Clinical Study
Evaluation of Creatine Kinase, Lactate Dehydrogenase, and Amylase Concentrations in Umbilical Blood of Preterm Infants after Long-Term Tocolysis
Table 1
Clinical backgrounds of the three groups.
| | | Group A () | Group B () | Group C () | P value |
| | Maternal age | 31.3 ± 0.5 | 31.6 ± 0.8 | 32.1 ± 0.6 | N.S. | | Gravidity | 1.6 ± 0.2 | 1.4 ± 0.4 | 1.2 ± 0.3 | N.S. | | Parity | 0.9 ± 0.1 | 1.0 ± 0.1 | 0.7 ± 0.1 | N.S. | | Body mass index at delivery | 24.4 ± 0.5 | 23.4 ± 0.7 | 23.3 ± 0.7 | N.S. | | Magnesium sulfate (%) | 5.8** | 17* |
58.1**,* |
<0.01**
<0.05* | | Gestational age (weeks) | 31.3 ± 0.5 | 31.6 ± 0.8 | 32.1 ± 0.6 | N.S. | | Birth weight (g) | 1776.1 ± 59.4 | 1718.7 ± 88.0 | 1606.6 ± 65.1 | N.S. | | Cesarean birth (%) | 67.4 | 37** | 68.8** | <0.01** | | Sex male (%) | 55.6 | 54.6 | 62.7 | N.S. | | 1 min Apgar score | 7.1 ± 0.2 | 7.3 ± 0.4 | 6.6 ± 0.2 | N.S. | | 5 min Apgar score | 8.5 ± 0.1 | 8.7 ± 0.2 | 8.2 ± 0.2 | N.S. | | Umbilical arterial pH | 7.29 ± 0.02 | 7.34 ± 0.04 | 7.32 ± 0.02 | N.S. | | Kaup index | 10.3 ± 0.2 | 10.1 ± 0.3 | 10.0 ± 0.2 | N.S. | | Placental weight (g) | 448.2 ± 12.3 | 438.4 ± 17.9 | 442.4 ± 13.5 | N.S. | | Maternal blood CK (IU/L) | 55.5 ± 40.9 | 49.4 ± 45.4* | 158.0 ± 501.7* | <0.05* | | Maternal blood LDH (IU/L) | 170.3 ± 40.8 | 169.5 ± 30.4 | 181.1 ± 67.7 | N.S. | | Maternal blood amylase (IU/L) | 79.2 ± 26.2 | 72.5 ± 26.5 | 75.4 ± 23.9 | N.S. |
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N.S.: not significant; *P < 0.05; **P < 0.01.
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