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. 2016 Mar 11;6(3):e010791. doi: 10.1136/bmjopen-2015-010791

Table 3.

Multivariate regression models of axial length affecting peripapillary perfusion in respondents

Retinal flow index
Retinal vessel density
Variable Model Standardised β (SE) Adjusted R2 p Value Standardised β (SE) Adjusted R2 p Value
Axial length 1* −0.376 (0.001) 0.130 0.001 −0.39 (0.47) 0.144 <0.001
Axial length 2 −0.366 (0.001) 0.116 0.001 −0.37 (0.47) 0.151 0.001
Axial length 3 −0.375 (0.001) 0.108 0.001 −0.37 (0.48) 0.14 0.001
Axial length 4 −0.235 (0.001) 0.205 0.048 −0.22 (0.51) 0.245 0.052

*Model 1 for crude; model 2, adjustment for age and gender; model 3, further adjustment for ocular perfusion pressure; model 4, further adjustment for retinal nerve fibre layer thickness, cup/disc area ratio and rim area.