Table 4 of Ayyagari, Mol Vis 2019; 25:438-445.


Table 4. Distribution of Serum Free Vitamin D levels in the three groups.

Study Group N Mean pg/ml SD pg/ml Minimum pg/ml Maximum pg/ml Median pg/m Lower Quartile pg/m Upper Quartile pg/m
Control 174 8.02 6.19 1.08 33.64 6.29 3.97 9.76
Early 170 7.56 5.74 0.77 33.22 5.99 4.17 9.14
Advanced 175 6.35 4.76 0.59 31.47 5.09 3.47 7.19