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. 2007 Sep 25;7:264. doi: 10.1186/1471-2458-7-264

Table 1.

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

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