Table 2.
Correlations between age at referral (T0) and BMI and BMI-SDS of inpatients with Anorexia Nervosa (AN) or atypical AN
| All (n = 469) | AN (n = 404) | Atypical AN (n = 65) | AN < 15 years (n = 171) | Atypical AN < 15 years (n = 29) | AN ≥ 15 years (n = 233) | Atypical AN ≥ 15 years (n = 36) | |
|---|---|---|---|---|---|---|---|
| BMI kg/m2 | |||||||
| r | 0.28* | 0.32* | 0.24 | 0.47* | 0.54 | 0.03 | 0.09 |
| P | 5.2 × 10–13 | 3.5 × 10–11 | 0.058 | 1.19 × 10–10 | 0.003 | 0.618 | 0.597 |
| CI | [0.19, 0.37] | [0.23, 0.41] | [− 0.02, .46] | [0.33, 0.59] | [0.23, 0.77] | [− 0.11, 0.18] | [− 0.29, 0.43] |
| BMI-SDS | |||||||
| r | − 0.30* | − 0.31* | − 0.21 | 0.02 | 0.28 | − 0.26* | − 0.06 |
| P | 2.3 × 10–11 | 1.15 × 10–10 | 0.099 | 0.842 | 0.146 | 4.9 × 10–5 | 0.714 |
| CI | [− 0.39, − 0.21] | [− 0.39, − 0.22] | [− 0.44, 0.04] | [− 0.15, 0.18] | [− 0.12, 0.64] | [− 0.39, − 0.13] | [− 0.42, 0.28] |
r correlation coefficient (Spearman’s rho), p P value, CI: 95% confidence intervals computed by bias corrected and accelerated bootstrap method, y years
*Significant after Bonferroni correction (P < 2.38 × 10–3)