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Several transformation steps are generic and thus can be reused. As such, new types of data can be incorporated into the modular FHIR PIT pipeline by simply reusing generic steps or adding new ones. We validated FHIR PIT in the context of a driving use case designed to investigate the impact of airborne pollutant exposures on asthma. Specifically, we replicated published findings demonstrating racial disparities in the impact of airborne pollutants on asthma exacerbations. CONCLUSIONS While FHIR PIT was developed to support our driving use case&nbsp;on asthma, the software can be used to integrate any type and number of spatiotemporal data sources at a level of granularity that enables individual-level study. We expect FHIR PIT to facilitate research in environmental health and numerous other biomedical disciplines.BACKGROUND Preoperative anxiety is an unpleasant state of tension that may impact patients' post-operative pain and satisfaction. The level of preoperative anxiety should be routinely identified. The Amsterdam Preoperative Anxiety and Information Scale (APAIS) is a self-reported questionnaire that is used to quickly assess preoperative anxiety and information needs with good psychometric properties. OBJECTIVES To validate the Chinese version of the Amsterdam Preoperative Anxiety and Information Scale (APAIS) and to explore coping strategies used by patients in dealing with surgery and anesthetic. METHODS The cross-cultural validation of APAIS involved the translation of a Chinese version of APAIS and an investigation of its psychometric properties and clinical applicability. Forward-back translation and a pilot study were performed to produce a Chinese adaptation of APAIS. The inpatients of the orthopedic, otolaryngology, and general surgery department scheduled for general anesthesia surgery were enrolled tos-of-fit 0.966). The APAIS anxiety score significantly correlated with STAI-S (r = 0.717, P  less then  0.01) and VAS-A (r = 0.720, P  less then  0.01). For the three coping strategies, preoperative anxiety had a low correlation with confrontation (r = 0.33, P  less then  0.01) and resignation (r = 0.22, P  less then  0.05). CONCLUSIONS The Chinese version of APAIS is a valid and reliable instrument for assessing preoperative anxiety. Use of this measurement tool for Chinese patients is feasible and shows promising results.BACKGROUND Acute kidney injury (AKI) is a common complication among human immunodeficiency virus (HIV)-infected patients resulting in increased morbidity and mortality. Continuous renal replacement therapy (CRRT) is a useful method and instrument in critically ill patients with fluid overload and metabolic disarray, especially in those who are unable to tolerate the intermittent hemodialysis. However, the epidemiology, influence factors of CRRT and mortality in patients with HIV/AIDS are still unclear in China. This study aims to study the HIV-infected patients admitted in Intensive Care Unit (ICU) and explore the influence factors correlated with CRRT and their prognosis. [https://www.selleckchem.com/products/Y-27632.html https://www.selleckchem.com/products/Y-27632.html] METHODS We performed a retrospective case-control study in the ICU of the Beijing Ditan Hospital Capital Medical University. From June 1, 2005 to May 31, 2017, 225 cases were enrolled in this clinical study. RESULTS 122 (54.2%) patients were diagnosed with AKI during their stay in ICU, the number and percentage of AKI stage 1, 2 and 3 were erences (p = 0.595). CONCLUSIONS There is a high incidence of AKI in HIV-infected patients admitted in our ICU. Patients with severe AKI were more prone to be admitted for CRRT and have a consequent poor prognosis.BACKGROUND Pneumocystis pneumonia (PCP) is a life-threatening fungal infection that can occur in kidney transplantation (KT) recipients. A growing number of KT recipients are receiving perioperative treatment with rituximab, which is associated with prolonged B-cell depletion and possible risk of PCP occurrence; however, the optimal prophylaxis duration according to rituximab treatment is yet unknown. We compared the occurrence of PCP and the duration of prophylaxis in KT recipients according to rituximab treatment. METHODS We retrospectively analyzed 2110 patients who underwent KT between January 2009 and December 2016, who were divided into non-Rituximab group (n = 1588, 75.3%) and rituximab group (n = 522, 24.7%). RESULTS In the rituximab group, the estimated number needed to treat (NNT) for prophylaxis prolongation from 6 to 12 months was 29.0 with a relative risk reduction of 90.0%. In the non-rituximab group, the estimated NNT value was 133.3 and the relative risk reduction was 66.4%. Rituximab treatment (hazard ratio (HR) = 3.09; P  less then  &nbsp;0.01) and acute rejection (HR = 2.19; P = 0.03) were significant risk factors for PCP in multivariate analysis. CONCLUSIONS Our results suggest that maintaining PCP prophylaxis for 12 months may be beneficial in KT recipients treated with rituximab for desensitization or acute rejection treatment.BACKGROUND Point of care serum lactate measurement is emerging as an adjunct to prehospital clinical assessment and has the potential to guide triage and advanced treatment decision-making. In this study we aimed to assess which factors potentially affect prehospital lactate levels. METHODS We performed a retrospective cohort study of all trauma patients attended by the Air Ambulance, Kent, Surrey &amp; Sussex (AAKSS) between July 2017 and April 2018 in whom a pre-hospital lactate was measured. Lactate was measured before AAKSS treatments were commenced, but generally after prehospital treatment by ground ambulance crews was initiated. Primary endpoint of interest was the association of various patient- and treatment characteristics with prehospital lactate levels. RESULTS During the study period, lactate was measured in 156 trauma patients. Median lactate was 3.0 [2.0-4.1] mmol/l. Patients with an elevated lactate more often had deranged indices of end organ perfusion- and oxygenation (shock index 0.80 [0.58-1.03] vs 0.61 [0.40-0.82], p  less then  0.001, SpO2 96 [89-100%] vs 98 [96-100%], p = 0.025). They more often suffered from head injuries (62% vs 41%, p = 0.008), and received less analgesia prior to arrival of the AAKSS team (51.6% vs 67.2%, p = 0.03). In multivariate analysis, indices of end organ perfusion- and oxygenation only explained 15% of the variation in lactate levels. CONCLUSIONS Prehospital lactate levels are not solely associated with indices of end organ perfusion- and oxygenation. Injury type, treatments given on scene and many other (unmeasured) factors likely play an important role as well. This should be taken into account when lactate is used in clinical algorithms to guide prehospital triage or treatment.