Characteristics of the asymptomatic control group (CON), the ACL rupture group (ACL), and the ACL subgroup with a non-contact (NON) mechanism of injury
| CON (N=234) | ACL (N=227) | p Value * | NON (N=126) | p Value † | |
|---|---|---|---|---|---|
| Sex (% males) | 61.5 (234) | 73.1 (227) | 0.008 | 74.6 (126) | 0.013 |
| Age (years) | 29.3±11.3 (228) | 26.8±11.0 (198) | 0.019 | 26.6±10.5 (120) | 0.028 |
| Weight (kg) | 74.0±14.7 (229) | 80.2±16.9 (206) | <0.001 (0.002) | 79.8±15.8 (123) | <0.001 (0.011) |
| Height (cm) | 175.0±9.4 (228) | 177.5±9.3 (206) | 0.006 (0.231) | 178.0±9.1 (122) | 0.004 (0.153) |
| BMI (kg/cm2) | 23.8±4.1 (228) | 24.6±5.8 (206) | 0.107 | 24.6±5.4 (122) | 0.141 |
| COB (% SA) | 86.2 (225) | 82.7 (208) | 0.769 | 82.9 (123) | 0.814 |
Data reported as mean±SD, except for sex and COB which are presented as frequency (%).
The number of participants with available data for each variable is reported in parentheses.
Age, weight and BMI are self-reported values at the time of first ACL rupture for the ACL group and NON subgroup, and at time of recruitment for the CON group.
Unadjusted p values are shown, with the exception of weight and height which have adjusted p values in parentheses. Weight has been adjusted for age and sex, and height has been adjusted for sex only.
Significant p values are noted in italics.
*CON vs ACL.
†CON vs NON.
ACL, anterior cruciate ligament; BMI, body mass index; COB, country of birth; SA, South African.