All are true of standardised moality ratio except ?
Ans. is 'a' i.e., Expressed as rate per year o Standardization is most commonly used for age. Standardization can be used not only for age, but also sex, race, parity, etc. SMR is the ratio of observed death to expected death and it is usually expressed as a percentage. o SMR is commonly used in occupational studies for comparison of morality in an industry and general population. o SMR can be used for occurrence of disease (rather than death).
Expressed as rate per year
Can be adjusted for age
Can be used for events other than death
Ratio of observed deaths to expected deaths