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Previous studies reported regional variations in in-hospital acute coronary syndrome (ACS) mortality, but the reasons for that were not clearly defined. We explored whether differences in patient characteristics could explain regional variation. The Improving Care for Cardiovascular Disease in China (CCC)-ACS project is an ongoing national registry and quality improvement project, involving 150 tertiary hospitals from 30 provinces across China. We applied a prediction model that included patient-specific variables to calculate the expected in-hospital mortality. For each province, we reported the observed, expected in-hospital mortality and the risk-adjusted ratio which is based on the observed divided by the expected mortality. From 2014 to 2018, 79 585 ACS patients were enrolled. The average in-hospital mortality was 1.8%. There was a wide variation in the in-hospital mortality among different provinces (0.2-3.9%). Patient characteristics explained part of this variation because of differences in the expected in-hospital mortality (0.7-2.8%). There was a substantial variation in the risk-adjusted ratio among provinces (0.2-3.5), which suggests that the variations in the mortality cannot be completely explained by the differences in patient characteristics. In conclusion, we observed a wide regional variation in mortality for ACS, part of which could be explained by the difference in patient characteristics. [ABSTRACT FROM AUTHOR]

We performed a systematic review and meta-analysis to evaluate the quality of life (QoL) of the empty-nest elderly in China. We searched five databases up to 20 November 2018, to identify all studies on the QoL of empty-nest elderly in China. Twenty-nine were included in the final review. Compared with the control group, the physiological function, psychological function, social function and total score of QoL of empty nests were lower than those of non-empty nests. In addition, meta-analysis showed that the empty nesters were lower than the non-empty nesters in General Health, Role Physical, Bodily Pain, Role Emotional and Vitality. The existing evidence showed that the QoL of the empty-nest elderly in China was to some extent lower than that of the non-empty nest elderly. [ABSTRACT FROM AUTHOR]

• Single-dose dupilumab pharmacokinetics (PK) were studied in 30 Chinese subjects. • Repeated-dose PK were studied in 82 Chinese adults with atopic dermatitis. • PK were comparable to non-Asians after accounting for body weight. Dupilumab, a fully human monoclonal antibody targeting IL-4Rα, has demonstrated rapid and sustained improvements in clinical outcomes in patients with atopic dermatitis (AD), asthma, and chronic rhinosinusitis with nasal polyps. In a phase 1, double-blind, ascending-dose study, 30 healthy Chinese adults were randomized to single subcutaneous doses of dupilumab 200, 300, 600 mg, or placebo. In a phase 3, double-blind study, 165 Chinese adults with AD were randomized to dupilumab 300 mg or placebo every 2 weeks. Following single doses of dupilumab 200, 300, and 600 mg in the phase 1 study, mean serum maximum concentrations (C max) were 25.4 ± 4.0, 37.2 ± 14.5, and 77.3 ± 19.0 mg/L, respectively. For a 1.5-fold increase in dupilumab dose, 1.31-, 1.73-, and 1.66-fold increases in C max , area under the curve to real time (AUC last), and extrapolated to infinity (AUC) were observed, respectively, while a 2-fold dose increase resulted in 2.17-, 2.81-, and 2.80-fold increases, respectively. In the phase 3 study, mean dupilumab trough concentrations were 78.8 ± 32.0 and 86.4 ± 33.6 mg/L at weeks 12 and 16, respectively. C max increased approximately proportionally to dose, while AUC and AUC last increased greater than proportionally. Dupilumab pharmacokinetics were generally comparable between Chinese and non-Asian healthy subjects (single dose) and between Chinese and non-Asian AD patients (repeated doses), with differences accounted for by body weight. As differences in exposure by weight are unlikely to be clinically relevant based on late-stage study results, no dose adjustment by ethnic origin or weight is required. [ABSTRACT FROM AUTHOR]