safety IlI. Problems 1. For the year a firm with 30 employees has two injuries,

Question

safety

IlI. Problems 1. For the year a firm with 30 employees has two injuries, one of which involved lost workdays, and four illnesses, all of which involved lost workdays. Calculate the LWDI. 2. A 65-employee firm has the following injury and illness record for the year Case 1 - Work-related injury; no workdays lost Case 2 -Work-related illness; 5 days away from work Case 3 -Work-related injury; one workday away from work; nine more days in restricted work activity Case 4 - Injury; able to stay at work, but for two weeks employee Case 5 Ilness; not work-related a. Calculate the LWDI. b. Calculate the total injury/illness incidence rate. c. Calculate the number-of-lost-workdays rate. was unable to do regular job and was assigned to another one.

Explanation / Answer

1. LWDI - Lost work day incident -

We assume employees work for 40 Hours per week, for 50 weeks per year as per OSHA guidelines I.e. 2000 Work hours per employee per year.

For 30 employees - 30 x 2000= 60,000 work hours per year

Total lost workdays - 1(Due to injury) + 4(Due to Illness) = 5

LWDI Rate =(5 x 200,000)/60,000= 16.67

2. Total work hours for 65 employees - 65 x 2000 = 130,000 work hours per employee per year

Case 1-

a) LWDI - 0 (No workday lost)

b) IR - Incidence Rate - (1 x 200,000)/130,000=1.53

Case 2-

a) LWDI - (5 x 200,000)/130,000 = 7.69

b) IR - Incidence Rate - (1 x 200,000)/130,000 = 1.53

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