From: Risk factors of sleep paralysis in a population of Polish students
The number of SP episodes: | Participants reported mental disorder | Participants reported somatic disease | Participants reported two or more health problem | ||||||
Any mental disorders | Anxiety | Mood | Allergies | Asthma | Cardiovascular | Hematologic | Two health problem | Three or more health problem | |
in the last month | -frequency of alcohol consumption per month, R = 0.28 - Average sleep duration in hours per day, R = −0.32 |  |  |  | -number of coffee cups per day, R = 0.5 |  | -BMI, R = 0.7 | number of coffee cups per day, R = 0.31 |  |
in the last year | - number of hours of physical activity per week, R = 0.47 | - average sleep duration in hours per day, R = −0.51 | - number of hours of physical activity per week, R = 0.51 | -age, R = −0.33 | -number of coffee cups per day, R = 0.49 - average sleep duration in hours per day, R = −0.42 | -age, R = −0.63 | - average sleep duration in hours per day, R = −0.72 |  | -age, R = −0.42 |
throughout the lifetime | - number of hours of physical activity per week, R = 0.43 | - average sleep duration in hours per day, R = −0.47 - number of hours of physical activity per week, R = 0.43 | - number of hours of physical activity per week, R = 0.48 |  |  |  |  | -number of coffee cups per day, R = 0.4 -number of hours of physical activity per week, R = 0.38 |  |
 | Participants reporting regularly taking medication | ||||||||
Number of SP episodes: | Any medications | thyroid hormones | hormonal contraception | antidepressants | antiallergic and anti-asthmatic | ||||
in the last month | - average sleep duration in hours per day, R = −0.33 |  |  |  |  | ||||
in the last year | - number of hours of physical activity per week, R = 0.46 |  | -BMI, R = 0.34 -number of coffee cups per day, R = 0.36 | -average sleep duration in hours per day, R = 0.39 | -age, R = 0.41 | ||||
throughout the lifetime | - number of hours of physical activity per week, R = 0.35 | - number of cigarettes smoked per day, R = 0.34 - number of pack-years, R = 0.34 |  | - average sleep duration in hours per day, R = 0.36 | -age, R = 0.42 |