Characterizing posterior calcaneal spur fractures in insertional Achilles tendinopathy: A case control study

Table 3 Comparison of female patients with and without spur fractures, n (%), mean ± SD (median, range)

Parameter	With spur fracture	Without spur fracture	P value
n	11 (18.6)	48 (81.4)
Age (years)	53.2 ± 11.3 (55, 35-69)	56.4 ± 13.4 (54.5, 31-78)	0.612
Height (cm)	161.1 ± 5.7 (161.9, 150-168)	157.0 ± 6.8 (157, 146.5-175)	0.051
Weight (kg)	73.3 ± 15.3 (76.1, 39.5-92.5)	72.1 ± 20.4 (65.5, 43.5-110.8)	0.532
Body mass index	28.3 ± 6.3 (27.9, 16.4-39.4)	29.2 ± 7.0 (26.7, 19.6-43.7)	0.984
Side (left, right)	11 (5, 6)	48 (20, 28)	1.00
Spur length	10.7 ± 4.0 (9, 6-17)	4.8 ± 2.1 (5, 1-10)	< 0.001c

^cP < 0.001.

The Mann-Whitney U test was used. P values were compared against the Bonferroni-adjusted significance threshold of P < 0.002.