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. Author manuscript; available in PMC: 2012 May 1.
Published in final edited form as: Rheumatol Int. 2011 Jan 21;32(5):1197–1208. doi: 10.1007/s00296-010-1749-y

Table 2.

Descriptive characteristics of study sample (n = 160)

All (n = 160) No ACL tear (n = 137) ACL tear (n = 23)
Gender (female n (%)) 81 (51) 76 (56) 5 (22)
Age (mean, SD) years 62.1 (9.9) 62.9 (9.5) 57.5 (10.8)
Age group (≤65 years n (%)) 95 (59) 77 (56) 18 (78)
BMI (mean, SD) kg/m2 30.3 (4.7) 30.3 (4.7) 30.5 (4.8)
Index knee (left n (%)) 78 (49) 69 (50) 9 (39)
Kellgren and Lawrence grade of index knee, no. (%)
    0 6 (4) 6 (4) 0 (0)
    1 18 (11) 17 (12) 1 (4)
    2 58 (36) 51 (37) 7 (30)
    3 64 (40) 54 (39) 10 (44)
    4 14 (9) 9 (7) 5 (22)
History of knee and hip surgery including arthroscopy (yes for study knee n (%)) 45 (28.9) 31 (22.6) 14 (60.9)
History of knee injury (yes for study knee n (%)) ever injured badly enough to limit ability to walk for at least 2 days 75 (47.2) 53 (38.7) 22 (95.7)