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Table 4 Predictors of refeeding hypophosphatemiaa

From: Extreme anorexia nervosa: medical findings, outcomes, and inferences from a retrospective cohort

 

Hypophosphatemia (N = 98)

Normal Phosphorus (N = 123)

  

Factors

Meanb

SDb

Meanb

SDb

t-testc

p value

Nadir BMI

11.8

1.4

12.4

1.3

3.31

0.001

Nadir %IBW

56.7

6.3

58.5

5.5

2.21

0.03

Admission Glucose (mmol/L)

4.7

3.9–5.6

4.4

3.9–5.2

11,630

0.06

Admission Albumin (g/L)

36.8

6.8

38.0

6.3

− 1.41

0.16

Admission Prealbumin (g/L)

0.19

0.08

0.21

0.06

−1.87

0.06

Admission WBC (109 L− 1)

4.8

2.5

4.3

2.7

−1.41

0.16

Lean Mass (g)d

27,597

4351

28,578

5702

−0.92

0.36

 

N

%

N

%

χ2

pvalue

Elevated admission AST (>  40 U/L)

41

42

45

37

0.63

0.42

Elevated admission ALT (>  45 U/L)

49

50

54

44

0.81

0.37

  1. BMI Body mass index, IBW Ideal body weight, WBC White blood cell, AST Aspartate aminotransferase test, ALT Alanine aminotransferase test
  2. aHypophosphatemia defined as phosphorus < 0.87 mmol/L. 60 patients with hypophosphatemia on admission were excluded
  3. bMedian (IQR) for not normally distributed variables
  4. cMann-Whitney U test
  5. dData for lean mass (g) was available for 38 patients with refeeding hypophosphatemia and 66 patients with normal phosphorus
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Journal of Eating Disorders

ISSN: 2050-2974