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The clinical performance of L/S ratio and LBC in FLM prediction
| N = 33 | Premature | Mature | Sensitivity | Specificity |
|---|---|---|---|---|
| L/S < 10.0 | 10 | 0 | 91% | 100% |
| L/S> 10.0 | 1 | 22 | ||
| LBC < 50 × 109/L | 8 | 1 | 73% | 95% |
| LBC> 50 × 109/L | 3 | 21 |
FLM: fetal lung maturity; L/S: lecithin/sphingomyelin ratio; LBC: lamellar body counts.
