Apnea analysis system and method

An apnea analysis method comprising:

• receiving, using an apnea analysis system, a photoplethysmographic (PPG) signal indicative of a cardiac status of an individual from a PPG sensor;
• receiving, using the apnea analysis system, a breath signal indicative of a breathing status of the individual from a breath sensor;
• identifying, using the apnea analysis system, a respiratory component of the PPG signal indicative of a respiration effort or a respiration rate;
• calculating, using the apnea analysis system, an oxygen saturation value indicative of oxygen saturation of the individual based on the PPG signal;
• identifying, using the apnea analysis system, a presence of apnea based on at least one of the breath signal, the respiratory component of the PPG signal, and the oxygen saturation value;
• differentiating, using the apnea analysis system, between obstructive apnea and central apnea, based on the breath signal, the respiratory component of the PPG signal, and the oxygen saturation value;
• and
• providing, using the apnea analysis system, an indication based on the differentiating.