Table 3

Trends in OS for both sexes and by age range and type of surgery

SpANon-SpA
Linear trend95% CI% AnnualP valueLinear trend95% CI% AnnualP value
OS (all)1.0491.032 to 1.0664.9201.0841.068 to 1.18.410
 Aged 20–400.9820.963 to 1.002−1.80.0741.0471.025 to 1.074.740
 Aged 40–601.021.012 to 1.028201.0721.056 to 1.0877.150
 Aged 60–801.0831.071 to 1.0958.301.091.073 to 1.1079.020
 Aged >801.1431.098 to 1.18914.301.1021.077 to 1.12810.250
THA (all)1.010.99 to 1.030.9790.3371.0571.043 to 1.075.650
 Aged 20–400.9480.907 to 0.991−5.1920.0180.9840.931 to 1.04−1.5810.572
 Aged 40–600.9750.967 to 0.983−2.52101.0371.011 to 1.0643.7270.006
 Aged 60–801.0541.033 to 1.0745.35401.061.042 to 1.0785.9580
 Aged >801.1281.083 to 1.17412.75401.0861.056 to 1.1178.5660
TKA (all)1.0931.077 to 1.1099.29101.0961.077 to 1.1159.5570
 Aged 20–401.0070.976 to 1.0390.6760.675The model fails to converge when group one is included
 Aged 40–601.0481.035 to 1.064.76801.1151.088 to 1.14311.5280
 Aged 60–801.0911.08 to 1.1029.10901.0911.069 to 1.1129.060
 Aged >801.1821.092 to 1.2818.19901.1241.084 to 1.16512.3830
ULA (all)1.0911.068 to 1.1159.1101.1031.079 to 1.12810.3110
 Aged 20–401.0270.97 to 1.0882.720.3631.0380.988 to 1.093.7940.138
 Aged 40–601.0811.051 to 1.1138.12101.0821.057 to 1.1098.2450
 Aged 60–801.1261.092 to 1.16112.61501.1471.1 to 1.19514.660
 Aged >801.3110.986 to 1.74431.0860.0631.441.076 to 1.92743.9960.014
Arthrodesis (all)1.010.979 to 1.0431.0390.521.1071.046 to 1.17110.6840
 Aged 20–400.9760.899 to 1.06−2.3590.571.080.98 to 1.198.0130.119
 Aged 40–601.0160.981 to 1.0521.6190.3671.1381.058 to 1.22513.8460.001
 Aged 60–801.010.938 to 1.0881.0250.7871.0640.941 to 1.2026.3670.323
 Aged >801.1680.921 to 1.4816.7860.1991.2661.066 to 1.50326.5630.007
Spinal surgery (all)1.0671.054 to 1.086.68601.11.076 to 1.12510.0170
 Aged 20–401.0070.976 to 1.0390.6760.6751.071.019 to 1.1257.0490.007
 Aged 40–601.0481.035 to 1.064.76801.071.047 to 1.0936.9660
 Aged 60–801.0911.08 to 1.1029.10901.1671.13 to 1.20616.7440
 Aged >801.1821.092 to 1.2818.19901.2370.829 to 1.84623.6830.298
  • OS, orthopaedic surgery; SpA, spondyloarthritis; THA, total hip arthroplasty; TKA, total knee arthroplasty; ULA, upper limb arthroplasty.