| Webster's Online Dictionary |
| Expressions | Domain | Definition | |
| Incidence or incidence rate | Health | The number of persons becoming ill in a defined population within a period of time. (references) | |
| Incidence rate | Environment | The ratio of new cases within a population to the total population at risk given a specified period of time. (references) | |
| Incidence rate | Mining | A. The rate of occurrence of accidents as determined by multiplying the actual number of injuries in any given period by 200,000 and dividing the product by the number of man-hours exposure. Syn: frequency rat b. A statistic used by the mining industries to measure safety performance and compare the performance of different groups or employers. The formula for determining the rate is: the number of injuries or illnesses times 200,000 h divided by employee hours worked. The 200,000 hours represents 100 employees working 40 h/wk and 50 wk/yr. This number keeps the value that results from the formula small. The number of employee hours comes from company records. They represent hours worked; not vacation, sick leave, or holiday time. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
