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Table 4 Comparison of strict versus relaxed biometry criteria and calculated estimated gestational age by volume sweep imaging protocol and standard of care ultrasound

From: Testing telediagnostic obstetric ultrasound in Peru: a new horizon in expanding access to prenatal ultrasound

Trimester Within 7 days Within 14 days
Overall agreement (strict) Overall agreement (including relaxed) Overall agreement (strict) Overall agreement (including relaxed)
All exams (n = 126) 42.2% (32.8–52.0%) 48.2% (38.6–57.9%) 67.9% (58.3–76.5%) 69.1% (59.6–77.6%)
Second trimester (n = 68) 56.7% (43.2–69.4%) 63.9% (50.6–75.8%) 85% (73.4–92.9%) 88.5% (77.8–95.3%)
Third trimester (n = 58) 24.5% (13.3–38.9%) 28.6% (16.6–43.3%) 46.9% (32.5–61.7%) 44.9% (30.7–59.8%)
  1. All values are percentage (95% confidence interval)