Fig. 2.
Percentage of all (percentage of 54 included samples that reported barrier/facilitator), qualitative (percentage of 31 included qualitative samples that reported barrier/facilitator) and quantitative (percentage of 23 included quantitative samples where a ‘large’ (> 30) or ‘medium’ (10–30) percentage of participants endorsed the barrier/facilitator) studies reporting barriers and facilitators relating to young people’s individual factors