Prescribing Pattern and Medication Related Problems in Hospitalized Diabetic Patients: A Hospital-Based Study

Aim: To assess the drug-related problems (DRPs) and World Health Organization (WHO) core prescribing indicators among hospitalized diabetic patients.

Methodology: A prospective, observational study was made among the diabetic inpatients of the General Medicine Department of a tertiary care hospital located in Tirupati, Andhra Pradesh, India. A suitable data collection form was used to collect the data pertaining to demographics, clinical variables, DRPs, and WHO prescribing indicators. Descriptive statistics like frequency, mean, and percentage were used to represent the demographics, distribution of DRPs, and prescribing indicators in the study. Inferential statistics like Chi-square test was employed to test the significant association between the demographics and occurrence of DRPs.

Results: A total of 199 diabetic patients were enrolled in this study. The mean age of the study participants was 55.8±11.3. The study shows the prevalence of DRPs in diabetic in-patients was 48.7%. The most commonly identified DRPs are drug interactions (53; 45.3%), adverse drug reactions (24; 20.5%), and untreated indication (21; 17.9%). Patient characteristics like, advanced age (≥60 years), presence of co-morbid condition, comprising more than 5 drugs in prescription, and stay in the hospital for more than four days are significantly associated with the development of DRPs. Findings of WHO indicators show the average number of drugs, percentage of drugs prescribed by the generic name, percentage of encounters with an antibiotic, injection, and from essential drug list have deviated from standards of WHO.

Conclusion: The prevalence of DRPs in diabetic in-patients was 48.7%. Drug interactions and adverse drug reactions are the most common DRPs found in our study. Developing the drug policy guidelines focused on factors associated with DRP and WHO prescribing indicators may reduce the burden of DRPs and improves patient outcomes.