Table 1.
The distribution of various parameters studied according to the duration of breastfeeding
| Parameters | Category | Breastfeeding <6 months ( n = 158) | Breastfeeding ≥6 months ( n = 257) | OR (95% CI) | P value |
|---|---|---|---|---|---|
| Age (years) | 4 | 0 | 1 (0.4) | -- | -- |
| 5 | 61 (38.6) | 80 (31.1) | -- | ||
| 6 | 97 (61.4) | 176 (68.5) | -- | ||
| Sex | Male | 85 (53.8) | 143 (55.6) | -- | -- |
| Female | 73 (46.2) | 114 (44.4) | -- | ||
| Sucking habit | Digit sucking | 17 (10.8) | 14 (5.4) | 2.093 (1.00 to 4.37) | 0.046 (S) |
| Thumb sucking | 12 (7.6) | 13 (5.1) | 1.543 (0.68 to 3.47) | 0.292 (NS) | |
| Dummy sucking | 4 (2.5) | 4 (1.6) | 1.643 (0.40 to 6.66) | 0.483 (NS) | |
| Non-nutritive sucking | 32 (20.3) | 31 (12.1) | 1.852 (1.08 to 3.18) | 0.024 (S) | |
| Malocclusion | Open bite | 1 (0.6) | 2 (0.8) | 0.812 (0.073 to 9.03) | 0.865 (NS) |
| Crossbite | 20 (12.7) | 5 (1.9) | 7.304 (2.68 to 19.89) | 0.001 (S) | |
| Distance (cm) | Maxilla ICD | 3.96 ± 0.33 | 4.05 ± 0.34 | -- | 0.006 (S) |
| Maxilla IMD | 5.08 ± 0.34 | 5.19 ± 0.31 | -- | 0.001 (S) | |
| Mandible ICD | 3.53 ± 0.33 | 3.56 ± 0.32 | -- | 0.342 (NS) | |
| Mandible IMD | 4.63 ± 0.30 | 4.74 ± 0.34 | -- | 0.002 (S) |
Values of age, sex, sucking habit and malocclusion are n (%), P values of which are obtained using a chi-square test. Values of distance are shown as mean ± standard deviation, P values of which are obtained using independent samples ‘t’ test after confirming the underlying normality assumption. P < 0.05 is considered to be statistically significant. S, statistically significant; NS, statistically non-significant.