Table 2 Fixed-effect panel data regression model for the advanced practice nursing workforces (log) in cancer care

Number of hospital nurses in the previous year (log)

6.998

6.585

7.411

0.632

0.002

0.23

1.034

–

–

–

–

–

–

–

–

Number of hospital doctors in the previous year (log)

14.611

< 0.001

13.975

15.246

–

–

–

–

− 1.893

< 0.001

− 2.695

− 1.091

–

–

–

–

Number of hospitals in the previous year (log)

–

–

–

–

–

–

–

–

− 0.854

0.098

− 1.865

0.158

Nurses’ wages in the previous year (log)

3.087

< 0.001

1.699

4.476

− 0.428

0.128

− 0.979

0.123

− 0.466

0.094

− 1.012

0.08

− 0.913

0.002

− 1.477

− 0.350

Number of designated cancer care hospitals in the previous year

 1st quartile

Reference

Reference

Reference

Reference

 2nd quartile

1.671

< 0.001

1.505

1.836

0.306

< 0.001

0.208

0.404

0.282

0

0.184

0.381

0.369

< 0.001

0.259

0.478

 3rd quartile

2.286

< 0.001

2.112

2.461

0.381

< 0.001

0.265

0.496

0.341

0

0.226

0.456

0.659

< 0.001

0.526

0.793

 4th quartile

2.853

< 0.001

2.654

3.052

0.429

< 0.001

0.286

0.573

0.445

0

0.303

0.587

0.638

< 0.001

0.486

0.789

Year

0.214

< 0.001

0.209

0.22

0.358

< 0.001

0.326

0.39

0.398

0

0.366

0.429

0.333

< 0.001

0.303

0.363

Population in the previous year

 1st quartile

Reference

Reference

Reference

Reference

 2nd quartile

− 2.142

< 0.001

− 2.783

− 1.502

− 0.113

0.289

− 0.322

0.096

− 0.031

0.77

− 0.241

0.179

− 0.066

0.510

− 0.264

0.131

 3rd quartile

− 4.668

< 0.001

− 6.074

− 3.262

0.416

0.054

− 0.007

0.839

0.451

0.035

0.031

0.871

0.419

0.051

− 0.001

0.839

 4th quartile

− 5.99

< 0.001

− 7.980

− 4.000

0.147

0.668

− 0.525

0.819

0.234

0.491

− 0.433

0.902

0.581

0.059

− 0.022

1.183

Percentage of the population aged 65 + in the previous year

0.361

< 0.001

0.35

0.372

− 0.27

< 0.001

− 0.323

− 0.217

− 0.252

< 0.001

− 0.305

− 0.2

− 0.225

< 0.001

− 0.273

− 0.177

Average income per capita in the previous year (log)

4.691

< 0.001

3.116

6.267

− 1.91

< 0.001

− 2.503

− 1.318

− 2.456

< 0.001

− 2.998

− 1.915

− 2.730

< 0.001

− 3.263

− 2.196