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Table 1 Structure of control and intervention groups

From: Use of a portable system with ultrasound and blood tests to improve prenatal controls in rural Guatemala

  Pregnant women intervention groupa Pregnant women control groupb Total
Area A 219 338 557
Area B 262 157 419
Area C 281 252 533
Total 762 747 1509
  1. aData obtained from the project database
  2. bData obtained from the records of the health providers (PEC-MSPAS)