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. Author manuscript; available in PMC: 2012 Nov 1.
Published in final edited form as: Optom Vis Sci. 2011 Nov;88(11):1283–1287. doi: 10.1097/OPX.0b013e31822a61e7

Table 1.

Characteristics of patients who abandoned at least one prescribed device and those who did not abandon any devices. P values for t-tests or Fisher’s exact tests are of differences in characteristics between groups are listed.

Abandoned at least one device (n=19) Did not abandon a device (n=69) P value
BCVA (logMAR) 0.60 (0.29) 0.63 (0.30) 0.734

Months Since Prescription 11.7 (3.9) 11.0 (3.2) 0.393

Age 79 (13) 79 (17) 0.545

Gender
 male 8 24 0.597
 female 11 45

Ocular Disease
 AMD 11 40 0.537
 DM retinopathy 1 5
 glaucoma 4 8
 macular dystrophy 1 2
 albinism 0 1
 retinitis pigmentosa 1 1
 other 1 11