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 |  |  |