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Table 4 Response feature analysis: Utility scoresa (95% confidence interval) summarized into area under the curve

From: Health-related quality of life in persons with West Nile virus infection: a longitudinal cohort study

 

Area under the curveb

 

Six months onward

One year onward

Total cohort

0.78

(0.76, 0.81)

n = 108

0.81

(0.77, 0.84)

n = 59

Neuroinvasive

0.75

(0.71, 0.79)

n = 45

0.80

(0.75, 0.85)

n = 30

Nonneuroinvasive

0.80

(0.77, 0.83)

n = 56

0.82

(0.76, 0.86)

n = 29

  1. aUtility scores range on a scale from 0 (equivalent to being dead) to 1 (equivalent to perfect health). Larger values indicate better health-related quality of life. Scores are derived from the Medical Outcomes Study Short-Form-6D health state classification
  2. Note: One patient missing utility scores at all visits
  3. bArea under the curve is the integral of the utility-time curve. Areas are time-weighted (Total area after one year ÷ follow-up time)