PURPOSE: This study was conducted to identify and analyze the trends of theory-based research published in Asian Oncology Nursing (AON) from 2011 to 2017. METHODS: We analyzed 22 theory-based studies taken from among the 232 studies published in AON for 7years. We analyzed the framework developed by researchers, descriptive summaries of theory, keyword classification of nursing meta-paradigms, the generic character of the studies, and the type of research designs. RESULTS: A total of 23 theories were applied in the 22 (9.5%) studies. ‘Nursing’ was the most prevalent field of study (34.8%). In the field of study of theory, nursing theory was the largest with eight (34.8%), and in the method of theory utilization, all 22 studies were theoretical applications 3 middle-range theories were most prevalent. In the keyword classification using meta-paradigm in nursing, we found 83 key words. Among them, ‘Health’ related key words were most frequent (53), followed by ‘Cancer’ keywords (13). CONCLUSION: AON has a high ratio of theoretical study compared to other journals, but the ratio is still less than 10%, which is still weak. Therefore, it is believed that the attention to, utilization of, application, and institutional establishment of nursing theory should be necessary.
Asian Continental Ancestry Group ; Classification ; Humans ; Methods ; Models, Theoretical ; Nursing ; Nursing Theory ; Oncology Nursing ; Research Design

Background: The impact of reflux esophagitis on the decline of lung function has been rarely reported. This study was performed to evaluate the association between erosive reflux esophagitis and lung function changes. Methods: We included patients with normal lung function who underwent esophagogastroduodenoscopy for health screening from a health screening center. Patients with persistent erosive reflux esophagitis on two discrete endoscopic examinations were designated as the erosive reflux esophagitis group. We also selected patients without erosive reflux esophagitis and matched them 1:4 with patients from the erosive reflux esophagitis group. We estimated annual forced expiratory volume in 1 second (FEV1 ) and forced vital capacity (FVC) changes from baseline and compared these estimates by the linear mixed regression model. We also estimated the biannual incidence of chronic obstructive pulmonary disease (COPD). Results: In total, 1,050 patients (210 patients with erosive reflux esophagitis, and 840 matched controls) were included. The median follow-up duration for spirometry was six years. In patients with erosive reflux esophagitis, mild reflux esophagitis (A grade) was most common (165 patients, 78.6%). The adjusted annual FEV1 change in patients with erosive reflux esophagitis was −51.8 mL/yr, while it decreased by 46.8 mL/yr in controls (P = 0.270).The adjusted annual FVC decline was similar between the two groups (−55.8 vs. −50.5 mL/ yr, P = 0.215). The estimated COPD incidence during the follow-up period was not different between the erosive reflux esophagitis and control groups. Conclusion In patients with normal lung function, the presence of erosive reflux esophagitis did not affect the annual declines in FEV1 or FVC.

Background: The impact of reflux esophagitis on the decline of lung function has been rarely reported. This study was performed to evaluate the association between erosive reflux esophagitis and lung function changes. Methods: We included patients with normal lung function who underwent esophagogastroduodenoscopy for health screening from a health screening center. Patients with persistent erosive reflux esophagitis on two discrete endoscopic examinations were designated as the erosive reflux esophagitis group. We also selected patients without erosive reflux esophagitis and matched them 1:4 with patients from the erosive reflux esophagitis group. We estimated annual forced expiratory volume in 1 second (FEV1 ) and forced vital capacity (FVC) changes from baseline and compared these estimates by the linear mixed regression model. We also estimated the biannual incidence of chronic obstructive pulmonary disease (COPD). Results: In total, 1,050 patients (210 patients with erosive reflux esophagitis, and 840 matched controls) were included. The median follow-up duration for spirometry was six years. In patients with erosive reflux esophagitis, mild reflux esophagitis (A grade) was most common (165 patients, 78.6%). The adjusted annual FEV1 change in patients with erosive reflux esophagitis was −51.8 mL/yr, while it decreased by 46.8 mL/yr in controls (P = 0.270).The adjusted annual FVC decline was similar between the two groups (−55.8 vs. −50.5 mL/ yr, P = 0.215). The estimated COPD incidence during the follow-up period was not different between the erosive reflux esophagitis and control groups. Conclusion In patients with normal lung function, the presence of erosive reflux esophagitis did not affect the annual declines in FEV1 or FVC.