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Table 3 Parameter estimation of the generalized estimation equation for the risk perception of WRMDs

From: Effectiveness of a multidimensional intervention program in improving occupational musculoskeletal disorders among intensive care unit nurses: a cluster-controlled trial with follow-up at 3 and 6 months

Variable

Single-factor analysis

Multiple-factor analysis

ORa

Upper

Lower

p-value

ORa

Lower

Upper

p-value

Age

0.990

0.970

1.011

0.347

    

Sex

 Male

0.987

0.831

1.172

0.879

    

 Female

1

       

BMIb

  < 18.5

0.941

0.721

1.227

0.652

    

 18.5–23.9

0.966

0.760

1.228

0.780

    

 24.0–27.9

0.957

0.730

1.255

0.752

    

  ≥ 28

1

       

Marital Status

 Single

1.125

0.983

1.287

0.087

    

 Married

1

       

ICUc employment

        

 1–2 years

1.007

0.770

1.317

0.960

    

 3–5 years

1.028

0.853

1.240

0.769

    

 5–10 years

0.945

0.755

1.151

0.572

    

  > 10 years

1

       

Job title

 Nurse

1.204

0.996

1.454

0.054

    

 Senior nurse

1.076

0.901

1.286

0.416

    

 Supervisor nurse

1

       

Education

 Junior college

1.010

0.750

1.362

0.946

    

 Bachelor

1.143

0.946

1.380

0.167

    

 Master/Doctoral

1

       

Group

 Group = (Control group)

    

0.517

0.424

1.629

< 0.001

 Group = (Intervention group)

    

1

   

Time

 Time = 0(Baseline)

    

0.441

0.372

0.523

< 0.001

 Time = 1 (3 months)

    

1.076

0.924

1.252

0.346

 Time = (6 months)

    

1

   

Group × time

 [Group = 0] × [Time = 0]

    

1.740

1.345

2.252

< 0.001

 [Group = 0] × [Time = 1]

    

1.305

1.038

1.640

0.023

 [Group = 0] × [Time = 2]

    

1

   

 [Group = 1] × [Time = 0]

    

1

   

 [Group = 1] × [Time = 1]

    

1

   

 [Group = 1] × [Time = 2]

    

1

   
  1. aOR Odds ratio
  2. bBMI Body Mass Index
  3. cICU Intensive care unit
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