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Table 3 Nutrition assessment of Vitamin D in three age groups

From: Nutrition assessment of vitamin A and vitamin D in northeast Chinese population based-on SPE/UPLC/PDA

Participants Severe deficiency Deficiency Insufficiency Sufficiency P-value
Elementary school students 26(8.5) 179(58.3) 84(27.4) 18(5.9) 0.000a
Middle school students 47(17.2) 168(61.3) 53(19.3) 6(2.2) 0.001b
Adults 76(12.7) 416(69.3) 94(15.7) 14(2.3) 0.000c
Total 150(12.7) 764(64.7) 229(19.4) 38(3.2) 0.110d
  1. Note: all data were shown in n (%); severe deficiency: < 10 ng/ml; deficiency: 10~ 20 ng/ml; insufficient: 20~ 30 ng/ml; sufficient: ≥ 30 ng/ml
  2. a results of Chi-Square tests for the comparison of elementary school students, middle school students, and adults (the cut-off value of P is 0.05)
  3. b results of Chi-Square tests for the comparison with elementary school students (the cut-off value of P with Bonferroni correction is 0.05/3)
  4. c results of Chi-Square tests for the comparison with elementary school students (the cut-off value of P with Bonferroni correction is 0.05/3)
  5. d results of Chi-Square tests for the comparison with middle school students (the cut-off value of P with Bonferroni correction is 0.05/3)