Social & Preventive Medicine A study revealed that in study group, intake of carotene | ca colon but it is due to | fibre intake, This is due to A Sampling error B Eastogical factor C Misclassification bias D Confounding factor 💡 Explanation A study revealed that in study group, intake of carotene | ca colon but it is due to | fibre intake, This is due to ✓ Correct Answer: D. Confounding factor