Skip to main content

Table 4 Comparison between patients with decreased mental component summary and patients with unchanged or increased mental component summary at day 30 after surgery (univariate analysis)

From: Preoperative and early postoperative quality of life after major surgery - a prospective observational study

Mental component summary/increased

 

Decreased n=20

Unchanged n=65

p Value

HRQoL

    

Preoperative physical component summary (MCS)

mean ± SD

51.2 ± 8.8

39.6 ± 12.8

< 0.001**

Postoperative physical component summary (MCS)

mean ± SD

34.6 ± 9.7

45.8 ± 12

< 0.001**

Preoperative mental component summary (PCS)

mean ± SD

39.2 ± 10

38.3 ± 10.9

0.731

Postoperative mental component summary (PCS)

mean ± SD

36.8 ± 6.1

34.5 ± 8.3

0.184

Patient data

    

Female

n (%)

11 (55)

33 (51)

0.802

Age

mean ± SD

72.1 ± 10.7

64.9 ± 11.4

0.014

Weight

mean ± SD

73 ± 10.8

73.6 ± 16.4

0.950

Preoperative assessments

    

Functional impairment

    

Independency of health care - independent

n (%)

17 (85.0)

57 (87.7)

0.715

Karnofsky score

median (IQR)

90 (90-90)

90 (80-90)

0.882

Exercise capacity

    

Metabolic equivalent of task (MET) >7

n (%)

2 (10.0)

14 (21.5)

0.338

Metabolic equivalent of task (MET) 4-7

n (%)

13 (65.0)

38 (58.5)

 

Metabolic equivalent of task (MET) <4

n (%)

5 (25.0)

13 (20.0)

 

Severity of comorbidity

    

Charlson comorbidity index (adjusted for age)

median (IQR)

4.5 (1-5)

1 (0-4)

0.011

ASA

median (IQR)

3 (2-3)

2 (2-2)

<0 .001**

Physiological part of POSSUM

median (IQR)

23 (16-29)

17 (14-21)

0.005

Surgery

    

Primary hip replacement

n (%)

8 (40.0)

34 (52.3)

0.039

Cardiac valve surgery

n (%)

7(35)

8 (12.3)

 

Gastric, esophageal or pancreatic surgery

n (%)

0

6 (9.2)

 

Colorectal surgery

n (%)

5 (25.0)

12 (18.5)

 

Femoropopliteal, femorotibial bypass

n (%)

0

5 (7.7)

 

Severity of surgery

    

Operative part of POSSUM

median (IQR)

10 (9-13)

10 (9-12)

0.427

Major

n (%)

13 (65)

51 (78.5)

0.245

Major +

n (%)

7 (35)

14 (21.5)

 

Anesthesia

    

General anesthesia

n (%)

18 (90.0)

60 (92.3)

0.622

Epidural/Spinal anesthesia

n (%)

7 (35.0)

16 (24.6)

 

Combined anesthesia

n (%)

5 (25.0)

11 (16.9)

 

Timing

    

Time from admission to surgery (h)

mean ± SD

73.8 (94.9)

68.2 ± 212.5

0.287

Time from admission to surgery; >24h

n (%)

7 (35)

12 (18.5)

0.251

Surgery duration (h)

mean ± SD

2.3 ± 0.5

2.7 ± 1.5

0.709

Anesthesia duration (h)

mean ± SD

3.9 ± 1.0

4.0 ± 1.7

0.452

Intraoperative complications

n (%)

13 (65)

38 (58.5)

0.795

Postoperative complications (Clavien ≥ 2)

    

Day 2*

n (%) [n]

10 (50) [20]

23 (35.9) [64]

0.301

Day 7*

n (%) [n]

8 (44) [20]

25 (47) [53]

0.610

Postoperative comfort

    

Pain at the surgical site - Numerical rating scale (NRS)

    

Day 1*

median (IQR) [n]

5 (5-7) [15]

5 (3-7) [57]

0.142

Day 6*

median (IQR) [n]

2 (1-3) [16]

4 (2-5) [52]

0.032

Pain, other - Numerical rating scale (NRS)

    

Day 1*

median (IQR) [n]

0 (0-5) [15]

0 (0-5) [57]

0.983

Day 6*

median (IQR) [n]

0.5 (0-3) [16]

0 (0-4) [52]

0.403

Comfort Estimation - Numerical rating scale (NRS)

    

Day 1*

median (IQR) [n]

5.5 (4.6-8) [14]

7 (5-8) [57]

0.318

Day 6*

median (IQR) [n]

7 (5-8) [15]

7.5 (6-8) [52]

0.289

Clinical itinerary

    

Simple

n (%)

16 (80)

58 (89.2)

0.278

Complex

n (%)

4 (20)

7 (10.8)

 

Hospital stay - days

median (IQR)

13.5 (10-19)

12 (9-15)

0.727

  1. *Data not available for all patients.
  2. **significant result : p value < 0.0016 (Bonferroni p value threshold).