Table 3 Unadjusted and multi-adjusted hazard ratios (HRs) for mortality were assessed for patients on dialysis, grouped by physical and mental component summary (PCS-36, MCS-36, PCS-12, and MCS-12) quartile scores

Q⁴

1 (reference)

1 (reference)

1 (reference)

1 (reference)

Q³

3.516

(1.508, 8.196)

0.004

2.495

(1.041, 5.976)

0.040

1.720

(0.911, 3.249)

0.095

1.262

(0.616, 2.584)

0.525

Q²

2.599

(1.104, 6.119)

0.029

1.741

(0.721, 4.205)

0.218

1.634

(0.857, 3.115)

0.136

1.460

(0.735, 2.898)

0.280

Q¹

4.547

(2.016, 10.259)

<0.001

2.675

(1.126, 6.355)

0.026

1.365

(0.698, 2.667)

0.363

1.676

(0.845, 3.327)

0.714

PCS-12 quartile score

MCS-12 quartile score

Q⁴

1 (reference)

1 (reference)

1 (reference)

1 (reference)

Q³

2.248

(0.932, 5.423)

0.072

1.658

(0.630, 4.365)

0.306

1.262

(0.616, 2.584)

0.525

1.671

(0.859, 3.250)

0.130

Q²

3.618

(1.584, 8.263)

0.002

2.423

(0.964, 6.087)

0.060

1.460

(0.735, 2.898)

0.280

1.746

(0.907, 3.61)

0.095

Q¹

4.056

(1.789, 9.194)

0.001

2.512

(1.009, 6.254)

0.048

1.676

(0.845, 3.327)

0.140

1.901

(0.978, 3.368)

0.058