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Table 3 Multivariable linear regression analysis of the association of alcohol intake, sociodemographic, and health related factors with waist circumference (cm) based on Healthy Ireland Survey 2017 data

From: The association between alcohol intake and obesity in a sample of the Irish adult population, a cross-sectional study

Variable

Model 1

Model 2

Model 3

Model 4*

 

β (95% CI)

p value

β (95% CI)

p value

β (95% CI)

p value

β (95% CI)

p value

AUDIT-C1 score

 Score < 5

0.00

 

0.00

 

0.00

 

0.00

 

 Score ≥ 5

2.89 (1.25, 4.53)

0.001

1.34 (0.47, 2.20)

0.002

1.93 (0.87, 2.98)

0.001

1.72 (0.25, 3.19)

0.022

Age group (years)

  < 45

0.00

 

0.00

 

0.00

 

0.00

 

 45 and older

4.92 (3.2, 6.22)

 < 0.001

4.78 (3.92, 5.63)

 < 0.001

4.06 (3.04, 5.08)

 < 0.001

5.04 (3.92, 6.16)

 < 0.001

Sex

 Female

0.00

 

0.00

 

0.00

 

0.00

 

 Male

8.12 (6.80, 9.44)

 < 0.001

8.06 (7.21, 8.92)

 < 0.001

8.31 (7.27, 9.36)

 < 0.001

8.02 (6.88, 9.16)

 < 0.001

Marital status

 Single2

0.00

 

0.00

     

 Married3

1.28 (0.00, 2.56)

0.050

0.82(-0.01, 1.65)

0.054

    

Educational status

 Low/medium

0.00

 

0.00

 

0.00

 

0.00

 

 High

-1.45(-2.82, -0.08)

0.039

-2.39(-3.30, -1.48)

 < 0.001

-1.70(-2.74, -0.65)

0.001

-2.43(-3.57, -1.30)

 < 0.001

Urban/rural residency

 Rural

0.00

 

0.00

 

0.00

 

0.00

 

 Urban

-0.56(-1.85, 0.73)

0.394

-0.86(-1.68, -0.03)

0.042

-1.09(-2.11, -0.08)

0.035

-0.32 (1.44, 0.79)

0.569

Employment status

 Unemployed4

0.00

 

0.00

     

 Employed

1.87 (2.91, 0.84)

 < 0.001

-0.02(-1.93, 1.89)

0.986

    

Full medical card

 No

0.00

 

0.00

 

0.00

   

 Yes

1.94 (0.10, 3.79)

0.039

2.38 (1.40, 3.37)

 < 0.001

1.20(-0.15, 2.54)

0.081

  

Private HI5

 No

0.00

 

0.00

     

 Yes

0.48(-0.95, 1.90)

0.512

0.02(-0.92, 0.96)

0.964

    

General health

 Good/ very good

0.00

   

0.00

 

0.00

 

 Fair/Bad

2.38(-0.29, 5.06)

0.081

  

3.23 (1.17, 5.28)

0.001

2.18 (0.55, 3.81)

0.009

Past medical history

 No

0.00

   

0.00

   

 Yes

0.94(-0.72, 2.60)

0.266

  

0.66(- 0.62, 1.95)

0.311

  

Smoking status

 No

0.00

   

0.00

 

0.00

 

 Yes6

-1.77(-3.24, -0.30)

0.018

  

-2.16(-3.37, -0.94)

0.001

-2.47(-3.73, -1.22)

 < 0.001

Active transportation

 No

0.00

   

0.00

   

 Yes7

0.00(-1.74, 1.74)

0.999

  

-0.75(-2.16, 0.67)

0.301

  

Fruit consumption

  < 1 time a day

0.00

   

0.00

 

0.00

 

  ≥ 1 time a day

1.14(-0.14, 2.43)

0.820

  

1.68 (0.62, 2.74)

0.002

1.00(-0.12, 2.12)

0.079

Alcohol consumption

  < 3 times a week

0.00

     

0.00

 

  ≥ 3 times a week

-1.08(-2.63, 0.47)

0.171

    

-0.41(-1.69,0.87)

0.533

Binge drinking8

  < 1 time a week

0.00

     

0.00

 

  ≥ 1 time per week

1.18 (-0.21, 2.57)

0.096

    

1.71 (0.50, 2.91)

0.006

  1. Model 1: Adjusted for all variables, R2 = 0.207
  2. Model 2: Adjusted for sociodemographic variables, adjusted R2 = 0.158
  3. Model 3: Adjusted for significant sociodemographic variables in Model 2 and health-related variables, adjusted R2 = 0.184
  4. Model 4: Adjusted significant sociodemographic and health-related variables in Model 3 and alcohol related variables, adjusted R2 = 0.195
  5. * Fully adjusted model; 1 Alcohol Use Disorder Identification Test—Consumption; 2 Includes separated, divorced, widowed; 3 includes civil partnership; 4 includes unemployed looking for a job, retired, and pupil/student; 5 health insurance; 6 includes occasional and daily smoking; 7 transportation by foot or bicycle; 8 six or more standard units per occasion; Variables with p values < 0.05 were included in the subsequent model. Reference group β = 0.00; level of significance p < 0.05