Table 3.

Logistic Regression Analysis Describing Factors Accounting for Need to Repeat Newborn Metabolic Analyses in Infants Born in Alberta in 1992

VariableNSQ/US Sample*<24-h SampleAbnormal Result
OR95% CIOR95% CIOR95% CI
Birth weight (g)
 >25001.001.001.00
 1500–24991.700.82 –3.511.210.67 –2.174.924.16 –5.83
 <15006.352.11 –19.035.652.76 –11.576.324.37 –9.13
Births in community
 >10 per day1.001.00
 1–10 per day1.320.72 –2.430.850.71 –1.01
 <1 per day6.474.33 –9.670.810.68 –0.98
 Born out of hospital8.792.80 –27.620.670.21 –2.15
Native status: 1 = yes2.221.35 –3.692.341.80 –3.05
Marital status
 Married1.00
 Single1.190.80 –1.75
 Formerly married2.631.25 –5.55
Blood >7 days: 1 = yes2.991.43 –6.27NANA
Gender: 1 = male1.391.07 –1.81
Died in week 1: 1 = yes8.642.08 –35.90
  • * In each instance, 0 indicates null; 1, positive response.

    NA indicates not applicable.