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Table 1 Patient demographics of both the retrospective, multivariate linear regression model group and the prospective group used for comparison of digital templating and the demographic-based sizing equations

From: Demographic data is more predictive of component size than digital radiographic templating in total knee arthroplasty

Retrospective cohort (n = 201) Prospective cohort (n = 181)
Demographics Number Percentage Demographics Number Percentage
Gender Male 73 36.3% Male 61 33.7%
Female 128 63.7% Female 120 66.3%
Laterality Right 107 53.2% Right 88 48.6%
Left 94 46.8% Left 93 51.4%
Ethnicity/race White 151 75.1% White 133 73.5%
Black 25 12.4% Black 27 14.9%
Hispanic 15 7.5% Hispanic 17 9.4%
Asian 5 2.5% Asian 2 1.1%
Middle Eastern 3 1.5% Middle Eastern 1 0.6%
Indian 2 1.0% Indian 1 0.6%
  Mean Standard deviation Range Mean Standard deviation Range
Age (years) 66.0 9.9 42–89 65.8 9.7 44–86
BMI (kg/m2) 33.6 7.1 20.2–57.9 34.2 7.1 20.4–62.2
Height (cm) 168.3 10.7 139.7–198.1 167.4 10.7 134.6–193
Weight (kg) 95.3 22.8 53–180.5 96.2 23.1 49.4–181.4
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Knee Surgery & Related Research

ISSN: 2234-2451

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