Table 3 Sleep duration difference between Acute Myocardial Infarction (AMI) participants and controls
Nap and sleep duration | AMI cases | Controls | χ 2 | P-value |
|---|---|---|---|---|
Nap duration (minutes) | N = 1509 | N = 1455 | 25.42 | 0.0001 |
≤ 30 | 384 (25.5) | 489 (33.6) | ||
30-60 | 791 (52.4) | 704 (48.4) | ||
> 60 | 334 (22.1) | 262 (18.0) | ||
Sleep duration (hours) | N = 2873 | N = 2918 | 17.09 | 0.0002 |
≤ 6 | 499 (17.4) | 444 (15.2) | ||
6-8 | 1787 (62.2) | 1966 (67.4) | ||
> 8 | 587 (20.4) | 508 (17.4) |