Table 1 Ordinal logistic regression model (dependent variable cost-utility – four quartiles of distribution)

Continous (months)

Duration of the FP

0.007

(0.002)

0.02

**

1.01

-0.00

(0.00)

0.02

**

-0.002

(0.00)

0.62

-0.002

(0.00)

0.77

0.002

(0.001)

0.02

**

Continous (years)

Patient's age

-0.02

(0.03)

0.57

0.98

0.00

(0.01)

0.57

0.00

(0.01)

0.70

0.00

(0.01)

0.80

-0.004

(0.007)

0.57

Binary (0–1)

Absence of Bell’s phenomenon

3.756

(1.41)

0.01

***

42.7

-0.92

(0.35)

0.01

***

-0.018

(0.03)

0.62

0.015

(0.05)

0.77

0.923

(0.348)

0.01

***

Binary (0–1)

Absence of corneal sensation

0.861

(0.8)

0.28

2.37

-0.21

(0.20)

0.28

-0.004

(0.09)

0.64

0.003

(0.01)

0.78

0.211

(0.196)

0.28

Binary (0–1)

Presence of the previous eyelid surgery

0.260

(0.78)

0.74

1.3

-0.06

(0.19)

0.74

-0.001

(0.004)

0.78

0.001

(0.05)

0.83

0.064

(0.192)

0.74

Binary (0–1)

Etiology of the FP (CPAT)

2.726

(1.43)

0.06

*

15.3

-0.67

0.06

*

-0.013

0.62

0.011

0.77

0.670

0.06

*

Binary (0–1)

Patient's gender (men)

4.213

(3.72)

0.26

67.5

-1.03

(0.91)

0.26

-0.020

(0.04)

0.65

0.017

(0.06)

0.77

1.035

(0.917)

0.26

Continous (pcts.)

Sunnybrook Facial Grading System

-0.17

(0.6)

0.17

0.85

0.04

(0.01)

0.17

0.001

(0.001)

0.69

-0.001

(0.001)

0.77

-0.041

(0.015)

0.17

Threshold

(1- > 2)

-14.8

(20.6)

0.47

Threshold

(2- > 3)

-14.6

(20.6)

0.48

Threshold

(3- > 4)

-14.3

(20.6)

0.49

Model statistics

Log-Likelihood:

-41.23

AIC:

110.47

McFadden's R²:

0.20