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Table 3 RSV-iiiQ Score Descriptive Statistics, Reliability, and Construct Validity Correlations (Day 1, n = 111)

From: Psychometric evaluation of the respiratory syncytial virus infection, intensity and impact questionnaire (RSV-iiiQ) in adults

RSV-iiiQ Score

Mean (SD)

Test-retest ICC

Alpha

Day 1, Day 2

Construct Validity Correlations (Day 1)

Sheehan Disability Scale

EQ-5D-5L

PGIS

Work/

School

Family Life/

Home

Days Lost

Days Unpro-

ductive

Mobility

Usual Activities

Self-care

Pain/

Discomfort

Anxiety/

Depres-sion

VAS

 

Respiratory Symptoms

1.15 (0.7)

0.86

0.90, 0.90

0.65*

0.61*

0.34*

0.45*

0.41*

0.43*

0.37*

0.61*

0.26

−0.54*

0.78*

Systemic Symptoms

1.06 (0.7)

0.80

0.88, 0.87

0.61*

0.56*

0.36*

0.49*

0.43*

0.54*

0.51*

0.74*

0.32*

−0.56*

0.64*

Functional Impacts

0.99 (0.8)

0.80

0.94, 0.94

0.69*

0.67*

0.42*

0.48*

0.49*

0.61*

0.56*

0.61*

0.29

−0.57*

0.76*

Emotional Impacts

1.15 (0.9)

0.65

0.88, 0.91

0.66*

0.62*

0.36*

0.39*

0.38*

0.44*

0.40*

0.46*

0.45*

−0.51*

0.60*

  1. * P < 0.01 for H0: ρ = 0
  2. ICC = intraclass correlation coefficient; PGIS = Patient Global Impression of Severity; RSV-iiiQ = Respiratory Syncytial Virus Infection, Intensity and Impact Questionnaire; SD = standard deviation; VAS = visual analog scale
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