Development trend of primary healthcare after health reform in China: a longitudinal observational study by Hui Li, Jie Feng, Zuxun Lu, Yanhong Gong, Xuan Zhou, Guopeng Zhang, Xiaoxv Yin, Jianxiong Wu

“…Nevertheless, there have been few studies focusing on the strengthening of primary healthcare in Chinese health system.Design This study was a longitudinal observational study.Primary and secondary outcome measures The data of this study came from China Health Statistical Yearbook (2009–2018). …”
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The NIMO Scandinavian Study: A Prospective Observational Study of Iron Isomaltoside Treatment in Patients with Iron Deficiency by Svein Oskar Frigstad, Anne Haaber, Antal Bajor, Jan Fallingborg, Per Hammarlund, Ole K. Bonderup, Håkan Blom, Terje Rannem, Per M. Hellström

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Atherogenic index of plasma and coronary artery disease: a systematic review and meta-analysis of observational studies by Ramin Assempoor, Mohammad Shahabaddin Daneshvar, Aryan Taghvaei, Alireza Sattari Abroy, Amir Azimi, John R. Nelson, Kaveh Hosseini

“…Results Fifty-one observational studies were included in this study. Patients with higher AIP were more likely to have CAD (odds ratio (OR): 2.79, 95% CI 1.75–4.45, P < 0.00001). …”
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Predicting Cognitive Decline in Parkinson’s Disease with Mild Cognitive Impairment: A One-Year Observational Study by Pei-Hao Chen, Fang-Yu Cheng, Shih-Jung Cheng, Jin-Siang Shaw

“…We conducted an observational study to investigate clinical predictors of cognitive decline in patients with mild cognitive impairment (MCI), with a focus on patients with Parkinson’s disease (PD) and Alzheimer’s disease (AD). …”
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Exploring Chronic Pain in Hemodialysis Patients: An Observational Study Based on the New IASP Classification for ICD-11 by Vittorio Schweiger, Martina Cacciapuoti, Marta Nizzero, Salvatore Simari, Gianmarco Lombardi, Leonardo Gottin, Lisa Stefani, Alvise Martini, Giustino Varrassi, Gabriele Finco, Enrico Polati, Giovanni Gambaro

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Perioperative outcomes of video-assisted versus right anterior thoracotomy mitral valve replacement: an observational study by Gehad Awad, Fetoh Alaaeldin Fetoh, Noureldin Noaman Gwely, Usama Hamza, Sameh Amer, Yomna Mohammed Yehya, Amr Abdellateef

“…Abstract Background Minimally invasive mitral valve surgery has been introduced as a safe alternative to full sternotomy through smaller chest wall incisions to reduce the potential sternal complications in addition to the favorable aesthetic effect. This observational study has been designed to evaluate and compare operative and short-term postoperative outcomes of video-assisted versus right anterior thoracotomy mitral valve replacement. …”
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Compliance with face mask use during the COVID-19 pandemic: a community observational study in Singapore by Sean Wei Xiang Ong, Ying Wei Tang, Kyaw Zaw Linn, Xiao Wei Huan, Allie Lim, Chu Ying Poon, Danielle Hui Ru Tan, Nur Hafizah Binte Hamed, Sharifah Farhanah Binte Syed Husen, Clara Chong Hui Ong, Monica Chan, Shawn Vasoo, Yee-Sin Leo, Oon-Tek Ng, Kalisvar Marimuthu

“…However, data on the factors affecting mask use are lacking. In this observational study, we evaluated the proportion of and factors influencing face mask use and related hygiene practices. …”
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Effects of the Implementation of an Emergency Surgical Pattern in Patients with Rhegmatogenous Retinal Detachment: A Retrospective Observational Study by Ziye Chen, Kai Gao, Kunbei Lai, Wenbin Zheng, Jizhu Li, Yaping Liu, Baoyi Liu, Xiaoyue Wei, Yuan Ma, Zitong Chen, Rebiya Tuxun, Tao Li

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Results of multicenter observation study on application of international questionnaire GerdQ for diagnostics of gastroesophageal reflux disease by V. O. Kaybysheva, Yu. A. Kucheryavyy, A. S. Trukhmanov, O. A. Storonova, M. Yu. Konkov, I. V. Mayev, V. T. Ivashkin

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Reply to Editor: Serum zinc levels in hemodialysis and peritoneal dialysis patients: A retrospective observational study by Mehdi Nematbakhsh

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Nurse compliance with a protocol for safe injectable medication administration: comparison of two multicentre observational studies by Martine de Bruijne, Peter Spreeuwenberg, Cordula Wagner, Bernadette Schutijser, Joanna Ewa Klopotowska, Irene Jongerden

“…The aim of this second evaluation study was to determine whether nurse compliance had changed over a 4-year period, what factors were associated over time with protocol compliance and which strategies have been implemented by hospitals to increase protocol compliance.Methods In this prospective observational study, conducted between November 2015 and September 2016, nurses from 16 Dutch hospitals were directly observed during intravenous medication administration. …”
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Risk of bias and confounding of observational studies of Zika virus infection: A scoping review of research protocols. by Ludovic Reveiz, Michelle M Haby, Ruth Martínez-Vega, Carlos E Pinzón-Flores, Vanessa Elias, Emma Smith, Mariona Pinart, Nathalie Broutet, Francisco Becerra-Posada, Sylvain Aldighieri, Maria D Van Kerkhove

“…<h4>Results</h4>Observational studies of ZIKV face an array of challenges, including measurement of exposure and outcomes (microcephaly and Guillain-Barré Syndrome). …”
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Determining the Difficulties Experienced by Patients in Activities of Daily Living After Appendectomy: A Prospective Observational Study by Hülya Bulut, Gamze Bozkul

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Efficacy of vericiguat in patients with chronic heart failure and reduced ejection fraction: a prospective observational study by Yinge Zhan, Liu Li, Jie Zhou, Yishan Ma, Xuchong Guan, Suo Wang, Ya Chang

“…Methods A prospective observational study was conducted from May 2022 to May 2023, focusing on patients with HFrEF admitted to our hospital. …”
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Clinico-demographical Profile of Pelvis and Acetabular Fracture Presenting in Tertiary Care Center of Nepal: An Observational Study by Ranjib Jha, Santosh Thapa, Asish Rajthala

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Clinical, Hematological Profile, and Birth Outcomes of Neonates of Mothers with Hypertension Complicating Pregnancy in India—An Observational Study by Cherukuri Nirmala, Manohar P. Kankati, Paramesh Pandala, Kotha Rakesh

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Real-Time Ultrasound-Guided Spinal Anaesthesia: A Prospective Observational Study of a New Approach by P. H. Conroy, C. Luyet, C. J. McCartney, P. G. McHardy

“…To assess the feasibility of performing spinal anaesthesia under real-time ultrasound guidance in routine clinical practice we conducted a single center prospective observational study among patients undergoing lower limb orthopaedic surgery. …”
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Capnography as a tool for triaging and diagnosis of diabetic ketoacidosis in the emergency department: A prospective observational study by Suhrith Bhattaram, Varsha Sambhaji Shinde, Princy Panthoi Khumujam, Anjeeth Puthoor Anilkumar, Dhruva Kumar Reddy

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Corrigendum to “Retrospective Observational Study on Rebamipide Ophthalmic Suspension on Quality of Life of Dry Eye Disease Patients” by Yuri Sakane, Masahiko Yamaguchi, Atsushi Shiraishi

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Implementing adaptive e-learning for newborn care in Tanzania: an observational study of provider engagement and knowledge gains by Peter Andrew Meaney, Christine Lynn Joyce, Ambrose Agweyu, Joseph R Mwanga, Marc Berg, Adolfine Hokororo, Hanston Ndosi, Alex Dahlen, Theopista Jacob, Florence Salvatory Kalabamu, Rishi Mediratta, Boris Rozenfeld, Zachary Haines Smith, Neema Chami, Namala Mkopi, Castory Mwanga, Enock Diocles

“…The objectives of this study were to (1) assess implementation success with use of in-person support and nudging strategy and (2) describe baseline provider knowledge and metacognition.Methods 6-month observational study at one zonal hospital and three health centres in Mwanza, Tanzania. …”
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