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. Author manuscript; available in PMC: 2020 Sep 1.
Published in final edited form as: Osteoarthritis Cartilage. 2019 May 25;27(9):1315–1323. doi: 10.1016/j.joca.2019.05.008

Table 4.

Minimum, maximum, median, 5th percentile, and 75th percentile of osteophyte volume (mm3) of the trapezium (TPM) and first metacarpal (MC1). The values listed for the non-OA are those of the healthy reference library and represent volumes associated with variations in bone shapes across that cohort.

Women Men
TPM min max median 25th% 75th% n min max median 25th% 75th% n

non-OA 36.8 117.2 59.2 39.3 92.6 25 60.6 163.5 109.1 69.3 136.7 21
OA 0 yr 38.5 414.9 79.7 21.2 176.7 47 59.9 802.5 163.3 25.2 364.9 43
OA 1.5 yr 36.3 279.9 100.4 35.5 210.9 42 58.2 719.5 187.0 61.6 383.1 42
OA 3 yr 46.0 357.8 108.4 35.0 239.1 42 62.7 764.4 236.0 65.3 461.3 39
MC1 min max median 25th% 75th% n min max median 25th% 75th% n

non-OA 6.3 116.1 43.2 16.6 82.3 25 34.3 224.2 72.2 29.2 138.6 21
OA 0 yr 10.6 381.4 59.0 4.7 155.5 47 29.2 560.5 119.7 24.1 260.7 43
OA 1.5 yr 4.7 402.8 79.1 7.3 195.3 42 20.9 607.7 149.3 35.5 309.1 42
OA 3 yr 6.6 400.1 83.7 9.5 201.1 42 13.7 460.6 176.8 54.8 335.0 39