Table 2. Mean ± standard deviation of age, breast size, body mass index (BMI) frequency of sports bra use and training hours between participants who did not report (no injury) and did report (injury) contact breast injuries and frictional breast injuries.
| Variable |
Contact breast injuries |
Frictional breast injuries |
| No injury |
Injury |
p-value |
No injury |
Injury |
p-value |
| Age (years) |
25.5 ± 9.2 |
26.1 ± 9.7 |
0.578 |
25.0 ± 8.8 |
28.3 ± 11.0 |
0.011 |
| Breast size (rank) * |
1.2 ± 0.5 |
1.5 ± 0.6 |
<0.001 |
1.2 ± 0.5 |
1.6 ± 0.6 |
<0.001 |
| BMI (kg/m2) |
22.6 ± 3.0 |
24.1 ± 3.8 |
<0.001 |
22.8 ± 3.0 |
23.8 ± 4.1 |
0.123 |
| Sports bra use (rank) # |
1.1 ± 0.5 |
1.2 ± 0.6 |
0.098 |
1.2 ± 0.5 |
1.2 ± 0.7 |
0.951 |
| Training (hours) |
12.2 ± 7.8 |
12.1 ± 9.8 |
0.257 |
11.9 ± 8.1 |
13.3 ± 9.6 |
0.211 |
# Frequency of sports bra use ranked from 1 (always) to 5 (never).*Breast size ranked from 1 (small breasts, < 350 ml per breast) to 4 (hypertrophic breasts, > 1200 ml per breast).
