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Table 4 Results of multivariable regression analyses in physical QoL in MG-QOL15r

From: Gender differences in quality of life among patients with myasthenia gravis in China

Physical QoL

Model 1

Model 2

Model 3

β (95% CI)

P-value

β (95% CI)

P-value

β (95% CI)

P-value

Socio-demographic variables

 Age

0.04 (− 0.06 to 0.15)

0.419

0.03 (− 0.07 to 0.14)

0.522

0.04 (− 0.07 to 0.15)

0.451

 Education

1.12 (− 0.32 to 2.56)

0.127

1.11 (− 0.33 to 2.55)

0.130

1.07 (− 0.37 to 2.50)

0.146

 Unemployment

− 4.82 (− 7.58 to − 2.07)

< 0.001

− 4.70 (− 7.48 to − 1.92)

< 0.001

− 4.61 (− 7.38 to − 1.84)

< 0.01

 Annual household income

0.00 (0.00 to 0.00)

< 0.05

0.00 (0.00 to 0.00)

< 0.05

0.00 (0.00 to 0.00)

< 0.05

Diagnosis and treatment history

 Thymectomy (0 = no; 1 = yes)

−2.70 (− 5.24 to − 0.16)

< 0.05

− 2.72 (− 5.26 to − 0.18)

< 0.05

− 2.81 (− 5.34 to − 0.27)

< 0.05

 MG exacerbations (0 = no; 1 = yes)

−7.71 (− 10.60 to − 4.82)

< 0.001

− 7.71 (− 10.60 to − 4.82)

< 0.001

− 7.71 (− 10.59 to − 4.83)

< 0.001

 Prednisone treatment (0 = never had prednisone)

  Current prednisone

−3.12 (− 6.22 to − 0.01)

< 0.05

− 3.14 (− 6.25 to − 0.03)

< 0.05

−2.99 (− 6.09 to 0.11)

0.059

  Past prednisone

−0.98 (− 4.69 to 2.72)

0.603

− 0.971 (− 4.68 to 2.74)

0.607

−0.86 (− 4.56 to 2.83)

0.646

Number of comorbid conditions

0.41 (−0.30 to 1.13)

0.252

0.40 (− 0.31 to 1.11)

0.272

1.25 (0.30 to 2.21)

< 0.05

Social support and Active lifestyle

 Tangible support

−0.00 (− 0.07 to 0.07)

0.972

− 0.00 (− 0.07 to 0.07)

0.990

−0.00 (− 0.07 to 0.07)

0.989

 Affectionate support

0.06 (−0.07 to 0.18)

0.364

0.06 (−0.06 to 0.18)

0.333

0.07 (−0.06 to 0.19)

0.284

 Positive social interaction

−0.03 (− 0.14 to 0.08)

0.609

− 0.03 (− 0.15 to 0.08)

0.559

−0.03 (− 0.15 to 0.08)

0.549

 Emotional/information support

0.02 (−0.08 to 0.11)

0.718

0.02 (−0.07 to 0.11)

0.664

0.02 (−0.08 to 0.11)

0.753

 Active lifestyle

0.27 (0.16 to 0.39)

< 0.001

0.27 (0.16 to 0.39)

< 0.001

0.27 (0.16 to 0.39)

< 0.001

MG-ADL

−4.39 (− 4.73 to − 4.05)

< 0.001

−4.38 (− 4.73 to − 4.04)

< 0.001

−4.36 (− 4.70 to − 4.02)

< 0.001

Gender (0 = male; 1 = female)

  

− 0.93 (− 3.73 to 1.87)

0.516

0.93 (−2.19 to 4.06)

0.557

Gender × Comorbiditiesa

    

−1.78 (−3.12 to −0.44)

< 0.01

Adjusted R-squared

0.6364

0.6362

0.6389

  1. Abbreviation: CI confidence interval
  2. aNumber of comorbid conditions