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Table 3 Distribution and workload of ED manpower in the hospital for HFEPs, TPs, MBG, and NMBG according to the event timeline

From: Lessons learned from reviewing a hospital’s disaster response to the hydrofluoric acid leak in Gumi city in 2012

Acute phase (16:00 pm September 27–00:00 am September 28, 8 h)

Time

Work hour

Work shift

Doctor (n)

TPs (n)

HFEPs (n)

MBG (n)

NMBG (n)

PPH of TPs

PPH of HFEPs

PPH of MBG

PPH of NMBG

 16:00 pm – 17:00 pm

1

Day

3

4

2

2

0

1.33

0.67

0.67

0

 17:00 pm – 00:00 am

7

Night

3

39

6

6

0

1.86

0.29

0.29

0

Time

Work hour

Work shift

Nurse (n)

TPs (n)

HFEPs (n)

MBG (n)

NMBG (n)

PPH of TPs

PPH of HFEPs

PPH of MBG

PPH of NMBG

 16:00 pm – 23:00 pm

7

Evening

4

76

19

7

19

1.29

0.68

0.25

0.68

 23:00 pm – 00:00 am

1

Night

3

7

0

1

0

2.33

0

0.33

0

Subacute phase (00:00 am September 28–00:00 am September 29, 24 h)

Time

Work hour

Work shift

Doctor (n)

TPs (n)

HFEPs (n)

MBG (n)

NMBG (n)

PPH of TPs

PPH of HFEPs

PPH of MBG

PPH of NMBG

 00:00 am – 08:00 am

8

Night

3

58

47

45

2

2.42

1.96

1.88

0.08

 08:00 am – 17:00 pm

9

Day

3

131

109

0

109

4.85

4.04

0

4.04

 17:00 pm – 00:00 am

7

Night

3

73

11

0

11

3.48

0.52

0

0.52

Time

Work hour

Work shift

Nurse (n)

TPs (n)

HFEPs (n)

MBG (n)

NMBG (n)

PPH of TPs

PPH of HFEPs

PPH of MBG

PPH of NMBG

 00:00 am – 07:00 am

7

Night

3

57

47

45

2

2.71

2.24

2.14

0.10

 07:00 am – 15:00 pm

8

Day

3

117

101

0

101

4.88

4.21

0

4.21

 15:00 pm – 23:00 pm

8

Evening

4

83

19

0

19

2.59

0.59

0

0.59

 23:00 pm – 00:00 am

1

Night

3

5

0

0

0

1.67

0

0

0

Chronic phase (00:00 am September 29–00:00 am October 21, 22 days)

Time

Work hour

Work shift

Doctor (n)

TPs (n)

HFEPs (n)

MBG (n)

NMBG (n)

PPH of TPs

PPH of HFEPs

PPH of MBG

PPH of NMBG

 22 days

NA

NA

NA

2243

24

2

22

NA

NA

NA

NA

  1. ED Emergency department, HF Hydrogen fluoride, HFEPs Hydrogen fluoride-exposed patients, TPs Total patients in emergency department, MBG Major burn group, NMBG Non-major burn group, NA Not available or not accountable, PPH Patient per hour (number of patients per group/work hour × number of doctors or nurses and considered the workload severity index, Acute phase First 8 h after onset of HF leak, Subacute phase 24 h after acute phase, Chronic phase 22-day period after acute and subacute phases, Work shift Work shifts for doctors were day (8 am – 17 pm, 9 h) and night (17 pm – 8 am, 15 h), and work shifts for nurses were day (7 am – 15 pm, 8 h), evening (15 pm – 23 pm, 8 h), and night (23 pm – 7 am, 8 h)