HL	Hearing loss
YLDs	Years lived with disability
PTA	Pure tone audiometry
AC	Air conduction
BC	Bone conduction
ABG	Air–bone gap
ML	Machine learning
DL	Deep learning
AI	Artificial intelligence
HBDC	Hearing Big Data Center
DNN	Deep Neural Network
LSTM	Long Short-Term Memory
BiLSTM	Bidirectional Long Short-Term Memory
RF	Random Forest
XGB	Extreme Gradient Boosting
SMOTE	Synthetic Minority Over-sampling Technique
MSE	Mean squared error
CIs	Confidence intervals
ABR	Auditory brainstem response
OAE	Otoacoustic emissions