Journal of Obesity / 2012 / Article / Tab 1

Research Article

Understanding the Determinants of Weight-Related Quality of Life among Bariatric Surgery Candidates

Table 1

Characteristics of the study population by gender.

Men ( 𝑛 = 1 7 )Women ( 𝑛 = 2 5 )
MeanSDMeanSD

Physiological variables
Age (years)438.93810.2
Weight (kg)15935.5136*19.0
Height (m)1.780.071.64*0.07
BMI (kg/m2)509.8516.7
Hip (cm)14019.214712.7
Waist (cm)14818.0135*14.5
Waist-to-hip ratio1.060.070.92*0.08
VO2peak (mL/kg/min)(fair = 38 for males, 31 for females) 16.2(4.9)14.4(2.9)
VO2peak (L/min)2.580.781.96*0.39
VO2 at rest (L/min)0.420.100.33*0.06
PaO2 at rest (mmHg) [99] 8311.391*9.8

Functional status
6MWT (M)429110.541483.3

SF-36 (0–100)
Physical functioning [86] 3227.84324.2
Role physical [82] 4941.04741.9
Bodily pain [76] 5228.44523.9
GHP [77] 4313.84119.5
Vitality [66] 3913.13616.1
Social functioning [86] 5826.15729.0
Role emotional [84] 5944.96440.4
MH [78] 6317.56019.4
PCS [51] 3511.3339.8
MCS [52] 449.8449.9

Weight-related quality of life (0–100)
IWQOL overall5524.740*21.3
Public distress5637.337*20.5
Physical function4525.03616.1
Self-esteem4929.124*25.6
Sexual life4621.03528.7
Work4522.93622.6

Abbreviations: BMI, body mass index; 6MWT, 6-minute walk test; MCS, mental component summary; PCS, physical component summary; MHI, Mental Health Index; GHP, general health perception; IWQOL, impact of weight on quality of life—lite. The parentheses in italic are norms for the SF-36 [36], and for PaO2 [42]. For VO2peak (mL/kg/min) the classification of “fair” is the 40th percentile value for age and gender from the American College of Sports Medicine [43]. Statistical difference between men and women, *P value <0.05, **P value <0.0001.