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Table 3 Birth outcomes, Colorado singleton births, 1998–1999

From: Birth outcomes in Colorado's undocumented immigrant population

Newborn characteristics Undocumented immigrants N = 5961 All other women N = 112,943  
Mean birth weight 3268 gms 3250 gms 0.01
Very low birth weight (<1500 gms) 1.1% 1.0% 0.70
Low birth weight (<2500 gms) 5.3% 6.5% <.001
Mean gestational age 39.1 weeks 38.9 weeks <.001
Pre-term births (<37 weeks) 12.9% 14.5% 0.001
1-minute Apgar 7.68 7.73 <.01
5-minute Apgar 8.8 8.9 <.01
1-minute Apgar <5 (%) 7.8% 6.0% <.001
5-minute Apgar <5 (%) 1.0% 0.7% <.01
Abnormal conditions of the newborn 10.0% 7.8% <.001
Congenital defects of the newborn 1.0% 1.2% 0.41