Obstructive Sleep Apnoea (OSA), a condition characterized by a complete or partial cessation of airflow during sleep, can cause various cardiovascular disorders including hypertension. The aim of the study was to determine the prevalence of OSA in patients with hypertension. Methods: A cross-sectional prospective cohort study of 504 patients (253 males and 251 females) with hypertension was undertaken at Shri-Maharaja Hari Singh (SMHS) Hospital of Srinagar, India for a period of six months. OSA

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... was evaluated using Berlin questionnaire and Epworth Sleepiness scale. Data analysis was done using SPSS v. 20. Results: High risk of OSA was identified in 120 (23.8%) patients and the prevalence of sleepiness (Epworth Sleepiness score ˃16) was found to be 32.5% (95% CI, P˂0.001) in these patients. The mean neck circumference, waist circumference and waist-to-hip ratio for high-risk OSA group was 14.75 ± 1.338 inches, 105.90 ± 11.28 cm and 1.01 ± 0.065 respectively while for the low-risk group, these parameters were 13.97 ± 1.045 inches, 98.75 ± 10.87 cm and 0.99 ± 0.080 respectively (95% CI, P˂0.001). The mean blood pressure (BP) ≥133.52/84.37 mm Hg was recorded in patients with high risk of OSA (95% CI, P<0.05) and resistant hypertension (3.3%) was significantly associated with the risk of OSA (95% CI, P<0.05). Conclusion: In the tertiary health care