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Table 2 Changes in Perceived Medical School Stress (PMSS) and Symptom Check list (SCL-5) score over the period

From: Self-development groups reduce medical school stress: a controlled intervention study

  Self-development group (n = 47) Discussion group (n = 39) Control group (PMSS n = 93, SCL-5 n = 94)
  T1 T2 T1 T2 T1 T2
PMSS 21.72
(19.46, 23.99)
19.72*
(17.43, 22.02)
19.21
(17,12, 21.29)
18.03
(15.93, 20.12)
19.25
(17.90, 20.61)
19.94
(18.48, 21.39)
Change in PMSS score -2.00
(-1.18, -0.25)
-1.18
(-3.00, 0.65)
-0.68
(-0.28, 1.63)
SCL-5 0.79
(0.62, 0.96)
0.81
(0.61, 1.02)
0.76
(0.50, 1.03)
0.62
(0.40, 0.83)
0.74
(0.58, 0.89)
0.77
(0.64, 0.92)
Change in SCL-5 score 0.03
(-0.19, 0.24)
-0.15
(-0.36, 0.06)
0.04
(-0.07, 0.16)
  1. * Changes were significant in paired samples t-tests. P < 0.05. Mean sum scores and mean change scores for Perceived Medical School Stress (PMSS) n = 179, and mean item score and mean change scores for Symptom Check list (SCL-5), n = 180, for students responding at both T1 and T2. The 95% confidence interval for the mean and difference is given in parentheses.