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Table 6 Results of confirmatory factor analysis of the developed PHQ-8 and the SSS-8

From: Developing the Patient Health Questionnaire-8 for a greater impact on the quality of life of patients with functional dyspepsia compared to Somatic Symptom Scale-8

Scale

Model

χ2

df

RMR

RMSEA

GFI

AGFI

CFI

TLI

NFI

PHQ-8

3 factors

31.247

17

0.016

0.042

0.984

0.967

0.958

0.931

0.915

SSS-8

3 factors

17.251

17

0.010

0.007

0.991

0.981

0.998

0.997

0.927

  1. PHQ-8 Patient Health Questionnaire-8, SSS-8 Somatic Symptom Scale-8, RMR root mean square residual, RMSEA root mean square error of approximation, GFI goodness-of-fit index, AGFI adjusted goodness-of-fit index, CFI comparative fit index, TLI Tucker–Lewis index, NFI normed fit index
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BMC Gastroenterology

ISSN: 1471-230X

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