A firm has 62 employees. During the year, there are seven first-aid cases, three medicaltreatment injuries, an accident in which an injured employee was required to work 1 week in restricted work activity, a work-related illness in which the employee lost 1 week of work, a work-related illness in which the employee lost 6 weeks of work, and a fatality resulting from an electrocution. Calculate the total incidence rate, the number-of-lostworkdays rate, and the LWDI.

The answers to the question are

11.2967.746.45

Explanation:

The number of employees in the firm = 62

Number of first-aid cases = 7

Number of medical treatment injuries = 3

Injury resulting restricted work activity = 1

Illness resulting in one week loss work day = 1

Illness resulting in loss of 6 weeks of work =1

Incident resulting in fatality = 1

Total incidence rate

Total hours worked = 40×62×50  = 124000 Hrs

Where 200,000 is the number of hours worked by Full time employees numbering 100 that  work for 40 Hours a week for 50 weeks in a year

Number of recordable incident =  Those incident that results in lost work days, death, restricted ability to work, or transfer to another task or more severe injury treatment beyond first aid

Therefore number recordabe incident = 7

Recordable Incident Rate is calculated by

IR = (Number of recordable incident Cases X 200,000)÷(Number of Employee labor hours worked)

= (7×200000)/124000= 11.29

The number-of-lostworkdays rate

The Lost Workday Rate is given by

Lost Workday Rate = (Total number of days lost to injury or illness)÷( Cumulative number of hours employees worked) × 200000

Total number of days lost to injury or illness = 42 days

Lost Workday Rate = (42/124000) × 200000 = 67.74

LWDI. Lost Work Day Injury

LWDI = (Number of incident resulting in lost workdays and restricted activity) ×200000 /(Total number of hours worked by all employees in one year)

LWDI = LWD×200000/ EH = 4×200000/124000 = 6.45

LWDI  = 6.45

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