Table 1. Biomarker types according to the number of curated biomarkers.

Biomarkers	Publications	Type	Example biomarkers	Largest normalized effect size
165	310	Blood	Apolipoprotein A-1, Mean corpuscular volume, Lymphocyte percentage	8.33
30	35	Composite	Body mass index and leg extensor strength, Lipid accumulation product, Hypothyroidism	7.93
10	14	Computed tomography	Bone density, Thigh intramuscular fat, Skeletal muscle density	12.28
4	4	Echocardiography	Interventricular septum thickness, Left ventricular ejection fraction, Left ventricular hypertrophy	6
61	45	Electrocardiography	Low frequency power of heart rate variability, QRS Transition, counterclockwise rotation, QTc dispersion minimum value	14.29
79	3	Epigenetics	cg14575484, cg16197857, cg27635330	2.45
10	25	Exercise test	Exercise capacity, Strength, Cardiorespiratory fitness	6.67
22	24	Other	Relative abdominal fat, Basal metabolic rate, Interday rhythm stability	8.4
47	94	Physical parameter	Arm circumference, Lean mass index, Body mass index	16.9
10	58	Sphygmomanometry	Blood pressure, Pulse pressure, Mean arterial pressure	4.2
11	14	Spirometry	Peak expiratory flow, Forced expiratory volume, Forced vital capacity	4.59
13	12	Ultrasonography	QUI stiffness, Bone mineral density, Broadband ultrasound attenuation	4.89
12	23	Urine	Creatinine excretion, Proteinuria, Sodium (24-hour excreted)	11