From: Prevalence of insomnia and its impact on daily function amongst Malaysian primary care patients
Non-insomniacs n=819 n (%) | Level 1 insomnia n=798 n (%) | Level 2 insomnia n=630 n (%) | Level 3 insomnia n=587 n (%) | |
---|---|---|---|---|
Cigarette smoking | 73 (17.6) | 208 (26.1)* | 153 (24.3)* | 145 (24.7)* |
Consume caffeinated drinks | 304 (73.3) | 605 (76.0) | 483 (76.9) | 454 (77.5) |
Number of cups caffeinated drinks per day | ||||
1-2 | 248 (81.0) | 428 (70.7) | 343 (71.0) | 318 (69.6) |
3-5 | 56 (18.3) | 143 (23.6) | 112 (23.3) | 110 (24.2) |
>5 | 2 (0.7) | 34 (5.6)* | 28 (5.8)* | 27 (5.9)* |
Consume coffee 1 h before Bedtime | 28 (7.1) | 93 (12.4)* | 77 (13.0)* | 74 (13.4)* |
Alcohol | 18 (4.4) | 45 (5.7) | 38 (6.1) | 34 (5.8) |
Sedative use | 5 (1.2) | 67 (8.4)* | 57 (9.1)* | 56 (9.5)* |