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Table 2 Propensity score matching description

From: Validity of upfront surgery for patients with unsuspected lymph node metastasis in esophageal cancer: a propensity scoring matching study

Covariates Total Population Propensity-matched Population
WL
(n = 160)
UL
(n = 55)
p-value standardized difference WL
(n = 55)
UL
(n = 55)
p-value standardized difference
Age 63.5 ± 9.1 60.7 ± 6.7 0.014 −0.430 61.0 ± 9.4 60.7 ± 6.7 0.842 −0.046
Sex (Male) 144 (90%) 55 (100%) 0.014 N/A 55(100%) 55(100%) N/A N/A
NT 24(15%) 29(52.7%) < 0.001 0.749 21(38.2%) 29(52.7%) 0.180 0.289
Ivro Lewis 146 45 0.080 0.242 42 45 0.640 −0.140
pT Stage 2.1 ± 1.0 3.0 ± 0.9 < 0.001 0.953 2.6 ± 1.1 3.0 ± 0.9 0.132 0.448