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Table 4 Linear regression model of year-4 mental component score among males (n = 1542)

From: The effect of subjective social status on health-related quality of life decline in urban Chinese older adults: a four-year longitudinal study from Hong Kong

 

Bivariable model (MCS baseline)

SSS-Society model

SSS-Community model

Factors

B Coeff (95% CI)

p-value

B Coeff (95% CI)

Std. Coeff

p-value

B Coeff (95% CI)

Std. Coeff

p-value

SSS-Society

0.27 (0.10, 0.43)

0.002

0.29 (0.12, 0.47)

0.08

0.001

SSS-Community

0.13 (− 0.01, 0.27)

0.068

0.12 (− 0.02, 0.26)

0.04

0.092

Baseline MCS

0.32 (0.27, 0.36)

< 0.001

0.31 (0.27, 0.36)

0.32

< 0.001

0.29 (0.24, 0.33)

0.30

< 0.001

Demographics

 Age

0.04 (− 0.03, 0.10)

0.297

 Education

 

0.418

  

0.310

  

0.414

  No schooling

1.00

 

1.00

  

1.00

  

  At least some primary school

0.86 (− 0.59, 2.31)

 

0.84 (− 0.60, 2.29)

0.07

 

0.51 (− 0.92, 1.95)

0.04

 

  At least some secondary school

0.46 (− 1.05, 1.97)

 

0.24 (− 1.27, 1.75)

0.02

 

−0.06 (− 1.56, 1.44)

− 0.00

 

  At least some university/ college

1.04 (− 0.57, 2.64)

 

0.69 (−0.92, 2.30)

0.04

 

0.49 (− 1.11, 2.10)

0.03

 

 Currently married

−0.94 (− 1.94, 0.05)

0.064

− 0.76 (− 1.75, 0.24)

−0.04

0.136

−0.88 (− 1.86, 0.14)

−0.04

0.091

Well-being factors

 PASE Score (IQR)

0.21 (−0.48, 0.91)

0.550

 Currently living alone

−1.16 (− 2.42, 0.10)

0.071

−0.32 (− 1.85, 1.21)

−0.01

0.681

−0.18 (− 1.70, 1.35)

−0.01

0.821

Medical history

 Diabetes

−0.18 (− 1.05, 0.70)

0.695

 Hyperthyroidism

− 1.99 (−4.49, 0.51)

0.118

− 1.06 (−3.76, 1.63)

−0.02

0.438

−1.14 (− 3.84,1.56)

− 0.02

0.406

 Hypothyroidism

−4.75 (−8.19, − 1.31)

0.007

− 4.85 (− 8.27, − 1.43)

−0.07

0.005

−4.41 (−7.90, − 0.92)

−0.06

0.013

 Osteoporosis

−1.92 (− 3.74, − 0.11)

0.038

−1.30 (− 3.13, 0.53)

− 0.03

0.162

−1.49 (− 3.31, 0.34)

−0.04

0.110

 History of stroke

− 2.22 (− 3.68, − 0.75)

0.003

− 2.23 (− 3.68, − 0.78)

−0.07

0.003

−1.84 (−3.28, − 0.40)

−0.06

0.012

 Hypertension

0.00 (−0.61, 0.62)

0.996

 CVD conditions

−0.18 (− 0.98, 0.62)

0.659

 COPD

−0.51 (− 1.52, 0.51)

0.328

 Current alcohol use

0.36 (− 0.35, 1.06)

0.317

 Ever smoked

0.09 (−0.54, 0.71)

0.784

 History of starvation

−0.56 (− 1.18, 0.06)

0.076

− 0.55 (− 1.17, 0.08)

−0.04

0.087

−0.69 (−1.31, − 0.06)

−0.05

0.031

 BMI > = 30

0.67 (− 1.46, 2.80)

0.536

 Walking speed (m/sec)

0.24 (− 1.14, 1.62)

0.736

  1. SSS Subjective social status, MCS Mental Component Score, PASE Physical Activity Scale for Elderly, IQR Interquartile range, CVD Cardiovascular diseases, COPD Chronic obstructive pulmonary disease, BMI Body mass index. Values in bold represent those variables retained in the final model. Values not bolded but shown in the final model column represent their value before being removed from the model
  2. SSS-Society: VIF range 1.001 to 1.074, R square 0.121
  3. SSS-Community: VIF range 1.004 to 1.049, R square 0.105