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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.