In univariate logistic regression analysis, the variables that were associated with an increased risk of PTH < 150 pg/mL included older age (OR = 0.968, P = 0.002), diabetes mellitus (OR = 0.367, P = 0.020), high hemoglobin (OR = 0.981, P = 0.003), eGFR (OR = 0.925, P = 0.014), calcium (OR = 0.040, P = 0.000), triglyceride (OR = 0.718, P = 0.029), levels, low phosphate (OR = 3.586, P = 0.000), alkaline phosphatase (OR = 1.017 P = 0.003). Here, PTH is linked to diabetes mellitus.