Skip to main content

Advertisement

Table 1 Serum paraproteins in the case–control study of 74 age-matched and connective tissue disease (CTD) diagnosis-matched women with and without silicone implants

From: Serum proteins and paraproteins in women with silicone implants and connective tissue disease: a case–control study

  Silicone implant
  Yes (Group 1) No (Group 2)
Age (years)a 49.9 ± 8.7 49.8 ± 8.4
Number of women with paraprotein band(s)/totalb 7/74 (9.5%) 4/74 (5.4%)
Number of women with paraprotein band(s) according to primary CTD diagnosis
   Unexplained polyarthritis 0/1 (0%) 0/1 (0%)
   Systemic sclerosis 1/10 (10%) 0/10 (0%)
   Systemic lupus erythematosus 0/1 (0%) 0/0 (0%)
   Polymyositis/dermatomyositis 1/13 (4%) 2/14 (4%)
   Undifferentiated CTD 4/39 (13%) 2/39 (5%)
   Fibromyalgia syndrome 1/10 (0%) 0/10 (10%)
Type of paraprotein band(s)c   
   IgG(κ) 4 5
   IgG(λ) 1 1
   IgM(κ) 0 0
   IgM(λ) 2 1
  1. aPresented as the mean ± standard deviation, no significant difference by paired t test (P = 0.82). bNo significant differences between Groups 1 and 2 using the McNemar test (P = 0.55). cOne woman with dermatomyositis had two IgG(κ) and one IgG(λ) bands, whereas a patient with polymyositis had both IgG(κ) and IgM(λ) bands.