TABLE 3.

NBI and Costs for Infant Characteristics

CharacteristicsNNBI Rate, %Mean Costs*Mean LOS*
No NBINBINo NBINBI
BW, g
    401–75045043113 890143 84385101
    751–10007023077 481106 7376683
    1001–12508051349 40974 3404760
    1251–1500852629 62853 4053248
Gestational age, wk
    <2519656134 588154 77992108
    25–2652638100 310123 8787991
    27–287672066 79087 6576070
    29–307031143 09063 6084355
    >30617325 52952 5172846
Gender
    Female13911847 053100 2654579
    Male14182153 025108 2694980
Maternal race
    White18981949 86597 7944777
    Other9092150 012118 7704786
Prenatal care
    No1182453 920100 8645176
    Yes26891949 783104 5874780
Antenatal steroids
    No5662245 085110 5054281
    Yes22411951 181102 8084980
Birth location
    Inborn22671848 09699 3634677
    Outborn5422759 552120 1455488
Multiple birth
    No20122049 359104 9694781
    Yes7971951 403103 1854879
SGA
    No21412356 106105 8825281
    Yes6671036 11395 2453675
5-Min Apgar
    <51493580 226138 9866395
    ≥526451948 738100 9854678
Ventilated
    No739427 71746 9033146
    Yes20702565 361109 5615783
RDS
    No751627 66262 1813154
    Yes20582565 311109 5085783
CLD
    No19581341 70681 9634167
    Yes8293689 837128 9087293
NEC or NEC surgery
    No26541848 77597 7044677
    Yes1555197 899156 14873103
Other surgery
    No26761848 74796 9984676
    Yes13350110 915179 00578112
  • * Values for mean cost and mean LOS correspond to geometric means.