Apnea revisited: a longitudinal follow-up.
Volunteers aged 65 years and over who were previously studied underwent follow-up interviews and sleep recordings several years later (mean follow-up, 4.6 years). Modest correlations between the initial and subsequent recordings were found for apnea index, hypopnea index, and respiratory disturbance index. Sleep apnea indices did not increase over time; however, individual subjects showed great variability in amount of apnea. Periodic leg movement indices, on the other hand, significantly increased. Subjective reports indicated a significant increase in the amount of time spent awake and a significant decrease in the amount of loud snoring.
Mason
W J
WJ
Department of Psychiatry, University of California, San Diego.
Ancoli-Israel
S
S
Kripke
D F
DF
D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008991:Monitoring, Physiologic; D009043:Motor Activity; D012891:Sleep Apnea Syndromes / Q000175:diagnosis / Q000628:therapy*