Table 1.

Summary of physical features among gender groups

	Men (n = 269)	Women (n = 441)	Total (n = 710)
Age (years)	57.4 ± 12.6	58.8 ± 11.0	58.3 ± 11.7
Height (cm)	159.5 ± 8.9	157.8 ± 9.1*	158.4 ± 9.0
Weight (kg)	58.5 ± 10.9	57.8 ± 10.1	58.1 ± 10.4
BMI (kg/m2)	23.5 ± 2.8	22.8 ± 3.2*	23.1 ± 3.1
Serum HA levels (ng/ml)	65.2 ± 42.5	70.2 ± 46.2	68.3 ± 44.9
Supplement (%)	7.8	15.9*	12.8

Values are means ± standard deviation of age, height, weight, BMI and serum HA levels and percentage of joint supplement intake. Differences between men and women were compared using Mann–Whitney U test

BMI body mass index, HA hyaluronan

*P value <0.05 significant