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Table 2 Correlation between prevalence of Achilles and plantar spurs in men and women with increasing age

From: Changes in prevalence of calcaneal spurs in men & women: a random population from a trauma clinic

Age Male Female
  r P r P
0 to 9 0.00 0.02 0.00 0.04
10 to 19 0.00 0.04 0.00 0.01
20 to 29 -0.03 0.02 0.71 0.01
30 to 39 0.15 0.01 0.51 0.03
40 to 49 0.33 0.04 0.43 0.04
50 to 59 0.38 0.01 0.38 0.02
60 to 69 0.36 0.02 0.36 0.01
70 to 79 0.35 0.00 0.36 0.00
80 + 0.29 0.02 0.34 0.01
  1. Note there is a moderate positive correlation (r = 0.71) for women <30 years of age and fair >30 years old (0.30 < r > 0.59). Yet, in men there was only a weak positive correlation up to 40 years old (r < 0.15) and fair correlation in those >50 years old (0.30 < r < 0.38).