Body mass index and blood urea nitrogen to creatinine ratio predicts refeeding hypophosphatemia of anorexia nervosa patients with severe malnutrition

Table 4 Multiple linear regression analysis for the decrease in serum phosphorus level among patients with severe malnutrition

Variable	p-Value	Standard beta	Regression coefficient	Standard error	Lower 95% confidence limit	Upper 95% confidence limit
Serum phosphorus level at admission	1.886 × 10⁻¹⁵	0.7877	0.9071	0.0799	0.7466	1.0675
Body mass index	0.0195	−0.1808	−0.1828	0.0757	−0.3349	− 0.0306
Blood urea nitrogen/creatinine ratio	0.0455	0.1452	0.0120	0.0058	0.0002	0.0237
Albumin	0.0514	−0.1363	−0.3339	0.1673	−0.6699	0.0021
Serum potassium level	0.0535	0.1418	0.2571	0.1300	−0.0040	0.5181
Rate of weight gain	0.0645	0.1288	0.0316	0.0167	−0.0020	0.0652
Total energy intake/kg	0.1068	−0.1426	−0.0108	0.0065	−0.0239	0.0024
Hemoglobin	0.2860	0.0777	0.0460	0.0427	−0.0397	0.1318
Restrictive subtype	0.3049	0.0876	0.3146	0.3035	−0.2950	0.9241
Age	0.3582	0.0648	0.0102	0.0110	−0.0119	0.0323
Sex	0.4567	−0.0520	−0.4808	0.6410	−1.7682	0.8066
Intravenous phosphorus administration/total energy intake	0.7604	−0.0247	−4.8280	15.7467	−36.4561	26.8001

ISSN: 2050-2974