Table 2.
Unadjusted and adjusted risk ratios for Poisson Regression models and risk factors for traumatic dental injuries (TDI).
| Variables | Unadjusted
|
Adjusted*
|
||||
|---|---|---|---|---|---|---|
| RR | 95% CI | p | RR | 95% CI | p | |
| Level 1: Socio-demographic | ||||||
|
| ||||||
| Gender | 0.011 | 0.005 | ||||
| Male | 1.44 | (1.09–1.91) | 1.50 | (1.13–2.00) | ||
| Female | 1.00 | 1.00 | ||||
| Mother’s schooling | 0.513 | 0.345 | ||||
| < 8 years | 0.90 | (0.67–1.22) | 0.85 | (0.61–1.19) | ||
| ≥ 8 years | 1.00 | 1.00 | ||||
| Family Income | 0.987 | 0.867 | ||||
| 1st Tertile | 1.02 | (0.72–1.43) | 1.10 | (0.77–1.58) | ||
| 2nd Tertile | 0.99 | (0.70–1.39) | 1.03 | (0.73–1.45) | ||
| 3rd Tertile | 1.00 | 1.00 | ||||
|
| ||||||
| Level 2: Variables at birth | ||||||
|
| ||||||
| Birth weight | 0.464 | 0.431 | ||||
| <2,500 g | 0.72 | (0.35–1.48) | 0.64 | (0.29–1.44) | ||
| 2,500 – 4,000 g | 1.00 | 1.00 | ||||
| > 4,000 g | 1.20 | (0.76–1.90) | 1.20 | (0.75–1.92) | ||
| Birth length | 0.101 | 0.161 | ||||
| <48 cm | 0.74 | (0.51–1.06) | 0.75 | (0.50–1.12) | ||
| ≥48 cm | 1.00 | 1.00 | ||||
| Head circumference | 0.294 | 0.038 | ||||
| < −1SD | 1.21 | (0.85–1.73) | 1.47 | (1.02–2.11) | ||
| ≥ −1SD | 1.00 | 1.00 | ||||
| Type of birth | 0.532 | 0.403 | ||||
| Cesarean | 1.10 | (0.82–1.48) | 1.13 | (0.84–1.52) | ||
| Normal | 1.00 | 1.00 | ||||
|
| ||||||
| Level 3: Variables at 12 months | ||||||
|
| ||||||
| Head circumference | 0.319 | 0.656 | ||||
| < −0.5SD | 0.79 | (0.49–1.26) | 1.12 | (0.69–1.82) | ||
| ≥ −0.5SD | 1.00 | 1.00 | ||||
| BMI for age | 0.004 | 0.005 | ||||
| Normal | 1.00 | 1.00 | ||||
| Overweight / obese | 1.55 | (1.15–2.10) | 1.58 | (1.15–2.17) | ||
| Height for age | 0.485 | 0.835 | ||||
| ≤1SD | 1.00 | 1.00 | ||||
| >1SD | 1.17 | (0.75–1.84) | 0.95 | (0.60–1.50) | ||
*
adjusted for variables on the same or a higher level and child’s trial-group
SD - Standard Deviation