Radar plot of the distributions of the participants’ OAB characteristic symptom scores amongst the identified clusters. The distribution of participants’ responses to each OAB symptom question was range standardised on a 0–1 scale were 0 represents the lowest and 1 represents the highest symptom severity for each OAB characteristic symptom, i.e. the centre of the plots represents the lowest symptom scores and the outermost layer of the plots represents the highest symptom scores. See Table 1 for the measures of central tendency (i.e. median) of each OAB characteristic symptom in each cluster.