borderline significantP = 0.041
Within the group of women with silicone implants and CTD (Group 1), between those women with paraproteins and those women without paraproteins there were only borderline significant differences or no significant differences (Mann–Whitney U test) in age (55.6 years versus 49.3 years, P = 0.041), in duration of CTD (10.4 versus 6.4 years, P = 0.051), in implant duration (10.2 years versus 12.5 years, P = 0.267), and in duration of silicone exposure (16.1 years versus 15.4 years, P = 0.783).