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Table 1 Selected characteristics documented in 230 clinical notes for 130 adolescent patients (77 females and 53 males) ages 12-17 years presenting with a metabolic disturbance potentially associated with abuse of over-the-counter (OTC) products for weight control a

From: Clinician identification of youth abusing over-the-counter products for weight control in a large U.S. integrated health system

  Females Males P-Valueb
(N = 146 Notes) (N = 84 Notes)
Mean age, years (std. dev) 15.5 (1.48) 15.5 (1.56) 0.8979
Weight status c , % (n)    
Underweight 16.9 (13) 22.6 (12) 0.049
Healthy weight 52.0 (40) 30.2 (16)  
Overweight 15.6 (12) 15.1 (8)  
Obese 15.6 (12) 32.1 (17)  
Any previous eating disorder diagnosis, % (n) 7.8 (6) 3.8 (2) 0.349
Type of condition noted d , % (n)    
Electrolyte disturbance 8.2 (12) 8.3 (7) 0.976
Hypochloremic alkalosis 0 0 N/A
Hypermagnesmia 0 0 N/A
Hypoalbuminemia 6.2 (9) 2.4 (2) 0.195
Hypokalemia 0 0 N/A
Hyperchloremic acidosis 0 0 N/A
Hyponatremia 0 0 N/A
Hypophospatemia 1.4 (2) 2.4 (2) 0.572
Metabolic acidosis 7.5 (11) 8.3 (7) 0.820
Metabolic alkalosis 4.8 (7) 3.6 (3) 0.661
  1. aData are aggregated from 230 notes over a 29-month observation period from Aug. 1, 2005, through Dec. 31, 2010.
  2. bP-value from Pearson Chi-square test of gender differences.
  3. cWeight status categories defined according to BMI percentile for age and sex as follows: obese: BMI ≥ 95th; overweight: 95th > BMI ≥ 85th; healthy weight: 15th ≤ BMI < 85th; underweight: BMI < 15th.
  4. dPatients could be diagnosed with more than one metabolic disturbance.