitudes.

Methods: A retrospective cohort study was conducted using data from the Perinatal Information System. Adverse maternal outcomes were assessed.

Maternal hemoglobin concentration and adverse pregnancy outcomes at low and moderate altitudes in Peru.

Objective: To identify associations of maternal hemoglobin (Hb) with perinatal outcomes at low and moderate altitudes in Peru.

Methods: Study of records with sequential information using perinatal database system. The study included 295 651 pregnant women with their products.

Stillbirth rates in Peruvian populations at high altitude.

Objective: To compare the stillbirth rates in 4 cities at different altitudes in Peru.

Methods: The stillbirth rates from a sample of 22,662 births recorded in the Perinatal Information System database were analyzed between 2005 and 2006 for the cities of Lima (150 m), Huancayo (3280 m), Cuzco (3430 m), and Puno (3850 m).

Results: Stillbirths were higher at high altitude (>3000 m) (OR 4.