Table 1.
Comparable demographic characteristics of the derivation & validation cohort.
| Clinical variables | Derivation |
Validation |
p-value | |
|---|---|---|---|---|
| 500FG whole | 500FG Female | 300BCG | ||
| n | 478 | 266 | 232 | |
| Sex (% male) | 43.5 | – | 59.9 | |
| Age (years) | 23 (21–27) | 22 (20–26) | 23 (21–26) | p = 0.4480 |
| BMI | 22.22 (20.75–24.29) | 21.56 (20.48–23.58) | 22.21 (20.88–23.86) | p = 0.9499 |
| OCP (%) | – | 53.7 | – | |
Data are represented as Median (25th −75th percentile), age and BMI (500FG whole versus 300BCG) were compared by non-parametric Mann–Whitney test.
For the 500FG cohort, steroids data were available in 482 individuals, 4 outliers were excluded, 478 were included for analysis. Within the 500FG female subset, there were 270 female participants in total, 4 missing oral contraceptive information.
For the 300BCG cohort, steroids data were not available in females taking oral contraceptive pills, 232 individuals were included for analysis. OCP, oral contraceptive pills.