Question: is this a 2) strong advice, 1) weak advice 0) no advice?

The prevalence found in this study is similar to the prevalence of self-medication (30%) reported in previous study by Simon et al, [10], and lower prevalence than a study by Jain et al, [11], where approximately three-quarter of the participants (72%) practised self-medication. 
user
This is no advice
assistant