Effect of pivotal response training for children with autism spectrum disorder： a systematic review

The purpose of this article is to systematically review the effectiveness of pivotal response training （PRT） for children with autism spectrum disorder （ASD）， so as to provide evidence-based guidance for the implementation of effective PRT for children with ASD. Randomized controlled trials （RCTs） investigating the effectiveness of PRT for children with ASD were collected， and the methodological quality of the trails was evaluated using the Cochrane Collaboration's tool for risk of bias assessment. A total of 6 RCTs were included in this review. Then the empirical findings including the implementation of PRT and the role of PRT in improving general social skills and verbal communication skills of children with ASD were elaborated. And its limitations and possible future research directions were also summarized. ［Funded by Special Project for Construction of Innovation Environment in Autonomous Region： Construction of Science and Technology Innovation Base （number， PT2306）

Association of red cell distribution width (RDW) and the RDW to platelet count ratio with cardiovascular disease among US adults: a cross-sectional study based on the National Health and Nutrition Examination Survey 1999–2020

Objective To investigate the association between red cell distribution width (RDW) and the RDW to platelet count ratio (RPR) and cardiovascular diseases (CVDs) and to further investigate whether the association involves population differences and dose–response relationships.Design Cross-sectional population-based study.Setting The National Health and Nutrition Examination Survey (1999–2020).Participants A total of 48 283 participants aged 20 years or older (CVD, n=4593; non-CVD, n=43 690) were included in this study.Primary and secondary outcome measures The primary outcome was the presence of CVD, while the secondary outcome was the presence of specific CVDs. Multivariable logistic regression analysis was performed to determine the relationship between RDW or the RPR and CVD. Subgroup analyses were performed to test the interactions between demographics variables and their associations with disease prevalence.Results A logistic regression model was fully adjusted for potential confounders; the ORs with 95% CIs for CVD across the second to fourth quartiles were 1.03 (0.91 to 1.18), 1.19 (1.04 to 1.37) and 1.49 (1.29 to 1.72) for RDW (p for trend <0.0001) compared with the lowest quartile. The ORs with 95% CIs for CVD across the second to fourth quartiles were 1.04 (0.92 to 1.17), 1.22 (1.05 to 1.42) and 1.64 (1.43 to 1.87) for the RPR compared with the lowest quartile (p for trend <0.0001). The association of RDW with CVD prevalence was more pronounced in females and smokers (all p for interaction <0.05). The association of the RPR with CVD prevalence was more pronounced in the group younger than 60 years (p for interaction=0.022). The restricted cubic spline also suggested a linear association between RDW and CVD and a non-linear association between the RPR and CVD (p for non-linear <0.05).Conclusion There are statistical heterogeneities in the association between RWD, RPR distributions and the CVD prevalence, across sex, smoking status and age groups