Prevalence of vitamin A deficiency in a community is assessed as

NEET PG
#1

Prevalence of vitamin A deficiency in a community is assessed as

a. Night blindness - 10 %

b.Corneal ulcer - 0.01 %

c.Bitot sports 0.5 %

d.Decreased serum retinol level - 0.05%

ans:c.Bitot sports 0.5 %