Associations between Self-medication, Health Literacy, and Self-perceived Health Status: A Community-Based Study

Although the frequency of self-medication has been well-documented in the public health literature, but no study has examined the relationship between health literacy and self-medication yet. This study was aimed to investigating the relationship between health literacy and self-medication in a community-based study.

This cross-sectional study was conducted on 924 adults to survey association between health literacy and self-medication among peoples in Ardabil city in 2014 who were selected using a multi-stage random sampling method. Health literacy was measured by the test of functional health literacy in adults and general health status was measured by the 12-item General Health Questionnaire, and self-reported self-medication (overall, sedative, antibiotic and herbal) in last 3 months was assessed. All statistical analysis was performed using the SPSS version 18 and a P < 0.05 was considered significant.

The mean age and weight of respondents were 37 years and 74.7 kg, respectively. The prevalence of self-medication was 61.6%, and the percentage of self-administering antibiotics, sedative, and herbal medicines were 40%, 54.4%, and 59.1% in the last 3 months, respectively. Significant relationship was found between of total health literacy and general health status with self-medication. The prevalence of self-medication among participants with poor and very poor self-rated physical and mental health was significantly higher than other participants (P < 0.001).

Self-medication had a significant relationship with health literacy and health status. Therefore, the design and implementation of training programs are necessary to increase the perception on the risk of self-medication.