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Table 2 Serum retinol levels and VAD in every age group

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

Age group (months) Number (n) Serum retinol(μmol/L) Clinical signs (%) VAD (%) Low Vitamin A status(%)
0–5 38 1. 51 ± 0. 68 0(0) 6(15. 8) 1(2. 6)
6–11 35 1. 56 ± 0. 51 0(0) 3(8. 6) 6(17. 1)
12–23 70 1. 67 ± 0. 47 0(0) 2(2. 9) 9(12. 9)
24–35 68 1. 63 ± 0. 42 0(0) 0(0) 3(4. 4)
36–47 72 1. 66 ± 0. 35 0(0) 0(0) 3(4. 2)
48–59 74 1. 68 ± 0. 45 0(0) 0(0) 4(5. 4)
t ot al 357 1. 65 ± 0. 47 0(0) 11(3. 08) 26(7. 28)