In a life table, the column 'Tx' represents:
- A The number of persons surviving to exact age x
- B The probability of dying between age x and x+1
- C The total number of person-years lived after exact age x ✓
- D The life expectancy at age x
Correct answer: C. The total number of person-years lived after exact age x
Explanation
In a life table, Tx represents the total number of person-years lived by the cohort after exact age x. It is calculated by summing the Lx values (person-years lived between ages) from age x to the end of the table. Lx represents person-years lived between age x and x+1, lx represents survivors to exact age x, and ex represents life expectancy at age x.
Reference: Park's Textbook of Preventive and Social Medicine, 26th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.