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Table 4 Parameter estimates for cost of treatment model

From: Economic evaluation of the benefits of reducing acute cardiorespiratory morbidity associated with air pollution

Variable Name Variable Description Parameter Estimate ($) Standard Error ($)
VCOT = α + βASAS + βCHFCHF + βDD + βCCCC + βNCCNCC + βAS*DAS*D + βRI*DRI*D + βMIA*DMIA*D + βRI*CCRI*CC + βDYS*CCDYS*CC
Intercept Intercept term 348.58 90.71
AS Dummy variable for diagnosis of asthma (0,1) 440.33 125.97
CHF Dummy variable for diagnosis of congestive heart failure (0,1) 1680.09 406.92
D Total duration of disease episode (days) 31.70 7.85
CC Dummy variable for admission to hospital in critical care unit (0,1) 4530.36 176.20
NCC Dummy variable for admission to hospital in non-critical care unit (0,1) 1977.94 163.67
AS*D Interaction term (see variable definitions above) -27.71 9.17
RI*D Interaction term where RI is a dummy variable for diagnosis of respiratory infection (0,1) -29.02 8.07
MIA*D Interaction term where MIA is a dummy variable for diagnosis of myocardial infarction/angina (0,1) -30.54 14.50
RI*CC Interaction term (see variable definitions above) -1544.58 538.12
DYS*CC Interaction term where DYS is a dummy variable for diagnosis of dysrhythmia (0,1) -2402.73 906.97
AS*NCC Interaction term (see variable definitions above) -431.01 272.89
MIA*NCC Interaction term (see variable definitions above) 1180.79 301.74
CHF*NCC Interaction term (see variable definitions above) -2158.82 539.88