[Analysis of latent class and heterogeneous associations of oral health behaviors with preschool children caries].

Purpose: To determine the latent class and heterogeneous associations of oral health behaviors (OHB) with caries in preschool children aged 3-6 years, and to develop effective oral health interventions for improving their health status.

Methods: Latent class analysis(LCA) was applied to classify eight OHBs in three dimensions: oral hygiene, dietary habits, and preventive protection in 595 preschool children. Optimal classes were determined using model fitting and explanatory metrics, and marginal effects were estimated using bivariate association and multivariate regression models.

[Effect of Guliu capsule combined with 89Sr therapy on metastatic bone tumor].

Objective: To evaluate the therapeutic effects of Guliu capsule (GLC) combined with 89Sr in treating metastatic bone tumors.

Methods: On the basis of random sampling and grouping, 50 patients with metastatic bone tumors were selected to receive combined treatment with GLC and (89)Sr with another 50 patients recruited for (89)Sr treatment alone. The therapeutic effect of the therapies were evaluated according to the relief of ostalgia and quality-of life (QOF), local bone metabolism and hematopoietic function of the bone marrow.