ADAM	Androgen Deficiency in the Aging Male
AMS	Aging Males’ Symptoms
ART	assisted reproductive technology
ASRM	American Society for Reproductive Medicine
AUA	American Urological Association
CI	confidence interval
EAU	European Association of Urology
FSH	follicle-stimulating hormone
GIP	glucose-dependent insulinotropic polypeptide
GLP-1	glucagon-like peptide-1
GRADE	Grading of Recommendations Assessment, Development and Evaluation
HbA1c	glycated hemoglobin
hCG	human chorionic gonadotropin
HOMA	homeostasis model assessment
ICSI	intracytoplasmic sperm injection
IIEF-5	five-item International Index of Erectile Function
LH	luteinizing hormone
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analyses
ROBINS-I	Risk Of Bias In Non-randomized Studies of Interventions
SANRA	Scale for the Assessment of Narrative Review Articles
SD	standard deviation
SERM	selective estrogen receptor modulator
SGLT2	sodium–glucose cotransporter-2
SHBG	sex hormone-binding globulin
SHIM	Sexual Health Inventory for Men
STROBE	Strengthening the Reporting of Observational Studies in Epidemiology
T2DM	type 2 diabetes mellitus