Table 1.

Baseline characteristics by serum glycerol-3-phosphate tercile among participants from the PACE cohort

G3P tercile	Overall (n = 99)	1st tercile (n = 33)	2nd tercile (n = 33)	3rd tercile (n = 33)
Age (years)	54 [44–63]	57 [50–69]	55 [44–63]	50 [39–57]
Female	38 (38%)	11 (33%)	18 (55%)	9 (27%)
Race (Black)	71 (71%)	24 (73%)	24 (73%)	23 (70%)
Body Mass Index (kg/m2)	25.8 [22.8–30.6]	25.7 [22.7–30.4]	25.6 [23.3–31.7]	27.3 [22.9–29.7]
Coronary artery disease	27 (27%)	10 (30%)	9 (27%)	8 (24%)
Cardiovascular disease	14 (14%)	4 (12%)	5 (15%)	5 (15%)
Congestive heart failure	29 (29%)	8 (24%)	11 (33%)	10 (30%)
Total corrected calcium (mg/dL)	9.0 [8.8–9.3]	9.3 [8.8–9.5]	8.9 [8.6–9.3]	8.9 [8.7–9.4]
Phosphorus (mg/dL)	5.1 [4.5–5.9]	4.5 [4.1–5.0]	5.0 [4.6–5.6]	6.0 [5.1–6.5]
Parathyroid hormone (RU/mL)	399.5 [269.6–581.3]	321.5 [247.0–465.0]	400.3 [257.1–605.8]	528.0 [349.3–724.7]
Hemoglobin (g/dL)	10.9 [9.5–11.8]	10.8 [9.8–11.7]	11.1 [10.2–11.8]	10.7 [9.4–11.5]
Albumin (g/dL)	3.8 [3.4–4.0]	3.7 [3.4–4.0]	3.8 [3.5–4.0]	3.7 [3.3–4.0]
LDL (mg/dL)	85.0 [60.2–104.2]	69.5 [47.8–106.8]	88.2 [68.3–100.8]	78.6 [64.8–98.9]
C-terminal FGF23	776.9 [218.3–1329.7]	324.0 [161.4–916.2]	402.16 [206.0–810.8]	1303.1 [884.0–1500.0]
C-reactive protein (µg/mL)	4.5 [1.7–11.4]	4.1 [1.5–13.4]	4.7 [2.1–13.3]	3.5 [1.8–9.1]
Ferritin (ng/mL)	328.9 [185.4–573.0]	374.0 [214.0–579.0]	290.5 [167.7–591.2]	302.7 [189.5–532.5]
Klotho (pg/mL)	355.7 [268.3–489.7]	355.7 [268.3–482.8]	379.0 [304.7–537.4]	338.3 [233.8–456.4]

PACE = Predictors of Arrhythmic and Cardiovascular Risk in End Stage Renal Disease

FGF-23 = Fibroblast factor-23

LDL= Low-density lipoprotein

Participant characteristics are compared between G3P categorical groups using Fisher’s exact test for categorical variables and using Kruskal-Wallis test for continuous variables. For continuous variables, values with normal distribution are as median [interquartile range].

Categorical variables are presented as absolute number (percentage).