Table 3

Spearman’s rank correlation coefficients and significance levels between VA, IVF and responses to QOL questionnaires
IVF VAB
r P-value r P-value
EQ-5D −0.25 0.003 −0.19 0.03
SF-6D −0.29 0.001 −0.22 0.01
TTO −0.47 <0.001 −0.48 <0.001
VFQ-25 −0.67 <0.001 −0.71 <0.001

IVF = integrated visual field score.

VAB = binocular visual acuity.

EQ-5D = UVs derived using EuroQoL Index tool.

SF-6D = UVs derived from SF-36 using SF-6D algorithm [53].

TTO = time trade-off utility value.

Bozzani et al.

Bozzani et al. BMC Ophthalmology 2012 12:43   doi:10.1186/1471-2415-12-43

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