Readiness to recover in adolescent anorexia nervosa: prediction of hospital admission

OBJECTIVES

To determine if motivation to change in anorexia nervosa during treatment is a predictor of hospitalisation in adolescent patients.

METHOD

The Anorexia Nervosa Stages of Change Questionnaire (ANSOCQ), the Eating Disorders Inventory-2 (EDI-2) and the Beck Depression Inventory (BDI) were administered to a group of 70 anorexia nervosa patients (mean age 15.6 years). They were all receiving treatment at a specialised Eating Disorder Unit and were at different points in the treatment programme. Admission during 6-9 month follow-up was recorded in 63 of these patients who had been admitted to the Unit. The other 7 patients were contacted by phone to determine if they had been hospitalised in another unit during the follow-up period.

RESULTS

Patients who needed hospital admission during follow-up had higher mean scores at first evaluation on some of the EDI-2 scales and on the BDI, lower ANSOCQ scores and were more likely to have been outpatients at first evaluation. In the logistic regression analysis a low ANSOCQ score and being an outpatient at first evaluation were shown to be independent predictors of hospitalisation during follow-up.

CONCLUSIONS

Low motivation to change, depressive symptomatology and some EDI-2 scales are related to the necessity of hospital admission in adolescent patients with anorexia nervosa.

Validity of a measure of readiness to recover in Spanish adolescent patients with anorexia nervosa

The objective of the present study was to evaluate readiness to recover in adolescent patients with anorexia nervosa with a Spanish version of the Anorexia Nervosa Stages of Change Questionnaire (ANSOCQ). Three measures-the ANSOCQ, the Eating Disorders Inventory-2 (EDI-2) and the Beck Depression Inventory (BDI)-were administered to a group of 70 anorexia nervosa patients (mean age = 15.6 yrs) who were receiving treatment at a specialized eating disorder unit and had reached different stages of the treatment programme. The ANSOCQ was administered again after one week in 42 patients to evaluate test-retest reliability. The ANSOCQ demonstrated good internal consistency (Cronbach's alpha =.94) and one week test-retest reliability (r =.90). Negative, significant correlations were found between the ANSOCQ and several scales on the EDI-2 (r between -.50 and -.72) and the BDI (r = -.68). The Spanish version of the ANSOCQ seems a reliable instrument to evaluate readiness to recover in adolescents with anorexia nervosa.

Forward-backward asymmetries of lepton pairs in events with a large-transverse-momentum jet at hadron colliders

We discuss forward-backward charge asymmetries for lepton-pair production in association with a large-transverse-momentum jet at hadron colliders. The lepton charge asymmetry relative to the jet direction A(j)(FB) gives a new determination of the effective weak mixing angle sin((2)theta(lept)(eff)(M(2)(Z)) with a statistical precision after cuts of approximately 10(-3) (8x10(-3)) at LHC (Tevatron). This is to be compared with the current uncertainty at LEP and SLD from the asymmetries alone, 2x10(-4). The identification of b jets also allows for the measurement of the bottom-quark-Z asymmetry A(b)(FB) at hadron colliders, the resulting statistical precision for sin((2)theta(lept)(eff)(M(2)(Z)) being approximately 9x10(-4) (2x10(-2) at Tevatron), also lower than the reported precision at e(+)e(-) colliders, 3x10(-4).