Table 3 Age and adjusted risk of revision^a

Bini, S. et al., 2013 [31]

>55 years

0.43, 95 % CI 0.27 to 0.67, p < 0.001

Blum, M. et al., 2013 [29]

18–64 years vs. 65+ yrs

2.30, 95 % CI 1.96 to 2.69, p < 0.0001

Bordini, B. et al., 2009 [32]

Age at surgery (per year)

1.05, 95 % CI 1.03 to 1.06, p = 0.0001

Fehring, T. et al., 2004 [52]

Age at surgery (per year)

0.953, 99 % CI 0.932 to 0.975, p < 0.0001

Gioe, T. et al., 2004 [53]

Age <70 year

0.46, 95 % CI.0.33 to 0.64, p < 0.001

Harrysson, O. et al., 2004 [43]

Older patients (≥60 year)

Revision Attributable to Any Reason

Revision Attributable to Loosening of Components

0.49, 95 % CI 0.38 to 0.62, p < 0.0001

0.41, 95 % CI 0.27 to 0.62, p < 0.0001

Julin, J. et al., 2010 [35]

Age ≤ 55 years:

Revision for reasons other than infection

Revision for any reason

2.9, 95 % CI 2.3 to 3.6

2.4, 95 % CI 2.0 to 3.0 Age 56–65 years

Age 56–65 years:

Revision for reasons other than infection

Revision for any reason :

1.7 95 % CI 1.4 to 2.0

1.5, 95 % CI 1.3 to 1.7

Kreder, H. et al., 2003 [25]

Younger age per 10 year:

At 1 year after revision

At 3 years after revision

OR 0.77, 95 % CI 0.67 to 0.89

OR 0.70, 95 % CI 0.66 to 0.81

Lygre, S. et al., 2011 [37]

Age >70 year vs. <60 year

0.4, 95 % CI 0.3–0.4, 0 < 0.001

Namba, R. et al., 2013 [28]

Age (increasing 10 year increments)

0.62, 95 % CI 0.57 to 0.67, p < 0.001

Namba, R. et al., 2012 [27]

Age (increasing 10 year increments)

0.64, 95 % CI 0.58 to 0.70, p < 0.001

Rand, J. et al., 2003 [19]

Age 56–70 year vs. ≤55 years

Age >70 year vs. ≤55 years

0.7, 95 % CI 0.5 to 0.9, p < 0.01

0.5, 95 % CI 0.3 to 0.6, p < 0.0001

Stiehl, J. et al., 2006 [24]

Younger patients (for every yr increase)

0.979, 95 % CI 0.968 to 0.989