TABLE 1

LOS and Survival According to Infant Birth Weight Category for Hospital Births in California in 2000

Birth Weight Group, gTotal No.No. of Deaths (%)LOS
Mean, dMedian, dSD, d10th Percentile90th Percentile
<500555521 (93.9)8.90.033.20.03.0
500–7491027460 (44.8)60.269.058.20.0126.0
750–9991207173 (14.3)68.171.042.23.0107.0
1000–1249134494 (7.0)52.252.027.217.081.0
1250–1499171365 (3.8)35.634.021.313.057.0
All <150058461313 (22.5)47.943.040.90.099.0
1500–1749243878 (3.2)25.323.018.09.042.0
1750–1999387555 (1.4)15.713.013.43.030.0
2000–249919 878155 (0.8)6.23.010.11.014.0
All <250032 0371601 (5.0)16.46.025.81.046.0
≥2500486 660512 (0.1)2.32.03.31.04.0
Total518 6972113 (0.4)3.12.08.01.04.0