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Table 4 Results of multivariable regression models for PR layer thickness

From: Neurodegeneration in systemic lupus erythematosus: layer by layer retinal study using optical coherence tomography

Model*Coefficient estimate95% confidence intervalp-value
Dependent variable: PR layer thickness at S3 sector
 Group I− 1.60− 3.31 to 0.110.066
 Group II− 1.51− 3.18 to 0.160.076
 Group III− 0.53− 1.84 to 0.780.426
Dependent variable: PR layer thickness at T3 sector
 Group I− 1.57− 3.36 to 0.220.084
 Group II− 1.08− 2.83 to 0.660.222
 Group III− 0.86− 2.23 to 0.510.217
Dependent variable: PR layer thickness at I3 sector
 Group I− 1.44− 2.77 to − 0.110.035
 Group II− 0.79− 2.10 to 0.510.231
 Group III− 0.70− 1.72 to 0.330.180
Dependent variable: PR layer thickness at S6 sector
 Group I− 1.74− 3.05 to − 0.430.010
 Group II− 1.51− 2.79 to − 0.220.022
 Group III− 1.20− 2.21 to − 0.190.020
Dependent variable: PR layer thickness at T6 sector
 Group I− 1.90− 3.11 to − 0.680.003
 Group II− 1.52− 2.71 to − 0.330.013
 Group III− 0.95− 1.88 to − 0.020.046
Dependent variable: PR layer thickness at I6 sector
 Group I− 1.24− 2.32 to − 0.150.026
 Group II− 1.18− 2.24 to − 0.120.029
 Group III− 1.04− 1.88 to − 0.210.014
Dependent variable: PR layer thickness at N6 sector
 Group I− 1.71− 2.93 to − 0.490.007
 Group II− 1.40− 2.60 to − 0.210.022
 Group III− 1.18− 2.11 to − 0.240.014
  1. *Reference category: healthy control group. p-values were obtained by linear regression models
  2. PR photoreceptor, Group I up to 5 years of disease duration, Group II 5–10 years, Group III more than 10 years