Journal of Obesity

Research Article

Physical Activity and Quality of Life in Severely Obese Adults during a Two-Year Lifestyle Intervention Programme

Table 5

Reg. coeff. with 95% CI and stand. coeff. () for simple and multiple^a linear associations between change in physical activity as the independent variable and change in quality of life outcomes as the dependent variable.

Change in PCS^b

Change in MCS^b

Change in OP^c

Change in life satisfaction^d

Reg. coeff. (95% CI)

Gender: male

Crude

0.31 (−2.66, 3.26)

.02

.838

2.10 (−2.63, 6.84)

.09

.380

−0.68 (−9.28, 7.93)

−.02

.876

−0.13 (−0.76, 0.51)

−.04

.691

Adj.

−0.65 (−3.39, 1.96)

−.05

.635

1.77 (−2.81, 6.73)

.07

.472

−1.40 (−11.89, 8.32)

−.03

.783

−0.22 (−0.97, 0.49)

−.07

.530

Age

Crude

0.09 (−0.04, 0.23)

.13

.179

0.05 (−0.17, 0.27)

.04

.658

−0.18 (−0.58, 0.22)

−.09

.375

0.01 (−0.02, 0.04)

.06

.555

Adj.

0.04 (−0.13, 0.20)

.06

.650

0.08 (−0.18, 0.34)

.07

.537

−0.21 (−0.71, 0.24)

−.10

.363

0.003 (−0.027, 0.031)

.02

.852

Change of BMI

Crude

−0.92 (−1.56, −0.29)

−.28

.005

−1.36 (−2.41, −0.32)

−.26

.011

1.82 (−0.09, 3.73)

.19

.061

−0.18 (−0.31, −0.04)

−.26

.011

Adj.

−0.34 (−1.32, 0.38)

−.11

.434

−0.03 (−1.44, 1.33)

−.01

.960

−0.24 (−3.03, 2.80)

−.03

.850

−.003 (−0.181, 0.142)

−.01

.974

Change of physical activity^e

Crude

0.011 (0.005, 0.017)

.39

<.001

0.028 (0.017, 0.039)

.50

<.001

−0.027 (−0.048, −0.007)

−.29

.011

0.003 (0.001, 0.004)

.39

.001

Adj.

0.010 (0.001, 0.019)

.35

.033

0.028 (0.014, 0.044)

.51

.001

−0.029 (−0.058, −0.008)

−.31

.018

0.003 (0.001, 0.004)

.39

.004

Adj. R²

0.13

0.22

0.04

0.11

All variables in the first column.
^bPhysical component summary (PCS) and mental component summary (MCS) of the Medical Outcomes Study Short-Form 36 Health Survey (SF-36). Continuous scales. Higher scores represent better quality of life.
^cObesity-Related Problems scale. Continuous scale. Higher scores represent more obesity-related problems.
^dContinuous scale. Higher scores represent better life satisfaction.
^eAccelerometer assessed.
Regression coefficients: reg. coeff.; confidence interval: CI; standardized coefficients: stand. coeff.; adjusted: adj.; body mass index: BMI.
Number of observations: change in PCS, 73; change in MCS, 73; change in OP, 72; change in life satisfaction, 71.
Significant values (≤.05) in bold.