GC and insomnia: After controlling for race, chemotherapy history, non-steroidal anti-inflammatory drug use, age, and body mass index, the coexistence of arthralgia, fatigue, and insomnia was associated with elevated C-reactive protein (CRP) (β = 93.1; 95 % confidence interval (CI): 25.1–161.1; p = 0.008), eotaxin (β = 79.9; 95 % CI: 32.5–127.2; p = 0.001), monocyte chemoattractant protein (MCP)-1 (β = 151.2; 95 % CI: 32.7–269.8; p = 0.013), and vitamin D–binding protein (VDBP) (β = 19,422; 95 % CI: 5500.5–33,344; p = 0.006).