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Table 1 Characteristics of patients in unmatched group and the propensity score matched group

From: Delayed gastric emptying after Pancreaticoduodenectomy: a propensity score-matched analysis and clinical Nomogram study

Parameter Before propensity matching After propensity matching
PPPD group
(n = 67)
PrPD group
(n = 241)
P value PPPD group
(n = 52)
PrPD group
(n = 52)
P value
Age (years) 62.4 ± 13.0 62.1 ± 11.0 0.868 63.1 ± 13.2 63.4 ± 11.5 0.893
Gender (male/female) 37/30 162/79 0.069 30/22 24/28 0.326
Diabetes mellitus(%) 6(9) 35(14.5) 0.235 4(7.7) 3(5.8) 0.696
Albumin(g/dL) 38.7 ± 5.0 38.6 ± 4.8 0.891 38.2 ± 5.30 39.2 ± 5.07 0.352
WBC(/L) 6.4 ± 2.1 6.2 ± 2.3 0.595 6.25 ± 2.14 6.36 ± 2.03 0.797
TB (umol/L) 88.9 ± 96.0 98.9 ± 113.0 0.514 96.1 ± 98.9 96.5 ± 104.1 0.982
Malignant tumor(%) 62(92.5) 227(94.2) 0.575 47(90.4) 45(86.5) 0.760
Jaundice reduced(%) 5(7.5) 12(5) 0.544 5(9.6) 7(13.5) 0.539
  1. WBC white blood cell, TB total bilirubin