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Table 1 Characteristics of the primary TKA cohort preoperatively and at 2-year follow-up

From: Are outcomes after total knee arthroplasty worsening over time? A time-trends study of activity limitation and pain outcomes

  Preoperatively (n = 7,229) 2-year (n = 7,139)
Gender   
    Females 55% 56%
    Males 45% 44%
Age   
    ≤60 19% 18%
    >60- 70 35% 35%
    >70- 80 38% 38%
    >80 8% 8%
BMI   
    <25 13% 13%
    25.1- 30 35% 35%
    30.1- 35 30% 29%
    35.1- 40 14% 14%
    >40 8% 9%
ASA class   
    I-II 57% 58%
    III-IV 43% 42%
Diagnosis   
    Inflammatory arthritis 4% 4%
    Osteoarthritis 94% 94%
    Other 2% 2%
Cement fixation   
    Uncemented 2% 2%
    Cemented/ hybrid 98% 98%
  1. BMI, Body mass index.
  2. 31 missing for BMI, 30 missing for ASA score.