Table 2

Zone-wise comparison of incidence of retinopathy of prematurity in urban and semiurban cohorts

IncidenceUrbanSemiurbanTotal
Zone I
 Col%7.515.811.5
 Count369
Zone II
 Col%57.552.655.1
 Count232043
Zone III
 Col%35.031.633.3
 Count141226
Total
 Col%100.0100.0100.0
 Count403878
  • Col%, column percentage; Count, denotes the number of babies in the cohort.