Q:

The smoking history of pregnant women is taken in the antenatal period and correlated with the birth weight at the time of delivery. To find an association between them would be an example of:

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The smoking history of pregnant women is taken in the antenatal period and correlated with the birth weight at the time of delivery. To find an association between them would be an example of: 


  1. Clinical trial
  2. Nested cohort study
  3. Retrospective study
  4. Prospective study
  5. Cross sectional study

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d) Prospective study

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