Case Control Study
Copyright ©The Author(s) 2022.
World J Orthop. Sep 18, 2022; 13(9): 791-801
Published online Sep 18, 2022. doi: 10.5312/wjo.v13.i9.791
Table 4 Subgroup analysis among groups > 40 years
Factor
mean
SD
t
df
P value
% Elastin fragmentationNS (25)31.8018.123-7.443.93< 0.0001
S (31)67.1016.96
Collagen content (area %)NS (25)55.127.62-3.453.190.001
S (31)63.5810.75
Elastic content (area %)NS (25)34.8987.924.2046.6< 0.0001
S (31)26.576.60
Elastin/Collagen ratioNS (25)0.630.145.5450.09< 0.0001
S (31)0.430.13
Width of elastin fibersNS (25)3.750.984.4231.94< 0.0001
S (31)2.770.49
Ligamentocyte numbersNS (25)46.5622.4.01.8841.030.66
S (31)36.61215.41