Table 5

Univariable and multivariable regression for weight loss (N=372)

ParameterUnivariableMultivariable
OR (95% CI)P valueOR (95% CI)P value
BMI on problem list0.96 (0.64, 1.45)0.851.57 (0.90, 2.74)0.12
Age (categorical)1.31 (1.08, 1.58)0.011.30 (0.94, 1.79)0.11
BMI at index visit (kg/m²)
 Class I (reference)
 Class II0.84 (0.49, 1.46)0.550.82 (0.41, 1.65)0.58
 Class ≥III0.54 (0.33, 0.90)0.020.39 (0.19, 0.79)0.01
Race
 White (reference)
 Black1.34 (0.67, 2.67)0.411.52 (0.65, 3.56)0.34
 Other0.30 (0.06, 1.53)0.150.45 (0.07, 2.86)0.39
Ethnicity
 Non-Hispanic (reference)
 Hispanic0.53 (0.12, 2.24)0.39
ASA status
 I/II (reference)
 III/IV1.99 (1.09, 3.64)0.032.89 (1.45, 5.77)0.003
Tobacco use
 Never (reference)
 Current0.48 (1.17, 1.34)0.160.32 (0.09, 1.20)0.09
 Former1.07 (0.64, 1.80)0.791.32 (0.70, 2.48)0.39
Insurance
 Private (reference)
 Medicare1.37 (0.90, 2.08)0.151.08 (0.57, 2.02)0.82
 Medicaid1.00 (NA)NA1.00 (NA)NA
 Uninsured3.29 (0.33, 32.36)0.314.35 (0.39, 48.45)0.23
 Other1.00 (NA)NA1.00 (NA)NA
Chronic conditions (n)
 1 (reference)
 21.28 (0.47, 3.48)0.62
 3+1.64 (0.71, 3.81)0.25
Charlson Comorbidity Index1.07 (0.99, 1.16)0.110.98 (0.88, 1.09)0.72
Marital status
 Single (reference)
 Married0.79 (0.45, 1.39)0.42
 Widowed1.01 (0.44, 2.31)0.98
 Divorced0.70 (0.34, 1.46)0.34
 Other0.38 (0.03, 4.39)0.44
Distance from VUMC (miles)1.00 (1.00, 1.00)0.64
Provider
 A (reference)
 B1.39 (0.55, 3.49)0.49
 C1.22 (0.48, 3.12)0.68
 D1.23 (0.46, 3.33)0.68
 E1.22 (0.48, 3.14)0.68
 F1.00 (NA)NA
 G1.00 (0.39, 2.57)0.99
Completion of health maintenance tab1.24 (0.76, 2.01)0.402.77 (1.11, 6.89)0.03
Completion of any obesity intervention0.69 (0.46, 1.03)0.070.24 (0.09, 0.69)0.01
Referral to weight loss clinic0.51 (0.27, 0.96)0.042.22 (0.66, 7.46)0.20
Completion of weight loss clinic visit0.30 (0.12, 0.78)0.010.16 (0.03, 0.78)0.02
Referral to nutrition clinic0.90 (0.31, 2.63)0.85
Documentation of weight loss counseling0.62 (0.39, 0.97)0.041.85 (0.76, 4.49)0.18
  • ASA, American Society of Anesthesiology; BMI, body mass index; CI, confidence interval; NA, not available; OR, odds ratio; VUMC, Vanderbilt University Medical Center.