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. 2021 Apr 27;30(8):711–717. doi: 10.1097/IJG.0000000000001858

TABLE 4.

Multiple Regression Analysis to Determine Most Relevant SARS-CoV-2 Disease Parameters Influence on Peripapillary Vessel Density and Peripapillary Flux Index at 3 Months

RM1 RM2 RM3
β slope 95% CI P β slope 95% CI P β slope 95% CI P
Global VD (%) −0.306 (Hb) −0.493 to −0.119 0.002 −0.355 (Hb) −0.534 to −0.177 <0.0001 −1.397 (DM) −2.176 to −0.618 0.001
−0.039 (Age) −0.065 to −0.012 0.004 −0.323 (Hb) −0.499 to −0.146 <0.0001
Global FI (ratio) 5.485×10−5 (platelets) −2×10−6 to 1.12×10−4 0.060 −0.001 (Age) −0.002 to −4.87×10−4 <0.0001 −0.025 (DM) −0.042 to −0.008 0.004
−0.011 (AHT) −0.022 to −0.001 0.039

Variables included in regression model 1 (RM1): hemoglobin+ferritin+fibrinogen+APTT+INR+platelets+D-dimer+lymphocytes+disease severity.

Variables included in regression model 2 (RM2): hemoglobin+age+sex.

Variables included in regression model 3 (RM3): hemoglobin+AHT+DM+dyslipidemia.

The variable included in β slope is the resulting variable in the backward steps model.

AHT indicates arterial hypertension; APTT, activated partial thromboplastin time; CI, confidence interval; DM, diabetes mellitus; FI, flux index; Hb, hemoglobin; INR, international normalized ratio; RM, regression model; VD, vessel density.