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Table 1 Clinical profiles and biochemical data of women with bulimia nervosa and healthy controls

From: Plasma intact fibroblast growth factor 23 levels in women with bulimia nervosa: A cross-sectional pilot study

  BN patients with high frequency of binge eating (n = 8) BN patients with low frequency of binge eating (n = 5) Controls (n = 11) Normal values p
Body Mass Index (kg/m2) 19.9 (18.4-22.0) 18.6 (18.2-18.6) 19.7 (19.5-21.8)   0.103
Age (years) 28 (25-28) 25 (23-27) 27 (21-29)   0.792
age at the time of disease onset (years) 19 (18-21) 19 (18-20)    
disease duration (years) 5.8 (4.0-9.8) 6.0 (3.5-9.0)    
frequency of binge eating 2-3/week (2-3/week-1/day)* 1/month (1/month-1/month)    
frequency of vomiting 2-3/week (occasionally-1/day) occasionally (occasionally-occasionally)    
uncorrected Ca (mg/dl) 8.8 (8.7-9.3) 9.4 (9.2-9.7) 8.9 (8.7-9.1) 8.5-10.2 0.204
P (mg/dl) 3.6 (2.9-4.1) 3.5 (2.9-3.6) 2.9 (2.5-3.2) 2.4-4.3 0.133
intact PTH (pg/ml) 62 (43-69) 54 (45-55) 38 (33-45) 10-65 0.073
1,25-(OH)2D (pg/ml) 39.4 (17.1-55.6) 38.2 (37.7-42.9) 39.7 (20.9-47.5) 20.0-60.0 0.837
25-OHD (ng/ml) 15 (13-16) 18 (17-19) 20 (15-21) 7-41 0.186
  1. All values are shown as the median (first quartile-third quartile). The p-values in the rightmost column were calculated using the Kruskal-Wallis test.
  2. * p < 0.05 vs. BN patients with low frequency of binge eating (two-tailed Mann-Whitney U-test)
  3. BN; bulimia nervosa. PTH; parathyroid hormone. 1,25-(OH)2D; 1,25-dihydroxyvitamin D. 25-OHD; 25-hydroxyvitamin D.