Table 1.
Female Adolescent Athletes' Characteristics By Response to the Question, “Do You Think It Is Normal to Lose Your Period During High Levels of Athletic Training?”
| Variable |
Answer |
P Value |
|
| Yes (n = 40) | No (n = 50) | ||
| Current age, y | 15.5 (14.7, 16.5)a | 15.2 (14.4, 16.3) | .30 |
| Age of menarche | 12.3 (12.0, 13.0) | 12.0 (11.0, 13.0) | .26 |
| Body mass index, kg/m2 | 21.2 (19.7, 23.3) | 22.8 (20.6, 25.6) | .04b |
| Menstrual dysfunction in past year | 12 (30%)c | 12 (24%) | .63 |
| Training, h/wk | 12 (10, 14) | 12 (10, 15) | .93 |
| History of stress fracture | 1 (3%) | 5 (10%) | .22 |
| Worried about weight | 1 (3%) | 8 (18%) | .04b |
| On a special diet | 5 (13%) | 4 (8%) | .73 |
| Family Affluence Scale score | 10 (9, 11) | 9 (8, 10) | .01b |
| Primary sport | Cheerleading = 2 Cross-country = 6 Dance = 1 Gymnastics = 2 Marching band = 1 Pom = 4 Soccer = 5 Softball = 4 Swimming = 2 Tennis = 1 Track and field = 3 Unspecified = 2 Volleyball = 7 | Basketball = 2 Cheerleading = 1 Cross-country = 3 Equestrian = 1 Gymnastics = 3 Martial arts = 1 Pom = 11 Skiing = 1 Soccer = 4 Softball = 7 Swimming = 2 Track and field = 2 Unspecified = 2 Volleyball = 10 | Not applicable |
a
Continuous variables = median value (interquartile range).
b>
Indicates difference between groups (P < .05).
c
Categorical variables = value (%).