Peres Marco Aurelio, Liu Pingzhou, Demarco Flavio Fernando, Silva Alexandre Emidio Ribeiro, Wehrmeister Fernando Cesar, Menezes Ana Maria, Peres Karen Glazer
Australian Research Centre for Population Oral Health, Adelaide Dental School, The University of Adelaide, Adelaide, Australia.
Postgraduate Program in Dentistry, Universidade Federal de Pelotas - UFPel, Pelotas, RS, Brazil.
Braz Oral Res. 2018;32:e36. doi: 10.1590/1807-3107bor-2018.vol32.0036. Epub 2018 May 7.
We aimed to analyze the effects of family income trajectories on the increase in dental caries from childhood to young adulthood. Data from the 1993 Pelotas (Brazil) birth cohort study, in which dental caries was measured at ages 6, 12, and 18 years, were analyzed. Family income of 302 participants was assessed at birth, and at 4, 11, 15, and 18 years of age. Mother's education, toothbrushing frequency, dental visiting, dental caries in primary dentition, and birth weight were covariates. A latent class growth analysis was conducted to characterize trajectories of time-varying variables. The influence of income trajectories on the increase in dental caries from age 6 to age 18 was evaluated by a generalized linear mixed model. After adjustment, the increases in numbers of decayed and missing teeth (DMT) from age 6 to age 18 were associated with family income trajectory. The incident rate ratios (IRR) of DMT compared with the group of stable high incomes were 2.36 for stable low incomes, 1.71 for downward, and 1.64 for upward. The IRR of teeth being filled in stable low-income groups compared with stable high-income groups was 0.55. Family income mobility affected treatment patterns of dental caries. Differences across income trajectory groups were found in the components of dental caries indices rather than in the experience of disease.
我们旨在分析家庭收入轨迹对从童年到青年期龋齿增加情况的影响。对1993年佩洛塔斯（巴西）出生队列研究的数据进行了分析，该研究在6岁、12岁和18岁时测量了龋齿情况。评估了302名参与者在出生时以及4岁、11岁、15岁和18岁时的家庭收入。母亲的教育程度、刷牙频率、看牙次数、乳牙龋齿情况和出生体重作为协变量。进行了潜在类别增长分析以描述随时间变化变量的轨迹。通过广义线性混合模型评估收入轨迹对6岁至18岁龋齿增加的影响。调整后，6岁至18岁龋失牙（DMT）数量的增加与家庭收入轨迹有关。与稳定高收入组相比，稳定低收入组DMT的发病率比（IRR）为2.36，下降组为1.71，上升组为1.64。与稳定高收入组相比，稳定低收入组补牙的IRR为0.55。家庭收入流动性影响龋齿的治疗模式。在龋齿指数的组成部分而非疾病经历方面发现了收入轨迹组之间的差异。
