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Table 2 Intraoperative variables and postoperative outcomes

From: Relationship between preoperative neutrophil to high-density lipoprotein ratio and postoperative systemic inflammatory response syndrome in elderly patients: a retrospective cohort study

Characteristics

All(N = 5696)

SIRS

P value

No(N = 4277)

Yes(N = 1419)

Intraoperative variables

    

Operation grade

   

< 0.001

   I/II

306 (5.37%)

259 (6.06%)

47 (3.31%)

 

   III

1712 (30.06%)

1440 (33.67%)

272 (19.17%)

 

   IV

3678 (64.57%)

2578 (60.27%)

1100 (77.52%)

 

Type of surgery

   

< 0.001

   Head and neck

456 (8.01%)

202 (4.72%)

254 (17.90%)

 

   Abdominal and pelvic

114 (2.00%)

81 (1.89%)

33 (2.33%)

 

   Liver

109 (1.91%)

90 (2.10%)

19 (1.34%)

 

   Cerebral

113 (1.98%)

105 (2.45%)

8 (0.56%)

 

   Urology

29 (0.51%)

7 (0.16%)

22 (1.55%)

 

   Skin, spine and joint

526 (9.23%)

342 (8.00%)

184 (12.97%)

 

   Cardiothoracic and vascular

4349 (76.35%)

3450 (80.66%)

899 (63.35%)

 

Operative time, min

158 [91, 226]

140 [83, 202]

188 [132, 296]

< 0.001

Total fluid loss, ml

450 [200, 850]

400 [150, 750]

700 [350, 1200]

< 0.001

Fluid administration, ml

1700 [1100,2350]

1600 [1100,2200]

2200 [1600,3200]

< 0.001

Blood loss, mL

50 [20, 138]

50.0 [10, 100]

100 [50, 200]

< 0.001

Intensive care unit admission

   

< 0.001

   No

5177 (90.89%)

4164 (97.36%)

1013 (71.39%)

 

   Yes

519 (9.11%)

113 (2.64%)

406 (28.61%)

 

Postoperative outcomes

    

Postoperative hospitalization, days

8 [5, 11]

7 [4, 10]

11 [8, 18]

< 0.001

Direct medical cost, dollars

8040 [34430, 85989]

7086 [3878, 10108]

12,208 [8258, 18402]

< 0.001

Hospital mortality.

   

< 0.001

   No

5645 (99.10%)

4266 (99.74%)

1379 (97.18%)

 

   Yes

51 (0.90%)

11 (0.26%)

40 (2.82%)