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Table 1 Sample characteristics at baseline

From: The Freiburg sport therapy program for eating disorders: a randomized controlled trial

Variable STG (N = 15)
M (SD) / N (%)
CG (N = 11)
M (SD) / N (%)
t-test /Chi2 df P
Sociodemographics     
 Age 24.3 (3.4) 27.2 (8.8) 1.17 24 0.25
 Female 14 (93.3) 11 (100) 0.76 1 0.38
 School > 10 years 15 (100) 9 (81.2) 2.96 1 0.09
 BMI (kg/m2) 20.3 (2.7) 19.2 (2.1) 1.15 24 0.26
Diagnosis
 AN* 5 (33.3) 5 (45.5) 1.68 2 0.43
 BN 9 (60.0) 4 (36.4)    
 OSFED 1 (6.7) 2 (18.1)    
Comorbidity (axis I)
 Depression 4 (26.7) 2 (18.2) 0.25 1 0.61
 Anxiety disorder 4 (26.7) 3 (27.3) 0.00 1 0.97
 OCD 2 (13.3) 2 (18.2) 0.12 1 0.74
 Other (dysthymia) 2 (13.3) 0 (0.0) 1.59 1 0.21
Trt before randomizationa
 Current outpatient pt. (yes) 13 (93%) 11 (100%) 0.82 1 0.37
 Number of sessions 21.9 (32.6) 55.6 (42.1) 2.0 18 0.06
ED symptomatology
 EDE interview total score 3.53 (1.19) 3.45 (1.13) - 0.17 24 0.87
 EDI-2 drive for thinness 11.87 (5.84) 11.5 (6.17) - 0,15 23 0.88
 EDI-2 bulimia 9.14 (6.21) 5.46 (3.98) −1.71 23 0.10
 EDI-2 body dissatisfaction 14.07 (6.52) 12.00 (8.73) −0.68 23 0.50
Exercise pathology
 CES total scorea 113.5 (14.0) 107.5 (24.5) −0.77 23 0.45
 CET total scorea 17.4 (1.28) 16.9 (1.30) −1.0 23 0.33
 EDS total scorea 74.4 (16.1) 68.4 (24.1) −0.75 23 0.46
SCL-27 GSIa 1.92 (0.62) 1.13 (0.61) 0.43 23 0.67
BDI-II total scorea 23.9 (9.05) 20.0 (7.46) −1.14 23 0.27
IPAQa
 Walking (MET) 1732 (1749) 656 (1623) −1.82 24 0.08
 Moderate (MET) 1421 (1463) 1287 (1276) −0.24 24 0.81
 Vigorous (MET) 3505 (2603) 3180 (2572) −0.32 24 0.75
 Sum (MET) 6659 (5233) 5123 (3798) −2.54 24 0.42
Accelerometera
 Step countb 102,514 (162799) 101,092 (38409) 0.063 22 0.86
 Total energy expenditurec 14,420 (2324) 14,414 (1859) 0.007 22 0.59
 Sedentary (1 - < 1,5 MET) c 3947 (578) 4358 (903) −1.363 22 0.19
 Light (1.5 - < 3 MET) c 1037 (322) 1077 (338) −.298 22 0.79
 Moderate (3–6 MET) c 660 (315) 690 (338) −.226 22 0.82
 Vigorous (>6 MET) c 152 (185) 199 (175) −.625 22 0.54
 Moderate to Vigorous 812 (481) 890 (444) −.400 22 0.69
  (≥3 MET) c
 Weartime [h/day/participant] 13.88 (1.62) 15.23 (3.83) 1.193 22 0.25
  1. Note: Trt treatment; AN anorexia nervosa (* STG: 93.3% restictive type; CG: 60% restictive type); BN bulimia nervosa; EDNOS eating disorder not otherwise classified; EDE Eating Disorder Examination (expert interview); EDI Eating Disorder Inventory; CES Commitment to Exercise Scale; CET Compulsive Exercise Test; EDS Exercise Dependence Scale; IPAQ International Physical Activity Questionnaire; GSI Global Severity Index, Symptom-Check-List 27; BDI- II Beck Depression Index; MET Metabolic Equivalent of Task
  2. a There were missing data from one patient
  3. b group-averaged sum of steps per participant across study week
  4. c group-averaged sum values per participant across study week