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Table 1 Formulas of the stock-flow model for the distribution of hospital beds

From: Development of a model for predicting hospital beds shortage and optimal policies using system dynamics approach

1

Number of bed: 3560

2

Growth proportion: 0/014

3

Population: 1,557,600

4

Growth rate: Growth proportion * Population

5

Total patient: Flow of travelers + Population * Patient to population ratio

6

Patient to population ratio: 0/129

7

Total bed day required: Total patient * Length of stay

8

Bed occupancy day:IF THEN ELSE (Total bed day required ≤ Total bed day * Optimal ratio bed occupancy rate, Total bed day required, Total bed day * Optimal ratio bed occupancy rate)

9

Bed occupancy rate: Bed occupancy day / Total bed day

10

Total bed day: Number of bed * 365

11

Shortage bed day: MAX(0, Total bed day required-Optimal ratio bed occupancy rate * Total bed day)

12

Capacity of home care services: 76,650

13

Specialist to bed ratio: Number of specialist physicians / Number of bed

14

Number of specialist physicians: 690

15

Flow of travelers: Number of specialist physicians * Travelers to specialists’ ratio

16

Rate effect 1: F 1 (Bed occupancy rate)

17

Rate effect 2: F 2 (Specialist to bed ratio)

18

Rate effect 3: F 3 (Bed to patient ratio)

19

Rate effect 4: F 4 (Home care day to total bed day ratio)