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Table 1 Clinical characteristics of included patients

From: Closed suction drainage offers no more clinical benefit than non-drainage after primary total knee arthroplasty with the administration of tranexamic acid in Chinese patients

ParametersDrainage (n = 100)Non-drainage (n = 100)Total (n = 200)p value
Age, year (range)75 (65–89)74.5 (67–84)75.1 (65–89)0.575
Gender
 Male20 (20.0)22 (22.0)42 (21.0)0.728
 Female80 (80.0)78 (78.0)158 (79.0) 
BMI (kg/m2)25.25 ± 3.3424.5 ± 2.3825.0 ± 3.210.322
Hospitalization time (days)7.0 ± 0.86.0 ± 0.86.5 ± 0.91< 0.001
SLR (h)22.98 ± 1.8823.00 ± 2.1122.99 ± 1.990.944
  1. Data are shown as mean ± standard deviation or numbers (%)
  2. Abbreviations: BMI body mass index, SLR straight-leg raising