Table 1

Demographic characteristics of the study population, n = 1205

CharacteristicGroup; no. (%)*
AttritionComplianceTotal
Patients516 (42.8)689 (57.2)1205 (100)
Age, mean yr42.243.042.6
Sex
 Female545 (57.6)401 (42.4)946 (78.5)
 Male115 (44.4)144 (55.6)259 (21.5)
Weight, mean lb135.5146.5141.8
Initial BMI, mean48.452.350.6
Type of clinic
 Surgical38 (11.9)280 (88.1)318 (26.4)
 Medical478 (53.9)409 (46.1)887 (73.6)
Smoking history347 (44.2)438 (55.8)785 (65.1)
Active smoking61 (47.3)68 (52.7)129 (10.7)
MSK disorder225 (36.3)394 (63.7)619 (51.4)
Mental illness245 (44.1)310 (55.9)555 (46.1)
 Depression210 (43.7)271 (56.3)481 (39.9)
 Bipolar disorder19 (61.3)12 (38.7)31 (2.6)
 Eating disorder11 (47.8)12 (52.2)23 (1.9)
 Anxiety disorder17 (31.5)37 (68.5)54 (4.5)
 Anxiety disorder with panic attacks24 (30.0)56 (70.0)80 (6.6)
 On MH medication81 (34.8)152 (65.2)233 (17.7)
 On antidepressants68 (31.9)145 (68.1)213 (17.7)
 On neuroleptics8 (44.4)10 (55.6)18 (1.5)
  • BMI = body mass index; MH = mental health; MSK = musculoskeletal.

  • * Unless otherwise indicated.

  • Includes selective serotonin reuptake inhibitors and antipsychotics.