Table 5.
Alterations in Hemodynamic Status of a Subsample of 19 Adolescents With Anorexia Nervosa Returning for Follow-up After Weight Restoration
| Finding | Mean (SD) | Sample for Pairwise Comparison, No. |
95% CI | ||
|---|---|---|---|---|---|
| Inpatient | Outpatient | Change | |||
| Demographic characteristic | |||||
| BMI | 15.9 (1.9) | 18.1 (1.7) | 2.2 (1.6) | 19 | 1.4 to 3.0 |
| Percentage of MBW, % | 78 (9) | 88 (8) | 10 (8) | 19 | 6 to 14 |
| ECG data | |||||
| Heart rate, beats/min | 47.5 (12.7) | 60.3 (13.0) | 12.6 (12.8) | 18 | 6.2 to 19.0 |
| QRS axis, degrees | 76.5 (18.3) | 83.3 (10.9) | 7.4 (19.7) | 18 | −2.4 to 17.2 |
| Interval, sa | |||||
| QT | 0.45 (0.05) | 0.40 (0.03) | −0.06 (0.04) | 18 | −0.08 to −0.04 |
| QTc | 0.39 (0.03) | 0.39 (0.02) | −0.01 (0.03) | 18 | −0.02 to 0.01 |
| JT | 0.37 (0.04) | 0.31 (0.03) | −0.06 (0.04) | 18 | −0.08 to −0.04 |
| JTc | 0.32 (0.03) | 0.31 (0.02) | −0.02 (0.03) | 18 | −0.03 to 0.00b |
| Echocardiogram data | |||||
| LV mass, g | 105.5 (28.0) | 104.4 (17.6) | −6.6 (21.4) | 14 | −18.9 to 5.8 |
| LV mass Z score | −0.2 (1.2) | −0.9 (0.6) | −0.9 (1.3) | 14 | −1.6 to −0.1 |
| Septal thickness, cm | 0.8 (0.1) | 0.7 (0.1) | −0.1 (0.1) | 13 | −0.2 to 0.0c |
| Septal thickness Z score | −0.4 (0.7) | −1.2 (0.6) | −1.0 (0.9) | 13 | −1.6 to −0.5 |
| VCFc | 1.3 (0.2) | 1.1 (0.1) | −0.2 (0.2) | 14 | −0.3 to 0.0d |
| VCFc Z score | 2.0 (2.1) | 0.5 (1.5) | −1.7 (2.7) | 14 | −3.2 to −0.1 |
| Treadmill exercise test | |||||
| Test duration, min | 14.7 (4.3) | 15.3 (3.9) | 0.9 (1.7) | 17 | 0.0 to 1.7e |
| Peak tidal volume, L | 1.6 (0.2) | 1.7 (0.3) | 0.1 (0.2) | 17 | 0.0 to 0.2f |
| Peak ventilatory efficiency | 24.1 (3.2) | 25.9 (3.5) | 2.0 (3.3) | 17 | 0.3 to 3.7 |
| Forced vital capacity, L | 3.3 (0.4) | 3.6 (0.4) | 0.3 (0.4) | 17 | 0.1 to 0.5 |
| Forced expiratory volume in 1 s, L | 3.0 (0.4) | 3.2 (0.4) | 0.3 (0.4) | 17 | 0.1 to 0.4 |
Abbreviations: BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); CI, confidence interval; ECG, electrocardiogram; LV, left ventricle; MBW, median body weight; VCFc, velocity of circumferential fractional contraction.
The following formulas were used: QTc interval = QT interval/√RR interval; JTc interval = JT interval/√RR interval.
Exact 95% CI is −0.02900 to −0.00089 and does not contain 0. The 95% CI in the table appears to contain 0 due to rounding.
Exact 95% CI is −0.155 to −0.033 and does not contain 0.
Exact 95% CI is −0.285 to −0.021 and does not contain 0.
Exact 95% CI is 0.0050 to 1.7289 and does not contain 0. The 95% CI in the table appears to contain 0 due to rounding.
Exact 95% CI is 0.0431 to 0.2040 and does not contain 0.