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. 2018 Jan 31;13(1):e0191831. doi: 10.1371/journal.pone.0191831

Fig 2. Illustration of the prevalence rates of all subscale values above or below reference sub scores in different stages of medical training.

Fig 2

The bars represent the prevalence rate of students and high school graduates in the respective sub-scales of the PSQ-20 above the respective reference values. Significant differences emerged for the sub scales “loss of joy” with (χ2 = 32.4; df = 5; p < .01**). Post hoc analyses yield that students in final year, students in 9th semester and 3rd semester students achieved the highest proportion below the reference values with prevalence rates between 18.2% and 23.2%. 6th semester students had lower rates as these groups with 15.4%, but higher prevalence rates than high-school graduates (7.8%) and freshman students with 10.1%. Significant differences also emerged for the sub scales “high demands” with (χ2 = 43.9; df = 5; p < .01**). Students in 3rd semester and 9th semester had highest proportion above the reference values with prevalence rates of 48.3% and 39.6%. Students in the 6th semester and students in final year had lower rates as these groups with 26.2% and 25.4%. High-school graduates and freshman students achieved rates of 17.6% and 17.4% for “highly demands”. For the sub scale “high tension”, it was also emerged significant differences with (χ2 = 67.8; df = 5; p < .01**). Students in 3rd semester achieved the highest proportion above the reference values with a prevalence rate of 30.8%. Students in the 9th semester, students in final year and students in 6th semester had significantly lower rates as 3rd semester with prevalence rates between 19.4% and 21.4%. On this sub scale high-school graduates and freshman students also achieved lowest prevalence rates above reference value with 8.4% and 12.1%. There was no significant difference for the subscale “high worries” with (χ2 = 11.4; df = 5; p > .05).