Table 2.

Characteristics of Infants Requiring Repeat Analysis Compared With Infants Not Requiring Repeat Analysis

VariableRepeat
Not Needed
PercentRepeat
Needed
Percentχ2
Birth weight (g) 2-165
 <1500245  83.94716.1
 1500–2499   1752  89.620410.4
 >2499  37 221  97.111232.9
Marital status 2-165
 Married  29 880  96.99563.1
 Single   8530  95.73844.3
 Formerly married 808  96.0344.0
Birth frequency **
 >10 Births/day  24 818  96.68753.4
 1–10 Births/day6827  97.21972.8
 <1 Birth/day7414  96.22933.8
 Out of hospital 159  94.695.4
Home community different from birth community 2-165
 No  28 878  96.99293.1
Home different but in same health administrative region5149  96.22053.8
Home different and out of health administrative region5191  95.62404.4
Infant likely of native origin 2-165
 No  37 870  96.812693.2
 Probable1348  92.81057.2
Died in week 1 2-165
 No  39 209  96.613703.4
 Yes   9  69.2430.8
  • * P < .05;

  • ** P < .01;

  • F2-165 P < .001.