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Table 1 Comparison of different characteristics with respect to vitamin A status of children

From: The survey of serum retinol of the children aged 0~4 years in Zhejiang Province, China

Characteristics Mean serum retinol Level (μmol/L) t-value P- value
Gender Male(n = 188) 1.66 ± 0.45 0.318 0.751
  Female(n = 169) 1.65 ± 0.49   
Residential regions Urban(n = 189) 1.66 ± 0.49 0.078 0.938
  Rural(n = 168) 1.63 ± 0.43