PURPOSE
The aims of this study were to examine the trend of quantitative study in Korean Journal of Adult Nursing published between 1989-2011 and to provide future directions for nursing research in adult health nursing.
METHODS
A total of 883 published articles were reviewed, and main subject and the methodology were analyzed using descriptive statistics.
RESULTS
The most frequently cited keywords were elderly, quality of life, depression, knowledge, stress and anxiety. The survey study was the most popular research design (67.6%) followed by experimental (26.5%), and methodological study (5.5%) design. Over 80% of studies with translated or developed instruments reported reliability for psychometric analysis, while only 18% of the studies reported validity of the instruments they used. In the periods of 2006~2011, significantly more studies utilized experimental design, obtained IRB approval and written consent, and included power analysis for sample size calculation. In recent experimental study, educational program and complimentary therapy were the two most frequently used interventions.
CONCLUSION
Through the analysis of nursing studies published in Korean Journal of Adult Nursing, we found the number of experimental studies has increased and methodological rigor has improved in recent years.

PURPOSE
The purpose of this study was to examine the effects of aroma oil inhalation using peppermint and bergamot on nausea vomiting and anorexia in cancer patients receiving chemotherapy. METHOD: Study subjects were 30 patients who had experienced nausea and vomiting when they had been hospitalized in K university hospital located in D city after receiving more than two Cisplatin combination chemotherapy treatments. Among them 15 patients were in the experimental group doing aroma oil inhalation and the other 15 patients were in the control group without aroma oil inhalation. The data were collected from February 1, 2002 to May 17, 2002. The data were analyzed with SPSS WIN 10.0 program using frequency, percentage, chi-square-test, t-test, Repeated Measures ANOVA. RESULTS: 1) The degree of nausea and vomiting in the experimental group with aroma oil inhalation using peppermint and bergamot were significantly lower than that of the control group. 2) The degree of anorexia in the experimental group with aroma oil inhalation using peppermint and bergamot were significantly lower than that of the control group. CONCLUSION: aroma oil inhalation was effective for relieving patients' nausea vomiting and anorexia receiving chemotherapy. Therefore, it is proposed that aroma oil inhalation should be applied as a supportive nursing arbitration method to relieve patients' nausea vomiting and anorexia who are receiving chemotherapy.