Dimensions within 24 weight history indices and their association with inpatient treatment outcome in adults with anorexia nervosa: analysis of routine data

Table 9 Summary of statistically significant associations between weight history indices and treatment changes

Index	BMI	Eating disorder psychopathology	Bulimic symptoms	Slimness ideal	Compensatory behaviors
Highest weight		+^**	+^*	+^*	+^*
Lowest weight	–^***	+^**		+^***	+^**
Highest BMI	+^**	+^**	+^*
Lowest BMI	–^*	+^**		+^***	+^**
Highest BMI percentage	+^*	+^**	+^**
Lowest BMI percentage	–^**	+^**		+^***	+^**
WS	+^***	+^**	+^*	+^*
WE	–^***	–^*		–^***	–^*
BMI suppression	+^***	+^**	+^*
BMI elevation	–^***	–^**			–^**
BMI suppression percentage	+^***	+^**	+^**	+^**
BMI elevation percentage	–^***	–^**		–^***	–^**
BMI oscillation	+^***
PWC	+^***	+^**	+^*	+^*	–^*
Residual 1	–^***
Residual 2	+^**	+^**	+^*	+^*
Residual 3	–^***
Residual 4	+^*	+^*		+^***	+^*
h-AFW		+^**	+^***
l-AFW	–^***	+^*		+^**	+^*
Age at highest weight		–^*	–^***
Age at lowest weight		–^***	–^***	–^*
Years since highest weight		–^**		–^***	–^**

Note. No statistically significant association with “years since lowest weight”. The signs of the three best predictors based on β for each outcome in boldface
BMI body mass index, WS weight suppression, WE weight elevation, PWC percentage weight change, Residual 1 highest on admission weight, Residual 2 admission on highest weight, Residual 3 lowest on admission weight, Residual 4 admission on lowest weight, h-AFW highest age-factored weight, l-AFW lowest age-factored weight
^*Statistically significant at p = 0.05, ^** at p = 0.01, and ^*** at p < 0.001. + = higher index values associated with more pronounced improvement, − = higher index values associated with less pronounced improvement

ISSN: 2050-2974