Table 2 Multivariate association between factors in the CD34+, CD 44+, CD 45+, CD 146+, CD29+, and Stro-1+ (*p < 0.05)

Interval from injury to surgery^b, < 90 days

0.025*

6.043

1.259–28.995

0.011*

8.440

1.615–44.111

0.015*

16.144

1.701–153.212

0.015*

9.246

1.541–55.461

0.369

1.982

0.446–8.819

0.059

4.559

0.944–22.020

10 ≤ age <20 year-old^c

0.957

1.056

0.144–7.755

0.996

0.994

0.124–7.985

0.773

1.370

0.161–11.643

0.416

0.438

0.060–3.198

0.960

1.048

0.167–6.572

0.112

6.244

0.679–40.503

20 ≤ age <30 year-old^c

0.027*

2.020

1.413–26.512

0.795

1.370

0.127–14.775

0.593

1.954

0.189–20.215

0.178

0.176

0.016–1.888

0.593

0.569

0.071–4.575

0.577

1.919

0.194–18.972

Sex^a Female

0.683

0.692

0.118–4.057

0.593

0.604

0.097–3.780

0.092

7.535

0.717–79.179

0.139

4.148

0.629–27.374

0.218

0.368

0.075–1.809

0.843

1.194

0.207–6.897

Meniscal injury^d

0.626

0.716

0.187–2.744

0.409

0.563

0.143–2.206

0.069

0.269

0.066–1.106

0.409

0.563

0.143–2.206

0.616

0.711

0.188–2.691

0.406

0.566

0.148–2.168

Chondral injury^d

0.433

2.714

0.223–32.992

0.327

3.500

0.286–42.769

0.761

0.679

0.056–8.248

0.327

3.500

0.286–42.769

0.554

2.125

0.175–25.775

0.688

0.600

0.049–7.283

Combined meniscal or chondral injuries^d

0.549

0.667

0.177–2.513

0.593

0.692

0.180–2.668

0.117

0.333

0.084–1.318

0.593

0.692

0.180–2.668

0.503

0.636

0.169–2.391

0.549

0.667

0.177–2.513