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Table 3 Clinical and socio-demographic factors associated with PCS-12 and MCS-12 by Hierarchical Multiple Linear Regression

From: The associations of body mass index with physical and mental aspects of health-related quality of life in Chinese patients with type 2 diabetes mellitus: results from a cross-sectional survey

 

PCS-12

 

MCS-12

 

Coeff.

95% CI

P-value

 

Coeff.

95% CI

P-value

Model 1 (R2= 0.216; Adj R2= 0.206)

   

Model 1 (R2= 0.035; Adj R2= 0.023)

   

Socio-demographic

   

Socio-demographic

   

Age

−0.29

(−0.37,−0.20)

<0.001*

Age

0.07

(0.01,0.13)

0.020*

Female

−3.50

(−5.39,−1.60)

<0.001*

Female

−1.60

(−2.96,−0.24)

0.021*

Educational (No formal education)

   

Educational (No formal education)

   

   Secondary or above

1.76

(−0.61,4.13)

0.145

   Secondary or above

−0.89

(−2.59,0.81)

0.304

   Primary School

−0.91

(−2.93,1.10)

0.374

   Primary School

−2.04

(−3.49,−0.59)

0.006*

Married

1.56

(3.49,−0.37)

0.114

Married

0.09

(1.48,−1.29)

0.894

Professional and Skilled

1.11

(−0.79,3.02)

0.253

Professional and Skilled

0.47

(−0.90,1.83)

0.505

Monthly Income ≥ HKD$20,000

1.14

(−1.51,3.79)

0.399

Monthly Income ≥ HKD$20,000

0.93

(−0.97,2.83)

0.338

Model 2 (R2= 0.252; Adj R2= 0.229)

   

Model 2 (R2= 0.074; Adj R2= 0.045)

   

Socio-demographic

   

Socio-demographic

   

Age

−0.30

(−0.38,−0.21)

<0.001*

Age

0.09

(0.03,0.15)

0.005*

Female

−3.48

(−5.36,−1.60)

<0.001*

Female

−1.73

(−3.08,−0.39)

0.012*

Educational (No formal education)

   

Educational (No formal education)

   

   Secondary or above

1.11

(−1.25,3.47)

0.358

   Secondary or above

−0.54

(−2.24,1.15)

0.530

   Primary School

−1.28

(−3.30,0.73)

0.211

   Primary School

−1.79

(−3.23,−0.35)

0.015*

Married

1.46

(−0.44,3.36)

0.133

Married

0.23

(−1.13,1.60)

0.736

Professional and Skilled

1.09

(−0.80,2.97)

0.259

Professional and Skilled

0.63

(−0.72,1.99)

0.361

Monthly Income ≥ HKD$20,000

1.11

(−1.50,3.72)

0.405

Monthly Income ≥ HKD$20,000

0.92

(−0.95,2.79)

0.333

Clinical

   

Clinical

   

HbA1C

0.05

(−0.58,0.68)

0.872

HbA1C

0.06

(−0.39,0.51)

0.801

BMI

−0.28

(−0.49,−0.08)

0.006*

BMI

0.15

(0.00,0.29)

0.048*

Duration of DM >5 years

−0.25

(−1.86,1.36)

0.763

Duration of DM >5 years

−0.05

(−1.21,1.10)

0.931

Oral Hypoglycaemic Drug

0.56

(−2.51,3.64)

0.719

Oral Hypoglycaemic Drug

−1.09

(−3.29,1.12)

0.334

Insulin Injection

−3.79

(−9.02,1.45)

0.156

Insulin Injection

−5.80

(−9.56,−2.05)

0.002*

DM complications

−3.04

(−5.66,−0.42)

0.023*

DM complications

0.31

(−1.57,2.19)

0.743

Hypertension

−1.55

(−4.67,1.57)

0.330

Hypertension

1.99

(−0.25,4.23)

0.082

Model 3 (R2= 0.252; Adj R2= 0.228)

   

Model 3 (R2= 0.085; Adj R2= 0.055)

   

Socio-demographic

   

Socio-demographic

   

Age

−0.30

(−0.38,−0.21)

<0.001*

Age

0.09

(0.03,0.15)

0.005*

Female

−3.56

(−5.45,−1.66)

<0.001*

Female

−1.81

(−3.17,−0.45)

0.009*

Educational (No formal education)

   

Educational (No formal education)

   

   Secondary or above

1.10

(−1.26,3.46)

0.362

   Secondary or above

−0.55

(−2.25,1.14)

0.521

   Primary School

−1.31

(−3.33,0.70)

0.201

   Primary School

−1.82

(−3.26,−0.38)

0.013*

Married

1.43

(−0.47,3.34)

0.140

Married

0.21

(−1.16,1.57)

0.765

Professional and Skilled

1.04

(−0.85,2.94)

0.279

Professional and Skilled

0.59

(−0.77,1.94)

0.396

Monthly Income ≥ HKD$20,000

1.14

(−1.47,3.74)

0.393

Monthly Income ≥ HKD$20,000

0.95

(−0.92,2.82)

0.318

Clinical

   

Clinical

   

HbA1C

0.06

(−0.57,0.68)

0.863

HbA1C

0.06

(−0.39,0.51)

0.788

BMI

−0.80

(−2.42,0.82)

0.334

BMI

−0.39

(−1.55,0.77)

0.508

BMI2

0.01

(−0.02,0.04)

0.529

BMI2

0.01

(−0.01,0.03)

0.358

Duration of DM >5 years

−0.24

(−1.85,1.37)

0.767

Duration of DM >5 years

−0.05

(−1.20,1.11)

0.937

Oral Hypoglycaemic Drugs

0.59

(−2.48,3.66)

0.706

Oral Hypoglycaemic Drugs

−1.06

(−3.26,1.14)

0.346

Insulin Injections

−3.82

(−9.05,1.42)

0.153

Insulin Injections

−5.83

(−9.59,−2.08)

0.002*

DM complications

−3.04

(−5.66,−0.42)

0.023*

DM complications

0.31

(−1.56,2.19)

0.743

Hypertension

−1.46

(−4.59,1.67)

0.361

Hypertension

2.08

(−0.16,4.33)

0.069

  1. Note: BMI body mass index, HbA1c glycated haemoglobin, HT Hypertension, MCS-12 Chinese (HK) SF-12 mental component summary, PCS-12 Chinese (HK) SF-12 physical component summary, SF-12 short-form 12, T2DM type 2 diabetes mellitus.
  2. *Significant difference (p < 0.05) on regression coefficient.