Table 2. Poisson regression for oral health literacy and socio-demographic, family and behavioral characteristics in adolescents aged 15 to 19 years.
| Variables* | Oral health literacy | Bivariate | Multivariate | ||
|---|---|---|---|---|---|
| Mean (SD) | Unadjusted Rate Ratio(RR)** | Adjusted Rate Ratio(RR) | |||
| Sex | |||||
| Male | 20.23 (5.30) | 1.00 | – | – | |
| Female | 20.43 (4.89) | 1.01 (0.97–1.04) | 0.597 | – | – |
| Mother’s schooling level | |||||
| ≤ 8 years of study | 18.60 (5.51) | 1.00 | 1.00 | ||
| > 8 years of study | 21.50 (4.35) | 1.15 (1.11–1.20) | < 0.001 | 1.07 (1.03–1.12) | 0.001 |
| Monthly family income | |||||
| ≤ US$ 240 | 19.11 (5.05) | 1.00 | 1.00 | ||
| > US$ 240 | 21.68 (4.63) | 1.13 (1.08–1.18) | < 0.001 | 1.04 (1.01–1.09) | 0.049 |
| Parent’s/Guardian’s age | |||||
| ≤ 42 years | 20.09 (5.02) | 1.00 | – | – | |
| > 42 years | 20.61 (5.10) | 1.02 (0.99–1.06) | 0.163 | – | – |
| Number of residents in home | |||||
| ≤ 5 | 20.68 (4.86) | 1.09 (1.03–1.15) | 0.001 | 1.07 (1.01–1.14) | 0.032 |
| > 5 | 18.87 (5.69) | 1.00 | 1.00 | ||
| Ethnicity/skin color | |||||
| White | 21.54 (5.23) | 1.08 (1.04–1.12) | < 0.001 | 1.05 (1.01–1.10) | 0.010 |
| Non-white | 19.88 (4.91) | 1.00 | 1.00 | ||
| Marital status of parents/guardians | |||||
| Married | 20.97 (5.02) | 1.06 (1.03–1.10) | < 0.001 | 1.04 (1.01–1.09) | 0.040 |
| Single/divorced/widowed | 19.61 (5.02) | 1.00 | 1.00 | ||
| Position in family | |||||
| Oldest child | 20.88 (4.91) | 1.02 (0.98–1.06) | 0.240 | – | – |
| Middle child | 19.43 (4.71) | 0.95 (0.91–1.01) | 0.057 | – | |
| Youngest child | 20.36 (5.41) | 1.00 | – | – | |
| Use of legal drugs | |||||
| No | 20.26 (5.07) | 1.00 | – | – | |
| Yes | 20.50 (5.04) | 1.01 (0.97–1.04) | 0.526 | – | – |
| Use of illegal drugs | |||||
| No | 20.36 (5.04) | 1.01 (0.93–1.08) | 0.829 | – | – |
| Yes | 20.20 (5.32) | 1.00 | – | – | |
| Type of dental service used | |||||
| Public | 19.13 (5.06) | 1.00 | 1.00 | ||
| Private | 21.50 (4.46) | 1.12 (1.08–1.16) | < 0.001 | 1.08 (1.03–1.13) | < 0.001 |
| Family cohesion | |||||
| Enmeshed | 24.73 (3.36) | 1.26 (1.17–1.35) | < 0.001 | 1.21 (1.12–1.30) | < 0.001 |
| Connected | 21.07 (4.98) | 1.07 (1.02–1.13) | 0.004 | 1.01 (0.95–1.07) | 0.727 |
| Separated | 20.79 (4.93) | 1.06 (1.02–1.10) | 0.003 | 1.03 (0.98–1.08) | 0.153 |
| Disengaged | 19.57 (5.09) | 1.00 | 1.00 | ||
| Family adaptability | |||||
| Rigid | 21.11 (5.06) | 1.09 (1.02–1.16) | 0.005 | 1.11 (1.04–1.19) | 0.001 |
| Structured | 20.81 (4.57) | 1.07 (1.02–1.13) | 0.007 | 1.06 (1.01–1.12) | 0.043 |
| Flexible | 20.24 (4.98) | 1.04 (0.99–1.10) | 0.101 | 1.03 (0.97–1.10) | 0.262 |
| Chaotic | 19.34 (5.63) | 1.00 | 1.00 | ||
* Independent variables defined using directed acyclic graph (DAG)
** Unadjusted Poisson regression for socio-demographic, family and behavioral characteristics and oral health literacy among adolescents aged 15 to 19 years
RR = rate ratio