TABLE 2

Emergency Hospital Admissions for Respiratory Disease by Gestational Age Categories (N = 318 613)

Gestational Age% Infants With Any ERA in Before Age 1 y% Children With Any ERA Age 1–5 yMean No. of ERAs per 100 Child-Years Before Age 1 yMean No. of ERAs per 100 Child Years Age 1–5 y
AGASGAAGASGAAGASGAAGASGA
<33 wk (AGA n = 4351/SGA n = 555)23.623.419.418.441.548.013.515.0
33–34 (AGA n = 4580/SGA n = 480)16.619.814.417.723.730.58.09.4
35–36 (AGA n = 11457/SGA n = 1432)13.514.512.614.418.822.56.97.9
37 (AGA n = 15118/SGA n = 1912)11.813.911.911.915.618.86.26.1
38 (AGA n = 37187/SGA n = 4067)10.211.211.112.113.215.45.56.5
39 (AGA n = 59197/SGA n = 6416)8.910.510.010.811.514.15.15.4
40–42 (AGA n = 155110/SGA n = 16751)7.89.49.610.79.812.04.75.4
Overall (n = 318 613)9.310.512.25.3
  • AGA, appropriate for gestational age; ERA, emergency respiratory admission; SGA, small for gestational age.