Table 3.
Frequency of brushing, and crude, adjusted and final model odds ratios (ORs) for brushing once a day or less
| Variable | % Brushing less than twice a day | % Brushing at least twice a day | Crude OR | Adjusted OR* | Final Model OR (Forward LR) |
|---|---|---|---|---|---|
| Gender | |||||
| Male | 217 (36.5) | 377 (63.5) | 1.874 (1.474–2.383) | 2.124 (1.616–2.793) | |
| Female† | 168 (23.5) | 547 (76.5) | |||
| Health region | |||||
| Lisbon† | 61 (32.8) | 131 (68.4) | |||
| North | 56 (29.2) | 136 (70.8) | 1.050 (0.682–1.616) | 1.044 (0.674–1.615) | 0.931 (0.564–1.536) |
| Centre | 59 (30.7) | 133 (69.3) | 0.928 (0.600–1.437) | 0.936 (0.602–1.457) | 0.750 (0.445–1.265) |
| Alentejo | 54 (29.3) | 130 (70.7) | 0.936 (0.602–1.456) | 0.888 (0.568–1.388) | 0.668 (0.386–1.158) |
| Algarve | 41 (22.3) | 143 (77.7) | 0.646 (0.407–1.027) | 0.606 (0.379–0.968) | 0.634 (0.369–1.090) |
| Azores | 52 (28.4) | 131 (71.6) | 0.895 (0.574–1.395) | 0.828 (0.528–1.299) | 0.497 (0.287–0.861) |
| Madeira | 62 (34.1) | 120 (65.9) | 1.165 (0.755–1.797) | 1.143 (0.737–1.772) | 0.787 (0.465–1.332) |
| Type of residency | |||||
| Rural area | 99 (37.8) | 163 (62.2) | 1.896 (1.397–2.574) | 1.953 (1.434–2.661) | 1.647 (1.169–2.321) |
| Peri-urban area | 122 (32.9) | 249 (67.1) | 1.530 (1.155–2.022) | 1.518 (1.145–2.012) | 1.926 (1.319–2.812) |
| Urban area† | 164 (24.3) | 512 (75.7) | |||
| Mother’s educational level | |||||
| Less than high school | 206 (37.1) | 349 (62.9) | 2.284 (1.582–3.297) | 2.395 (1.615–3.474) | 2.139 (1.7446–3.164) |
| High school | 81 (21.1) | 302 (78.9) | 1.038 (0.691–1.558) | 1.054 (0.699–1.590) | 1.032 (0.677–1.575) |
| College degree† | 46 (20.5) | 178 (79.5) | |||
| Father’s educational level | |||||
| Less than high school | 223 (34.6) | 421 (65.4) | 2.724 (1.761–4.213) | 2.795 (1.800–4.314) | |
| High school | 63 (21.6) | 228 (78.4) | 1.421 (0.869–2.323) | 1.391 (0.847–2.284) | |
| College degree† | 28 (16.3) | 144 (83.7) | |||
| Mother’s employment status | |||||
| Worker† | 264 (27.3) | 704 (72.7) | |||
| Unemployed | 68 (35.2) | 125 (64.8) | 1.451 (1.046–2.013) | 1.462 (1.050–2.037) | |
| Domestic | 45 (37.8) | 74 (62.2) | 1.622 (1.091–2.411) | 1.650 (1.105–2.466) | |
| Other | 3 (15.8) | 16 (84.2) | 0.500 (0.145–1.730) | 0.488 (0.140–1.704) | |
| Father’s employment status | |||||
| Worker† | 285 (26.6) | 792 (73.5) | |||
| Unemployed | 66 (43.1) | 87 (56.9) | 2.108 (1.489–2.984) | 2.194 (1.542–3.121) | 1.671 (1.127–2.478) |
| Others | 17 (41.5) | 24 (58.5) | 1.968 (1.042–3.718) | 2.102 (1.103–4.006) | 1.520 (0.689–3.350) |
*
*Adjusted by gender; †Reference class; LR - Likelihood ratio.
Statistical significant results are highlighted in bold.