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Table 2 Demographic factors, laboratory data at admission, and treatment indicators of admissions with severe malnutrition (N = 63)

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

Characteristic

Value

Normal range for Japanese women in their 30s a

Age

37.2 ± 10.4 years (range: 14 to 59 years)

 

Sex (female participants)

96.8%

 

Anorexia nervosa subtype (restrictive subtype)

45 (71.4%)

 

Weight at admission (kg)

29.1 ± 4.5

 

Body mass index at admission

11.5 ± 1.6

14.1–28.9

Hemoglobin (g/dl)

12.0 ± 2.8

(7.45 ± 0.99 mmol/l)

11.4–14.6

(7.07–9.06 mmol/l)

Albumin (g/dl)

3.7 ± 0.7

4.1–5.0

Serum potassium level (mmol/l)

3.5 ± 0.9

3.6–4.7

Blood urea nitrogen (mg/dl)

27.7 ± 24.5

(9.89 ± 8.75 mmol/l)

7.7–17.7

(2.75–6.32 mmol/l)

Creatinine (mg/dl)

0.86 ± 0.56

(0.08 ± 0.05 mmol/l)

0.49–0.76

(0.04–0.04 mmol/l)

Blood urea nitrogen/creatinine ratio at admission

33.6 ± 19.8

 

Serum phosphorus level at admission (mg/dl)

3.9 ± 1.4

(1.23 ± 0.45 mmol/l)

3.0–4.5

(0.97–1.45 mmol/l)

Nadir serum phosphorus level (mg/dl)

2.6 ± 0.8

(0.84 ± 0.26 mmol/l)

3.0–4.5

(0.97–1.45 mmol/l)

Total caloric intake during the first 7 days (kcal/day)

1233 ± 590

 

Weight gain during the first 7 days (kg)

1.1 ± 1.8

 

Weight gain during hospitalization (kg)

2.9 ± 2.5

 

Intravenous phosphorus administration during the first 7 days (mmol/day)

9.2 ± 6.2

 

Interval between admission and the hospital day of nadir hypophosphatemia (days)

3.9 ± 4.0

 

Duration of hospitalization (days)

43.3 ± 32.4

 
  1. ahttps://www.mhlw.go.jp/toukei/kouhyo/data-kou18/data12/junkan-h12-5.pdf and https://www.jslm.org/books/guideline/2018/03.pdf