Purpose
This study's purpose was to identify the relationship between daily vitamin intake and blood glucose in cancer patients undergoing chemotherapy and identify factors affecting blood glucose.
Methods
This descriptive study included 134 cancer patients undergoing chemotherapy at a university hospital. Data were analyzed with descriptive statistics, independent T-test, one-way analysis of variance, Pearson's correlation coefficients, and stepwise multiple regression analysis using SPSS/WIN 27.0 version.
Results
The average blood glucose of the subjects was 128.13±37.34 mg/dL and 30.6% of the subjects had readings of over 140 mg/dL. Blood glucose varied significantly by sex, age, education level, exercise frequency, and comorbidity. Vitamins A, E, and C, thiamin, riboflavin, niacin, vitamin B6, folate, and biotin were negatively correlated with blood glucose. Factors affecting blood glucose were exercising 7 times a week (β=-.61, p<.001), 4 to 6 times a week (β=-.41, p<.001), 1 to 3 times a week (β=-.38, p<.001), age (β=.18, p=.016), and vitamin A intake (β=-.16, p<.043), with a total explanatory power of approximately 31.5%.
Conclusion
Nurses should provide patients undergoing chemotherapy with lifestyle interventions including exercise at least 3 days a week and appropriate vitamin A intake, especially for older patients, to prevent hyperglycemia.

PURPOSE
The purpose of this study was to evaluate whether the effect of the Internet diabetic education on plasma glucose in people with hyperglycemic diabetes. METHOD: A randomized design with control and experimental groups being assessed pre- and post-intervention was used. Twenty-two patients were randomly assigned to an intervention group and 21 to a control group. Participants were requested to input the blood glucose level weekly in http://www.biodang.com by cellular phone or wire Internet for 3 months. The researcher sends optimal recommendations to each patient using short message service(SMS) of cellular phone and wire Internet weekly. RESULTS: Patients in the intervention group had a mean decrease of 1.3% in glycosylated haemoglobin (HbA1c) levels and those in the control group had no significant difference. There was a significant mean change in 2-hour postprandial blood glucose(2HPPG) for the intervention group, with a mean change of -75.2mg/dl. The mean change in the control group was, however, not significant. CONCLUSION: These findings indicated that a web-based intervention using SMS of cellular phone improved HbA1c and 2HPPG.