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Table 3 Binary and multivariable logistic regression presenting the odds of perceiving ‘medium/large competitive pressure’ from specialists

From: What non-clinical factors influence the general dentist–specialist relationship in Canada?

 

Binary

Multivariable

Odds ratio* (95% CI)

p

Odds ratio** (95% CI)

p

Socio-demographic factors

    

Age

    

 40 years and younger (reference)

1.00

   

 41–50

1.07 (0.65, 1.75)

0.801

  

 51–60

0.79 (0.47, 1.33)

0.378

  

 > 61

0.65 (0.36, 1.19)

0.163

  

Gender

    

 Male (reference)

1.00

   

 Female

0.67 (0.45, 1.01)

0.053

  

Gross annual income

    

 < $149,000 (reference)

1.00

 

1.00

 

 $150,000–$249,000

1.30 (0.77, 2.18)

0.331

1.40 (0.81, 2.41)

0.224

 > $250,000

1.76 (1.08, 2.86)

0.024

1.68 (0.98, 2.88)

0.060

Relationship status

    

 Single/non-married (reference)

1.00

   

 Married

0.86 (0.51, 1.45)

0.570

  

 Divorced/separated

1.09 (0.45, 2.66)

0.844

  

Primary income-earner in the household

    

 Yes (reference)

1.00

   

 No

0.61 (0.32, 1.19)

0.147

  

 My partner and I contribute equally

0.60 (0.35, 1.03)

0.064

  

Number of dependents

    

 0 (reference)

1.00

 

1.00

 

 1

0.93 (0.48, 1.80)

0.819

0.84 (0.43, 1.66)

0.620

 2–4

1.69 (1.02, 2.79)

0.042

1.39 (0.80, 2.40)

0.240

 5 or more

3.21 (1.34, 7.69)

0.009

2.33 (0.91, 5.94)

0.077

Professional factors

    

Type of practitioner

    

 General dentist (reference)

1.00

 

1.00

 

 General dentist with GPR/AEGD

2.04 (1.23, 3.38)

0.006

2.00 (1.17, 3.41)

0.011

Place of initial training

    

 Canadian dental faculty (reference)

1.00

   

 American dental faculty

0.69 (0.29, 1.65)

0.406

  

 International dental faculty

1.15 (0.72, 1.84)

0.570

  

Years of practice in Canada

    

 < 14 years (reference)

1.00

 

1.00

 

 15–29

0.76 (0.49, 1.17)

0.209

0.63 (0.38, 1.04)

0.072

 > 30

0.59 (0.35, 0.97)

0.039

0.71 (0.38, 1.31)

0.274

Presence of student loans

    

 No, I do not have any student loans (reference)

1.00

   

 Yes

1.03 (0.70, 1.52)

0.891

  

Hours of CE in a year

    

 Less than 30 (reference)

1.00

   

 More than 30

0.71 (0.46, 1.09)

0.116

  

Involvement in a study club

    

 No (reference)

1.00

   

 Yes

0.89 (0.60, 1.31)

0.554

  

Perception of pressure from other general dentists

    

 No pressure/small amount (reference)

1.00

   

 Medium/large pressure

0.76 (0.52, 1.12)

0.170

  

Practice factors

    

How many practices do you work in?

    

 1 (reference)

1.00

   

 2 or more

1.52 (0.99, 2.33)

0.055

  

Perception about size of practice loans

    

 No outstanding practice loans (reference)

1.00

 

1.00

 

 Small

0.93 (0.48, 1.80)

0.832

0.67 (0.33, 1.36)

0.268

 Medium

1.45 (0.82, 2.57)

0.206

0.96 (0.50, 1.84)

0.902

 Large

2.53 (1.60, 4.00)

< 0.001

1.79 (0.99, 3.24)

0.054

Location of the primary practice

    

 Large population center (100,000 or greater) (reference)

1.00

 

1.00

 

 Medium population center (30,000–99,999)

1.10 (0.69, 1.77)

0.692

1.03 (0.63, 1.69)

0.912

 Small population center (1000–29,999)

0.44 (0.24, 0.80)

0.007

0.73 (0.36, 1.45)

0.366

Practice ownership

    

 No, I do not own a practice (reference)

1.00

 

1.00

 

 Yes

2.01 (1.29, 3.14)

0.002

1.73 (0.97, 3.08)

0.063

Presence of specialists in close proximity (< 5 km) to the practice

    

 No (reference)

1.00

 

1.00

 

 Yes

3.05 (1.51, 6.14)

0.002

2.52 (1.12, 5.69)

0.026

Presence of in-house/visiting specialist

    

 No (reference)

1.00

   

 Yes

1.11 (0.68, 1.81)

0.666

  
  1. *Model 1 entered all the variables independently
  2. **Model 2 entered significant variables from Model 1 (p < 0.05) as a block, adjusting for all variables simultaneously