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. 2022 Jul 9;22:891. doi: 10.1186/s12913-022-08305-7

Table 1.

Basic background characteristics of the study population in hip (THA) and knee (TKA) arthroplasty in 2010 − 2013 and 2014 − 2017

THA TKA
Variable Category 2010 − 2013 2014 − 2017 2010 − 2013 2014 − 2017
Gender † Women 56 57 66 65
Age (years)a -49 5 5 3 3
50–54 6 6 6 6
55–59 10 10 11 11
60–64 16 14 17 15
65–69 18 20 17 20
70–74 18 18 19 18
75–79 15 15 16 15
80 +  12 12 11 11
Comorbiditiesa 1 15 16 17 18
2 +  4 5 4 5
Educationa Basic 46 38 49 39
Secondary 31 34 33 38
Higher 23 27 18 23
Occupationa Higher white-collar 14 16 11 13
Lower white-collar 30 32 31 34
Blue-collar 36 34 39 36
Farmer 10 8 10 7
Other 10 10 9 10
Income Lowest 18 15 18 14
2 28 27 30 27
3 21 21 21 23
4 16 18 16 18
Highest 17 19 15 18
Population needb Musculoskeletal disorder index 78, 193 65, 166 78, 193 65, 166
Number of operations 28 139 31 271 40 620 43 242

aproportion

brange