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Table 6 CFA four-factor model—factor loadings (SEs) and fit indices for HPES-Impact using observational study data

From: Psychometric validation of the Hypoparathyroidism Patient Experience Scales (HPES)

Impact Domain/Item

CFA 4-Factor Model Standardized Estimates

Factor 1

Factor 2

Factor 3

Factor 4

Physical Functioning

 

r12 = 0.920

r13 = 0.749

r14 = 0.799

 1a. Moving your body

0.780* (0.029)

–

–

–

 1b. Walking

0.839* (0.023)

–

–

–

 1c. Being physically active during the day

0.873* (0.018)

–

–

–

 1d. Exercising or doing strenuous activities

0.844* (0.022)

–

–

–

 1e. Physically recovering after doing activities

0.877* (0.021)

–

–

–

Daily Life

  

R23 = 0.780

r24 = 0.881

 2a. Tasks around the home

–

0.895* (0.014)

–

–

 2b. Hobbies or leisure activities

–

0.820* (0.020)

–

–

 2c. Errands

–

0.823* (0.021)

–

–

 2d. Complex tasks

–

0.761* (0.027)

–

–

 2e. Work or school

–

0.785* (0.031)

–

–

 3a. Plan your day around your symptoms

–

0.823* (0.021)

–

–

 3b. Take breaks or pace yourself when doing activities

–

0.821* (0.019)

–

–

 3c. Stop what you were doing due to your symptoms

–

0.824* (0.021)

–

–

Psychological Well-Being

   

R34 = 0.794

 4a. Anxious

–

–

0.779* (0.031)

–

 4b. Frustrated

–

–

0.869* (0.021)

–

 4c. Low self-confidence

–

–

0.726* (0.030)

–

 4d. Depressed

–

–

0.769* (0.029)

–

 4e. Isolated

–

–

0.756* (0.030)

–

 4f. Irritable

–

–

0.796* (0.026)

–

 4g. Worried

–

–

0.811* (0.023)

–

 4h. Angry

–

–

0.767* (0.026)

–

Social Life and Relationships

    

 5a. Participating in social activities

–

–

–

0.914* (0.014)

 5b. The types of activities you do with other people

–

–

–

0.845* (0.019)

 5c. Your relationships with friends

–

–

–

0.797* (0.022)

 5d. Your relationships with family

–

–

–

0.777* (0.024)

 5e. Your relationship with spouse/partner

–

–

–

0.853* (0.027)

  1. *P < 0.05 for H0: loading = 0
  2. CFA = confirmatory factor analysis; CFI = comparative fit index; HPES = Hypoparathyroidism Patient Experience Scale; RMSEA = root mean square error of approximation; SE = standard error; SRMR = standardized root mean residual; TLI = Tucker-Lewis index
  3. Note: P value of Chi-square test < 0.0001, RMSEA = 0.078, CFI = 0.960, TLI = 0.956, SRMR = 0.048