Figure 2From: Prevalence of use of non-prescription analgesics in the Norwegian HUNT3 population: Impact of gender, age, exercise and prescription of opioidsTwo questions regarding use of over-the-counter (OTC) analgesics were included in Questionnaire 2 in population-based health surveys in the the Nord-Trøndelag Health Study (HUNT3). a) Question on type of OTC medicines and b) Question on frequency of use for headache pain and pain in muscle/joints.Back to article page