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Table 1 Elements used for calculation of predicted future cost of illness

From: Cost of illness of the Cervical Cancer of the uterus in Japan - a time trend and future projections

Model

Item

Elements used for calculation

Fixed or Varied

Fixed model

Number of deaths

Mortality rate

Fixed

The population estimates

Varied

Direct cost

The expenses of outpatient visit and hospitalization

Fixed (Calculated using the unit cost in 2011)

Medical fees per examination

Fixed

Total person-days of outpatient visit

Varied

Total person-days of hospitalizations

Varied

Morbidity cost

Average number of outpatients

Fixed

Average number of hospitalizations

Fixed

Average length of stay

Fixed

The population estimates

varied

Labor-value

Fixed

Mortality cost

Number of deaths

Varied

Life expectancy

Fixed

Labor-value

Fixed

Discount rate: 3%

Fixed

・Logarithm model

Number of deaths

Mortality rate

Varied (Calculated using the trend line formula)

・Linear model

The population estimates

Varied

・Mixed model

Direct cost

The expenses of outpatient visit and hospitalization

Fixed (Calculated using the unit cost in 2011)

Medical fees per examination

Varied

Total person-days of outpatient visit

Varied

Total person-days of hospitalization

Varied

Morbidity cost

Average number of outpatient visits

Varied (Calculated using the trend line formula)

(minimum value: the previous value before 0)

Average number of hospitalizations

Varied (Calculated using the trend line formula)

(minimum value: the previous value before 0)

Average length of stay

Varied (Calculated using the trend line formula)

(minimum value: 7.8 days)

The population estimates

Varied

Labor-value

Fixed

Mortality cost

Number of deaths

Varied

Life expectancy

Fixed

Labor-value

Fixed

Discount rate: 3%

Fixed

  1. Fixed: The value for 2011 was used. Varied: The values for 2014, 2017, and 2020 were calculated based on the trend line.
  2. Source of medical fees per examination: Patient Survey [14].
  3. Source of average length of stay: Patient Survey [14].