Table 5 Univariate and multivariate analysis of variables related to surgical compliance after PSM

Age, years

 <62

Reference

0.925

Reference

0.917

 62–77

1.01 (0.905—1.126)

0.865

1.013 (0.907—1.131)

0.817

 >77

0.987 (0.881—1.105)

0.817

0.989 (0.882—1.109)

0.848

Race

 Black

Reference

0.894

Reference

0.985

 White

1.03 (0.899—1.179)

0.675

1.012 (0.881—1.163)

0.865

 Others

1.042 (0.866—1.254)

0.664

1.014 (0.838—1.227)

0.887

Sex

 Female

Reference

Reference

 Male

0.952 (0.859—1.055)

0.346

0.951 (0.858—1.054)

0.336

Behavior recode

 Benign

Reference

0.739

Reference

0.75

 Borderline malignancy

0.916 (0.638—1.317)

0.636

0.919 (0.639—1.323)

0.651

 Malignant

0.896 (0.634—1.266)

0.532

0.896 (0.634—1.268)

0.537

Tumor size

 <20 mm

Reference

0.977

Reference

0.983

 20-62 mm

0.975 (0.794—1.196)

0.807

0.981 (0.799—1.205)

0.855

 > 62 mm

1.059 (0.661—1.697)

0.811

1.064 (0.663—1.707)

0.796

 unknown

0.977 (0.834—1.145)

0.774

0.982 (0.837—1.152)

0.824

Income

 < $50,000

Reference

0.702

Reference

0.655

 $50,000 - $59,999

1.015 (0.87—1.185)

0.846

1.043 (0.883—1.232)

0.618

 $60,000 - $70,000

0.956 (0.838—1.091)

0.507

0.994 (0.851—1.161)

0.935

 > $70,000

1.024 (0.904—1.159)

0.712

1.066 (0.914—1.242)

0.415

Rural/Urban

 Rural

Reference

Reference

 Urban

0.952 (0.844—1.074)

0.425

0.932 (0.802—1.084)

0.361