ALB and hypothyroidism: Our analytical results showed that PC1, PC2, and PC9 were the PCs that have a significant influence on whether LN was combined with hypothyroidism (Table 3)—that is to say, SCr, BUN, UA, TP, ALB, and anti-ribonucleoprotein (RNP) antibody might be paramount factors in treating LN with hypothyroidism.