APCs	Annual Percentage Changes
AAPC	Average Annual Percentage Change
ASIR	Age-Standardized Incidence Rate
ATA	American Thyroid Association
BAPC	Bayesian autoregressive age–period–cohort
BMI	Body Mass Index
CI	Confidence Interval
CIR	Crude Incidence Rate
FTC	Follicular Thyroid Cancer
GLOBOCAN	Global Cancer Observatory
IARC	International Agency for Research on Cancer
ICD-O	International Classification of Diseases for Oncology
NTCR	Northern Tunisia Cancer Registry
PTC	Papillary Thyroid Cancer
SD	Standard Deviation
TC	Thyroid Cancer
WHO	World Health Organization