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Br J Ophthalmol 83:688-691 doi:10.1136/bjo.83.6.688
  • Original Article
    • Clinical science

Ocular signs and symptoms and vitamin A status in patients with cystic fibrosis treated with daily vitamin A supplements

Table 2

Correlation values between dark adaptation, serum vitamin A, serum zinc, and retinol binding protein using Pearson’s correlation coefficient (r)

Pearson’s r Vitamin A Zinc RBP Dark adaptation
Vitamin A 1 −0.04 0.42 −0.16
Zinc −0.04 1 −0.25 −0.04
RBP 0.42 −0.25 1 −0.04
Dark adaptation −0.16 −0.04 −0.04 1

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