TABLE 2.
Detection of small‐for‐gestational age infants
| SGA infants | RR | 95% CI | aRR | 95% CI | |||||
|---|---|---|---|---|---|---|---|---|---|
| Total (n) | Detected antenatally | Not detected antenatally | |||||||
| n | % | n | % | ||||||
| Routine ultrasound population (A) | 2951 | 1371 | 46.5 | 1580 | 53.5 | 1.35 | 1.22–1.50 | 1.35 | 1.22–1.49 |
| Scanned population (A1) | 1678 | 1129 | 67.3 | 549 | 32.7 | 1.96 | 1.78–2.16 | 1.96 | 1.78–2.17 |
| Ultrasound on indication population (B) | 860 | 295 | 34.3 | 565 | 65.7 | 1.00 | Reference | 1.00 | Reference |
SGA infant: infant with birthweight z‐score less than −2.0.
Abbreviations: aRR, adjusted risk ratio; RR, risk ratio; SGA, small‐for‐gestational age.