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

Table 4 Results of multivariable regression models for PR layer thickness

Model*	Coefficient estimate	95% confidence interval	p-value
Dependent variable: PR layer thickness at S3 sector
Group I	− 1.60	− 3.31 to 0.11	0.066
Group II	− 1.51	− 3.18 to 0.16	0.076
Group III	− 0.53	− 1.84 to 0.78	0.426
Dependent variable: PR layer thickness at T3 sector
Group I	− 1.57	− 3.36 to 0.22	0.084
Group II	− 1.08	− 2.83 to 0.66	0.222
Group III	− 0.86	− 2.23 to 0.51	0.217
Dependent variable: PR layer thickness at I3 sector
Group I	− 1.44	− 2.77 to − 0.11	0.035
Group II	− 0.79	− 2.10 to 0.51	0.231
Group III	− 0.70	− 1.72 to 0.33	0.180
Dependent variable: PR layer thickness at S6 sector
Group I	− 1.74	− 3.05 to − 0.43	0.010
Group II	− 1.51	− 2.79 to − 0.22	0.022
Group III	− 1.20	− 2.21 to − 0.19	0.020
Dependent variable: PR layer thickness at T6 sector
Group I	− 1.90	− 3.11 to − 0.68	0.003
Group II	− 1.52	− 2.71 to − 0.33	0.013
Group III	− 0.95	− 1.88 to − 0.02	0.046
Dependent variable: PR layer thickness at I6 sector
Group I	− 1.24	− 2.32 to − 0.15	0.026
Group II	− 1.18	− 2.24 to − 0.12	0.029
Group III	− 1.04	− 1.88 to − 0.21	0.014
Dependent variable: PR layer thickness at N6 sector
Group I	− 1.71	− 2.93 to − 0.49	0.007
Group II	− 1.40	− 2.60 to − 0.21	0.022
Group III	− 1.18	− 2.11 to − 0.24	0.014

*Reference category: healthy control group. p-values were obtained by linear regression models
PR photoreceptor, Group I up to 5 years of disease duration, Group II 5–10 years, Group III more than 10 years

ISSN: 2056-9920