Table 3.
Multivariable analysis for the fixed effects of mcSOS and mcBTT during hospitalization and follow-up
| Variables | Regression coefficient | Standard error | 95% confidence interval | p value | |
|---|---|---|---|---|---|
| lower | upper | ||||
| SOS | |||||
| Intercept | 1601.77 | 11.07 | 1580.00 | 1624.53 | 0.000 |
| Time | -3.36 | 0.97 | -5.27 | -1.46 | <0.001* |
| Gender (male) | -5.30 | 2.50 | -10.26 | -0.34 | 0.037* |
| Total parenteral feeding days | 0.22 | 0.10 | 0.01 | 0.43 | 0.038* |
| Weight | -0.01 | 0.00 | -0.01 | -0.00 | <0.001* |
| Length | 1.16 | 0.34 | 0.49 | 1.84 | <0.001* |
| BTT | |||||
| Intercept | -0.02 | 0.14 | -0.35 | 0.15 | 0.907 |
| Length | -0.02 | 0.01 | -0.04 | -0.02 | <0.001* |
| Length (SDS) | 0.07 | 0.02 | 0.04 | 0.11 | <0.001* |
| Head circumference | 0.05 | 0.01 | 0.04 | 0.08 | <0.001* |
| Head circumference (SDS) | -0.05 | 0.02 | -0.11 | -0.02 | 0.016* |
mcSOS: metacarpal speed of sound; mcBTT: metacarpal bone transmission time; SDS: standard deviation scores; *significant p value <0.05