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Table 1 Effect of age on length of stay

From: The effects of advanced age on primary total knee arthroplasty: a meta-analysis and systematic review

Reference number First author Year of publication Number of patients LOS geriatric (95 % CI) LOS control (95 % CI) P value Age groups
17 Adam 1994 107 22a 16a Not reported >75, < 75
21 Hilton 2004 130 13 (5–29) 10 (8–22) <0.001 80–90, 60–70
24 Clement 2011 598 8.3a 6.2a <0.001 >80, 65–74
29 Kuo 2014 150 6.1a 5.7a 0.061 >80, 65–74
30 Jones 2001 257 7 (5–9) 6 (4–8) 0.04 >80, < 80
33 Vincent 2006 424 10.6a 8.7a 0.004 >70, < 60
34 Smith 2008 2096 11.8a 8.8a <0.001 >80, 60–69
  1. aConfidence interval not reported