Table 2. Clinical baseline and follow-up comparison of somatic complaints and quality-of-life scores, using paired samples t-tests.
n MeanSDDifference (95% CI)
P-value
PHQ-15 total symptom score
Baseline5117.85.7
Follow-up5114.26.83.79 (2.28 to 5.29)<0.01
SF-36 physical health component
Baseline4325.523.3
Follow-up4333.535.9–8.0 (–16.63 to 0.64)0.69
SF-36 mental health component
Baseline4235.825.5
Follow-up4245.629.5–9.8 (–18.44 to –1.18)<0.05
EQ-5D health score
Baseline4839.624.6
Follow-up4847.425.8–7.8 (–16.11 to 0.38)0.61
  • PHQ-15 = 15-item Patient Health Questionnaire. SD = standard deviation. SF=36 = 36-item Short Form Survey.