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Table 4 Multivariate logistic regression of factors for autoimmune comorbidities in individuals with metastatic melanoma

From: Autoimmune comorbidities in patients with metastatic melanoma: a retrospective analysis of us claims data

  Odds ratio 95% confidence interval P-value
  Lower Upper  
Age group (Reference: 55–64)
 18–34 0.83 0.61 1.14 0.25
 35–54 0.90 0.79 1.02 0.09
 65–74 1.09 0.87 1.37 0.46
  ≥ 75 0.92 0.72 1.17 0.48
Femalea (Reference: Male) 1.42 1.30 1.55 < 0.001
Health Insurance Plan (Reference: Others)     
 Comprehensive 0.84 0.70 1.00 0.06
 HMOa 0.75 0.62 0.90 0.01
 POS 0.92 0.72 1.17 0.51
 PPO 0.98 0.85 1.14 0.83
Medicare beneficiaries (Reference: No Medicare) 0.94 0.75 1.19 0.62
Regions (Reference: West)
 North East 0.96 0.83 1.11 0.57
 North Centrala 0.88 0.78 0.99 0.04
 Southa 0.86 0.76 0.96 0.01
Metastasis site at index (Reference: Skin)
 Brain 1.22 0.95 1.57 0.12
 Bonea 1.77 1.37 2.29 < 0.001
 Liver 1.30 1.00 1.71 0.05
 Gastrointestinala 1.64 1.19 2.27 0.01
 Lung 1.19 0.91 1.55 0.20
Charlson Category (Reference: 0)
 1a 1.88 1.69 2.09 < 0.001
 ≥ 2a 3.37 2.99 3.80 < 0.001
  1. HMO health maintenance organization, POS point of service plan, PPO preferred provider organization
  2. aIndicates statistically significant at 5%