Table 5.
Multivariate analysis of pre, peri, and postnatal factors affecting eruption timing of mandibular central incisor in preterm babies
| Factor | Levels | Number (%) | Mean (SD) | B (SE) | p-value |
|---|---|---|---|---|---|
| Constant | Total = 52 | 12.061 (1.349) | <0.001 | ||
| Mother's age (year) | 52 (100) | 11.46 (1.25) | −0.019 (0.051) | 0.714 | |
| Socioeconomic status | Upper class | 25 (48.08) | 11.27 (1.37) | −0.379 (0.444) | 0.398 |
| Lower classa | 27 (51.92) | 11.62 (1.13) | |||
| Mode of delivery | Cesarean | 27 (51.92) | 11.16 (1.31) | −0.398 (0.450) | 0.382 |
| Vaginala | 25 (48.08) | 11.77 (1.13) | |||
| Parity | Second | 23 (44.23) | 12.27 (1.26) | 0.155 (0.457) | 0.043* |
| Firsta | 29 (55.77) | 11.60 (1.24) | |||
| Gender | Male | 31 (59.62) | 11.42 (1.22) | −0.434 (0.424) | 0.312 |
| Femalea | 21 (40.38) | 11.51 (1.33) | |||
| Birth weight | Extreme | 42 (80.77) | 12.50 (1.36) | 0.140 (0.547) | 0.029* |
| Normala | 10 (19.23) | 11.26 (0.66) | |||
| Birth length | Extreme | 11 (21.15) | 11.47 (1.14) | 0.263 (0.721) | 0.034* |
| Normala | 41 (78.85) | 10.45 (1.29) | |||
| Birth head circumference | Extreme | 12 (23.08) | 11.68 (1.26) | 0.668 (0.708) | 0.351 |
| Normala | 40 (76.92) | 11.39 (1.26) | |||
| Weight for GA | Small for GA | 14 (26.92) | 12.33 (1.06) | 0.328 (0.461) | 0.050* |
| Appropriate GAa | 38 (73.08) | 11.50 (1.33) | |||
| Feeding practice | Combination | 20 (38.46) | 11.40 (1.28) | −0.107 (0.523) | 0.838 |
| Breastfeda | 32 (61.54) | 11.45 (1.25) | |||
| Complementary feeding | >9 months | 40 (76.92) | 11.56 (1.33) | 0.575 (0.540) | 0.029* |
| ≤9 monthsa | 12 (23.08) | 10.12 (0.89) |
Reference group, aR-square = 0.144; SD, standard deviation; B(SE), regression coefficient (standard error); * significant