What is the clinical evidence from this study?

Study design: Observational. Population: Sleep disturbances in cardiovascular patients (n=5983). Intervention: Sleep duration. Primary outcome: Proportion of patients with atrial fibrillation (p=0.018).

What does this research mean for the field?

In cardiovascular sleep clinic patients, the prevalence of atrial fibrillation differs significantly by sleep duration, with the highest proportion observed in those with long sleep duration. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

This study aims to characterize sleep patterns and comorbid conditions among patients in a cardiovascular institute with a large Hispanic population.

May 10, 2026

0983 Descriptive Characteristics of Sleep Clinic Patients in a Cardiovascular Institute with Predominantly Hispanic Population

Key Result

In a cohort of 5,983 cardiovascular sleep clinic patients, the proportion of atrial fibrillation differed significantly by sleep duration (short: 2%, normal: 2.7%, long: 4.9%, P=0.018).

Key Points

This study aims to characterize sleep patterns and comorbid conditions among patients in a cardiovascular institute with a large Hispanic population.
Conducted a retrospective analysis of 5983 sleep clinic patients from March 2021 to June 2025.
Assessed demographic characteristics, sleep duration categorized as short, normal, and long.
Utilized Chi-square and Kruskal-Wallis tests to evaluate differences in proportions and medians.
Among 5983 patients, 55.3% were male, 46.6% were Hispanic, with a median age of 58 years.
46.2% had stage 1 or above hypertension, and 2.5% had atrial fibrillation.
The prevalence of atrial fibrillation significantly differed among sleep duration groups: (short: 2%, normal: 2.7%, long: 4.9%, P=0.018).

Study Design

Type

Observational (n=5,983)

Multicenter

Structured PICO

Population

5,983 sleep clinic patients within a cardiovascular institute (Baptist Health South Florida), median age 58, 55.3% male, 46.6% Hispanic.

Outcome

Differences in demographic characteristics and comorbidities across sleep duration groups (short <7 hours, normal 7-9 hours, long >9 hours)

In a predominantly Hispanic cardiovascular cohort, sleep duration varied by demographics, and longer sleep duration was associated with a higher prevalence of atrial fibrillation.

Main Result

p-value: p=0.018

Abstract

Abstract Introduction Sleep is fundamental for cardiometabolic health, and disruptions in sleep patterns have emerged as growing public health concerns. This study examines the demographic characteristics and comorbid burden among sleep clinic patients within a cardiovascular institute in South Florida enriched with Hispanic population. Methods We conducted a retrospective analysis of data from sleep study at Baptist Health South Florida from March 2021 to June 2025. Demographic characteristics, sleep duration, and comorbidities were assessed. Patients were categorized into three groups based on sleep duration: short ( 7 hours), normal (7-9 hours), and long (9 hours). Chi-square and Kruskal-Wallis tests were used to evaluate the differences in proportions and medians. Results A total of 5983 patients were included in our study. Among them, 55.3% were male, and 46.6% were Hispanic. Median age at presentation was 58 years, and median BMI was 31.4. Moreover, 25% of patients were current or former smokers. Median sleep duration was 7 hours, median sleep latency was 10 minutes, and median sleep irregularity was 0 hours. 2765 (46.2%) patients had stage 1 or above hypertension, and 147 (2.5%) patients had atrial fibrillation (A-Fib). There were 2990 patients in the short sleep duration group, 2808 in the normal duration group, and 185 in the long duration group. There were a greater proportion of men with shorter duration of sleep compared to women (54.3% vs 45.7%). Among Hispanics, 50.89% had short, 46.05% had normal, and 3.05% had long sleep duration. Among non-Hispanics, 49% had short, 47.7% had normal, and 3.1% had long sleep duration. The proportion of patients with A-Fib differed significantly between the three groups (short: 2%, normal: 2.7%, and long: 4.9%, P=0.018). Conclusion In our cohort of cardiovascular patients with substantial Hispanic representation, there were differences in sleep duration based on demographics and comorbid conditions. Future studies should further explore these differences to have a better understanding of sleep disturbances in this cohort. Support (if any)

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