TABLE 4.

Estimated Mean Costs and LOS for Infants With and Without NBI After Adjusting for Potential Confounding Variables Using Multiple Regression

BW, gMean Costs, $Mean LOS, days
No NBINBIDifferenceP ValueNo NBINBIDifferenceP Value
401–750123 012128 8875875.14188946.029
751–100081 58094 06012 480.00968757.006
1001–125050 78460 3679583.00247514.010
1251–150030 41136 6876276.00131365.006
  • * Values for mean cost and mean LOS correspond to geometric means.