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Table 3 Baseline characteristics and pathological outcomes in elderly patients: PSM analysis

From: Short-term outcomes after minimally invasive versus open pancreaticoduodenectomy in elderly patients: a propensity score-matched analysis

Variables

Original cohort

P-value

Matched cohort

P-value

MIPD (N = 20)

OPD (N = 66)

MIPD (N = 17)

OPD(N = 34)

Age (years)

74.5 ± 6.77

72.48 ± 5.35

0.234

73.76 ± 5.68

73.70 ± 6.82

0.974

Male (Male)

14 (70.0%)

40 (60.6%)

0.313

13 (76.5%)

25 (73.5%)

0.553

Malignancy (n, %)

19 (95%)

59 (84.9%)

0.402

16 (94.1%)

32 (94.1%)

> 0.999

CCI (n, %)

  

0.211

  

0.558

 0

6 (30.0%)

28 (42.4%)

 

6 (35.3%)

12 (35.3%)

 

 1

6 (30.0%)

22 (33.3%)

 

6 (35.3%)

12 (35.3%)

 

 2

7 (35.0%)

12 (18.2%)

 

4 (23.5%)

8 (23.5%)

 

 3

0 (0%)

3 (4.5%)

 

0 (0%)

2 (5.9%)

 

 4

0 (0%)

1 (1.5%)

 

0 (0%)

0 (0%)

 

 5

1 (5.0%)

0 (0%)

 

1 (5.9%)

0 (0%)

 

ASA (n, %)

  

0.388

  

0.463

 I

0 (0%)

0 (0%)

 

0 (0%)

0 (0%)

 

 II

5 (25.0%)

21 (31.8%)

 

4 (23.5%)

10 (29.4%)

 

 III

15 (75.0%)

45 (68.2%)

 

13 (76.5%)

24 (70.6%)

 

Tumor type (n, %)

  

0.402

  

0.583

 Benign

1 (5.0%)

6 (9.1%)

 

1 (3.8%)

2 (5.9%)

 

 Ampullary cancer

9 (45.0%)

16 (24.2%)

 

7 (41.2%)

10 (29.4%)

 

 CBD cancer

4 (20.0%)

11 (16.7%)

 

3 (17.6%)

8 (23.5%)

 

 PDAC

5 (25.0%)

26 (39.4%)

 

5 (29.4%)

12 (35.3%)

 

 IPMN

0 (0%)

3 (4.5%)

 

0 (0%)

2 (5.9%)

 

 PNET

0 (0%)

3 (4.5%)

 

0 (0%)

0 (0%)

 

 Duodenal cancer

1 (5.0%)

1 (1.5%)

 

1 (5.9%)

0 (0%)

 

ECOG (n, %)

  

0.008

  

0.042

 0

13 (65.0%)

61 (92.4%)

 

12 (70.6%)

32 (94.1%)

 

 1

5 (25.0%)

4 (6.1%)

 

3 (17.6%)

2 (5.9%)

 

 2

2 (10%)

1 (1.5%)

 

2 (11.8%)

0 (0%)

 

Tumor size (cm ± SD)

2.98 ± 1.93

3.26 ± 1.49

0.562

2.8. ± 2.0

2.92 ± 1.25

0.844

Lymph node harvest (number ± SD)

15.35 ± 8.26

19.42 ± 9.88

0.075

16.94 ± 8.56

17.44 ± 7.77

0.840

Pre-op bile drain (n, %)

8 (66.7%)

39 (59.1%)

0.696

10 (58.8%)

21(61.8%)

0.537

Abdominal surgery history (n, %)

4 (20.0%)

13 (19.7%)

0.601

3 (17.6%)

8 (23.5%)

0.462

  1. Italic indicate statistic significance
  2. PSM propensity score matching, MIPD minimal invasive pancreatoduodenectomy, OPD open pancreatoduodenectomy, CCI Charlson comorbidity index, ASA score American Society of Anesthesiologists classification score, ECOG Eastern Cooperative Oncology Group