Table 3 Factors associated with working out-of-hours compared to not. Multiple regression analysis. N = 1774

 Male (reference)

1.00

 Female

0.53

0.423

0.674

< 0.001

 < 35 (reference)

1.00

 35–44

1.21

0.839

1.747

0.307

 45–54

0.80

0.477

1.357

0.414

 > 54

0.18

0.096

0.340

< 0.001

 Yes (reference)

1.00

 No

1.07

0.777

1.484

0.665

Experience, number of years as RGP^a

0.97

0.931

1.001

0.057

Number of days in clinical practice per week^b

1.00

0.919

1.095

0.945

 < 600 (reference)

1.00

 601–900

1.60

0.850

3.011

0.145

 901–1200

1.68

0.897

3.156

0.105

 1201–1500

1.54

0.794

3.004

0.200

 1501–1800

0.99

0.438

2.258

0.989

 > 1800

1.65

0.526

5.078

0.395

 < 3000 (reference)

1.00

 3001–5000

1.46

0.609

3.502

0.396

 5001–10,000

0.97

0.449

2.079

0.930

 10,001–25,000

1.25

0.575

2.696

0.578

 25,001–50,000

0.69

0.308

1.550

0.370

 50,001–100,000

0.72

0.312

1.643

0.431

 > 100,000

0.41

0.177

0.932

0.033

 Self-employed (reference)

1.00

 Self-employed with bonus agreement

1.25

0.818

1.898

0.305

 Salaried

1.57

0.735

3.340

0.245

 Salaried and bonus agreement

4.06

1.320

12.461

0.014

 Less than 30 min (reference)

1.00

 30 min – 1 h

1.58

1.161

2.151

0.004

 1–2 h

5.01

2.881

8.714

< 0.001

 More than 2 h

3.09

1.317

7.237

0.010