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Table 1 Key economic model inputs and distributions

From: Would school closure for the 2009 H1N1 influenza epidemic have been worth the cost?: a computational simulation of Pennsylvania

Description (units)

Median

Source

Daily Wages*

 

[40]

   Working parents/caregivers

$161.69 ($41.88-$345.70)

 

   Teacher

$212.12 ($103.23- $352.62)

 

   Other educational professionals

$336.12 ($190.25- $515.81)

 

Durations

  

   Work hours per day

8

Assumption

   Absenteeism from influenza (days)*

3.2 (1.85- 4.75)

[41]

   Days of work missed per week of school closure

5

 

   Percent of infected individuals symptomatic

50%

 

Probabilities/Ratios*

 

[42]

   Student to teacher ratio

15 to 1

 

   Student to other education professional ratio

78 to 1

 

Demographic Inputs

 

[43, 44]

   Percentage of caretaker households affected by school closure

71.5%

 

   Median number of persons per household under 18

1.9

 

Case Fatality Percentage (95% CI)

 

[33]

   Age 0-4

0.004% (0.001%-0.011%)

 

   Age 5-17

0.002% (0.000%-0.004%)

 

   Age 18-65

0.010% (0.007%-0.016%)

 

   Age 66-78+

0.010% (0.003%-0.025%)

 

Outpatient Visit Probability (95% CI)

 

[45]

   Age 0-4

0.455 ± 0.098

 

   Age 5-17

0.318 ± 0.061

 

   Age 18-65

0.313 ± 0.014

 

   Age 66-78+

0.620 ± 0.027

 

Case Hospitalization Probability (95% CI)

 

[22]

   Age 0-4

0.0033 (0.0021-0.0063)

 

   Age 5-17

0.0011 (0.0008-0.0018)

 

   Age 18-49

0.0015 (0.0011-0.0025)

 

   Age 65+

0.0016 (0.0010-0.0030)

 

Outpatient Visit Costs (95% CI)

  

   Pediatric

$74.90

[46]

   Adult

$104.77 ($69.14-$104.77)

[47]

   Elderly

$155.92 ($118.39-$193.44)

[47]

Hospitalization Given Influenza (95% CI)

 

[48]

   Age 1-17

$5,028 ($4,592-$5,464)

 

   Age 18-49

$6,506 ($6,071-$6,941)

 

   Age 50-64

$7,580 ($6,865-$8,295)

 

   Age 66+

$8,004 ($7,460-$8,548)

 

Death Given Influenza (95% CI)

$7,129 ($5,347 - $9,296)

[49]

  1. *All variables are gamma distributions approximated from normal distributions.