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Table 1 Age and sex of the studied population.

From: No bias of ignored bilaterality when analysing the revision risk of knee prostheses: Analysis of a population based sample of 44,590 patients with 55,298 knee prostheses from the national Swedish Knee Arthroplasty Register

Factor

Females

Males

Age

  

   0 – 14

-

-

   15 – 19

1

-

   20 – 24

7

-

   25 – 29

15

3

   30 – 34

28

7

   35 – 39

61

22

   40 – 45

119

40

   45 – 49

229

125

   50 – 54

650

307

   55 – 59

1 408

842

   60 – 64

2 910

1 709

   65 – 69

5 185

2 741

   70 – 74

7 404

3 794

   75 – 79

7 927

3 363

   80 – 84

3 494

1 541

   85 +

905

383

Total

29 713

14 877