From: Menarche delay and menstrual irregularities persist in adolescents with type 1 diabetes
 | Participants diagnosed with T1DM before menarche (n = 185) | Participants with T1DM diagnosed after menarche (n = 43) |
---|---|---|
Age at visit (years) | 15.8 ± 0.2 | 16.5 ± 0.3 |
Duration (years) | 7.7 ± 0.4** | 2.5 ± 0.312.17 ± 0.19 |
Age at Menarche (years) | 12.81 ± 0.09* |  |
A1c (%) | 9.4 ± 0.14 | 8.8 ± 0.32 |
Insulin dose (units/kg body weight/day) | 1.02 ± 0.02** | 0.0.76 ± 0.05 |
BMI (kg/m2) | 23.8 ± 0.4 | 23.9 ± 1.0 |
BMI z score | 0.74 ± 0.05 | 0.56 ± 0.14 |
Overweight (≥ 85th percentile for age) (%) | 32 | 35 |
Total physical activity | Â | Â |
Number of days of physical activity over last 7 days that the subject was physically active for at least 60 minutes per day | 2.6 ± 0.4 | 2.6 ± 0.2 |
In a typical week the number of days that they are physically active for at least 60 minutes per day | 3.0 ± 0.3 | 3.2 ± 0.2 |
Race/Ethnicity (%) | Â | Â |
White | 82 | 79 |
Hispanic | 8 | 5 |
Other | 0 | 6 |
Breast tanner staging (%) | Â | Â |
3 | 2 | 3 |
4 | 12 | 28 |
5 | 86 | 69 |
Pubic tanner staging | Â | Â |
3 | 5 | 4 |
4 | 9 | 24 |
5 | 86 | 72 |
Irregular menstrual periods (%) | 34 | 36 |