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Table 5 The relationship between independent quantitative and qualitative variables with the difference between global tariffs and cost bills as dependent variables using linear regression in outpatient surgeries

From: A comparison of global surgery tariffs and the actual cost of bills at Hazrate Rasoole Akram educational and medical center

Variable

Coefficient

T

P > t

Operating room costs

3.34986

9.54

0.000

Surgeon’s fee

.0636388

1.43

0.155

Anesthesia fee

.4641438

6.45

0.000

Costs of other services

.3108476

15.26

0.000

Basic insurance organization

 Public Health Insurance

_162436.1

−1.26

0.207

 Relief Committee, Rural Health   Services and f oreigners

113,724.6

0.85

0.397

*Armed Forces

165,744.2

0.56

0.578

Treatment Services for employees and other groups

_58748.57

−0.33

0.740

Grouping the operation type

 Ophthalmology

_302557

−0.70

0.483

 ENT

_216804

−0.43

0.670

 Orthopedic

_642940.2

−1.00

0.316