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Table 3 Results of generalized estimating equation modeling for the outcome measures

From: Quasi-experimental design for using an interactive social media intervention program to improve truck drivers’ health beliefs and eating behaviors

Parameter

Self-perceived health status

Self-perceived susceptibility

Self-perceived severity

Perceived barriers

Cues to action

Self-efficacy

Healthy eating score

Beta

SE

p

Beta

SE

p

Beta

SE

p

Beta

SE

p

Beta

SE

p

Beta

SE

p

Beta

SE

p

Time

 1 = Post-test / 0 = Pretest

-0.111

0.038

0.003

0.041

0.025

0.102

-0.017

0.026

0.518

-0.028

0.039

0.474

-0.063

0.048

0.184

-0.067

0.077

0.384

0.016

0.025

0.518

Group

 1 = Intervention / 0 = Control b

-0.143

0.093

0.123

0.019

0.098

0.844

0.030

0.107

0.778

0.052

0.052

0.311

-0.001

0.082

0.992

0.156

0.096

0.104

-0.027

0.025

0.287

Time * Group

 1 = Post-test / 0 = Pretest *

1 = Intervention / 0 = Control c

0.046

0.064

0.471

0.095

0.060

0.114

0.165

0.089

0.063

-0.282

0.064

 < 0.001

0.260

0.124

0.036

0.368

0.113

0.001

0.172

0.037

 < 0.001

Sociodemographic factors

 Age

0.003

0.0097

0.786

-0.005

0.010

0.618

0.020

0.010

0.052

0.012

0.005

0.029

0.007

0.007

0.348

0.014

0.007

0.038

-0.003

0.002

0.138

 Married

  2 = Unmarried / 0 = Married

-0.119

0.164

0.469

0.106

0.158

0.502

0.113

0.166

0.498

0.007

0.073

0.923

0.030

0.091

0.741

0.031

0.126

0.806

-0.014

0.034

0.674

  1 = Divorced /  0 = Married

-0.223

0.221

0.313

0.346

0.202

0.087

0.327

0.163

0.044

0.105

0.097

0.282

0.059

0.125

0.636

0.059

0.125

0.636

-0.060

0.422

0.156

 Education

  2 = Middle/  0 = Low

0.234

0.103

0.023

-0.106

1.084

0.328

0.111

0.131

0.397

-0.017

0.056

0.761

0.203

0.084

0.015

0.203

0.084

0.015

0.011

0.023

0.615

  1 = High/  0 = Low

0.364

0.138

0.009

-0.337

0.142

0.017

-0.086

0.143

0.548

0.075

0.088

0.397

0.230

0.115

0.046

0.230

0.084

0.046

0.084

0.039

0.031

 BMI

0.009

0.014

0.541

-0.021

0.013

0.111

-0.003

0.014

0.814

0.002

0.007

0.737

0.005

0.010

0.603

0.005

0.010

0.603

0.000

0.003

0.986

 Metabolic syndrome

  1 = Yes / 0 = No

0.023

0.098

0.817

0.008

0.094

0.939

0.043

0.108

0.692

0.072

0.044

0.102

0.084

0.069

0.280

0.084

0.070

0.228

0.008

0.021

0.692

  1. Reference group (time): pretest
  2. Reference group (group): control group
  3. Reference group (group × time): control group in the pretest
  4. SE Standard error
  5. BMI Body mass index