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. 2016 Mar 8;11(3):e0151006. doi: 10.1371/journal.pone.0151006

Table 1. General characteristics of the study population.

Cases (n = 18) Controls (n = 50) p value
Age (year; median [IQR]) 70 (67 to 72) 55 (47 to 62) <0.001
Gender (% female) 28 66 0.012
Pupil diameter (mm; median [IQR])* 4.3 (4.0 to 5.3) 5.0 (4.0 to 6.0) 0.16
Visual acuity (logMAR; median [IQR]) 0.00 (0.00 to 0.05 -0.08 (-0.08 to 0.00) <0.001

* = based on a subset of 14 cases and 17 controls with pupil-diameter data; IQR = interquartile range.