Table 1 Demographic and clinical characteristics of the three studied groups
Variables | Group A (n = 80) | Group B (n = 80) | Group C (n = 80) | F | P value |
|---|---|---|---|---|---|
Gestational age (weeks) Mean ± SD | 34.05 ± 1.99 | 34.28 ± 1.61 | 34.2 ± 1.76 | 0.325 | 0.722 |
Gender | |||||
Female | 32 (40%) | 36 (45%) | 38 (47.5%) | χ2 .946 | 0.623 |
Male | 48 (60%) | 44 (55%) | 42 (52.5%) | ||
Weight (kg) Mean ± SD | 2.19 ± 0.467 | 2.21 ± 0.416 | 2.17 ± 0.459 | 0.174 | 0.841 |
Length(cm) Mean ± SD | 44.39 ± 2.78 | 44.79 ± 1.99 | 44.44 ± 2.55 | 0.625 | 0.536 |
Age at intervention (days) Mean ± SD | 9.55 ± 4.76 | 9.8 ± 2.38 | 11.33 ± 1.42 | KW 2.59 | 0.274 |