The Epidemiology of Sleep Quality and Consumption of Stimulant Beverages among Patagonian Chilean College Students

Vélez, Juan Carlos; Souza, Aline Costa; Traslaviña, Samantha; Barbosa, Clarita; Wosu, Adaeze C.; Andrade, Asterio; Frye, Megan; Fitzpatrick, Annette L.; Gelaye, Bizu; Williams, Michelle A.

doi:10.1155/2013/910104

Cited by 47 publications

(53 citation statements)

References 24 publications

(29 reference statements)

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“…The study also revealed that 3 out of 10 respondents consumed energy drinks, which is found to be strongly associated with sleep quality. This is in general agreement with prior studies (Aslam et al, 2013;Lemma et al, 2012;Reissig, Strain, & Griffiths, 2009;Velez et al, 2013). Besides caffeine, which is the main stimulant of energy drink, it may also contain other stimulating ingredients.…”

Section: Consumption Of Caffeine Cigarette Smoking and Sleepsupporting

confidence: 93%

“…Present in varying amounts in coffee, energy drinks, tea, soft drinks and even chocolate, it is commonly consumed by young adults. It was found that consumers of any stimulant beverage were 80% more likely to have poor sleep quality than nonconsumers (Velez et al, 2013). Drake et al (Drake, Roehrs, Shambroom, & Roth, 2013) showed that consuming caffeine 0,3 or even 6 hours before bedtime significantly disrupts sleep.…”

Section: Annals Of Psychophysiology Volume 3 October 2016 ©Advance Ementioning

confidence: 99%

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Determinants of Sleep Quality among Undergraduate Students of Universities of Karachi

Khan

Haroon

Murtaza

et al. 2016

Ann. psychophysiol.

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Background: The goal of this study is to evaluate the extent to which caffeine consumption, cigarette smoking, technology use, and academics are associated with the sleeping habits of university students. Methods: 643 undergraduate students aged 18 to 23 from five universities of Karachi completed a cross-sectional survey about sleep patterns and lifestyle habits between December 2014 and November 2015. Pittsburgh Sleep Quality Index (PSQI) was used to assess the sleep quality. Data was entered and analyzed using SPSS version 22. Pearson Chi-square test was applied to determine relationship between sleep patterns and factors affecting sleep. Threshold of significance was set at <0.05. Results: Majority of the participants (60.5%) reported poor sleep quality (PSQI score >5), with an average PSQI score of 6.5 (±3.033). Sleep duration was less than 7 hours for 71.8% (N=462) of the participants. Also, most participants went to bed between 9pm to 12am, with 52.5% of males (N=136) sleeping after 12am compared to 46.1% (N=177) of the females. Other than energy drinks, no stimulant beverage showed significant relation with sleep quality. However, coffee, tea and energy drinks had a negative impact on sleep onset latency. Smoking too showed an association with poor sleep quality (p-value <0.009) and delayed sleep onset (p-value <0.009). Mobile phone was by far the most frequently used technological device. Conclusions: Poor sleep quality is prevalent among college students of Karachi. Behavioral habits like consumption of caffeinated drinks, smoking, and technology use are associated with increased odds of poor sleep quality.

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Section: Consumption Of Caffeine Cigarette Smoking and Sleepsupporting

confidence: 93%

Section: Annals Of Psychophysiology Volume 3 October 2016 ©Advance Ementioning

confidence: 99%

Determinants of Sleep Quality among Undergraduate Students of Universities of Karachi

Khan

Haroon

Murtaza

et al. 2016

Ann. psychophysiol.

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“…[1][2][3] In a recent multi-country sleep study, high levels of poor sleep quality were reported among Peruvian, Thai, Ethiopian, and Chilean university students. [4][5][6][7] Each of the populations studied showed associations between poor sleep and the consumption of stimulant beverages. [4][5][6][7] Taylor and Bramoweth 8 found that 60% of university-age students reported consuming stimulant beverages (e.g., sodas and coffee) to combat daytime sleepiness.…”

mentioning

confidence: 99%

“…[4][5][6][7] Each of the populations studied showed associations between poor sleep and the consumption of stimulant beverages. [4][5][6][7] Taylor and Bramoweth 8 found that 60% of university-age students reported consuming stimulant beverages (e.g., sodas and coffee) to combat daytime sleepiness. 8 Approximately 96% of Peruvian medical students reported regular consumption of caffeinated drinks, 9 and 34% of them reported using energy drinks.…”

mentioning

confidence: 99%

Eveningness Chronotype, Daytime Sleepiness, Caffeine Consumption, and Use of Other Stimulants Among Peruvian University Students

Whittier¹,

Sánchez

Castañeda

et al. 2014

Journal of Caffeine Research

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Objectives: The aims of this study were to evaluate patterns of circadian preferences and daytime sleepiness, and to examine the extent to which the consumption of stimulant beverages is associated with daytime sleepiness and evening chronotype among Peruvian college-age students. Methods: A total of 2,581 undergraduate students completed a self-administered comprehensive questionnaire that gathered information about sleep habits, sociodemographic and lifestyle characteristics, and the use of caffeinated beverages. The Morningness-Eveningness Questionnaire (MEQ) and Epworth Sleepiness Scale (ESS) were used to assess chronotype and daytime sleepiness. We used multivariable linear and logistic regression procedures to estimate odds ratios (OR) and 95% confidence intervals (95% CI) for the associations of sleep disorders with sociodemographic and behavioral factors. Results: The prevalence of daytime sleepiness was 35% [95% CI 32.7-36.4] and eveningness chronotype was 10% [95% CI 8.8-11.1%]. Age, sex, cigarette smoking, and alcohol consumption were significantly associated with an evening chronotype. After adjusting for age, sex, smoking, body mass index, and physical activity, students who reported consumption of any stimulant beverages had 1.25 increased odds of excessive daytime sleepiness (OR = 1.25 [95% CI 1.03-1.53]) compared with students who did not consume stimulant beverages. Consumption of any stimulant beverages was not statistically significantly associated with being an evening chronotype (OR = 1.30 [95% CI 0.86-1.96]). Conclusions: Excessive daytime sleepiness and eveningness chronotype are common among Peruvian college students. MEQ scores were associated with age, sex, smoking, and alcohol consumption. Regular stimulant beverage consumption tended to be positively associated with excessive daytime sleepiness.

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“…Sixteen subjects (average age: 36.868.9, 7 males and 9 females) whose PSQI scores were six or greater than six were selected from volunteers recruited for this study. They were suspected to possess some kind of sleep disorder because people with a PSQI score of six or greater than six are classified as poor sleepers (14).…”

Section: Methodsmentioning

confidence: 99%

The Improvement of Sleep by Oral Intake of GABA and <i>Apocynum venetum</i> Leaf Extract

Yasuda

Yamashita

Maru

et al. 2015

Journal of Nutritional Science and Vitaminology, J Nutr Sci Vit

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SummaryThe effects of two food materials, g-aminobutyric acid (GABA) produced by natural fermentation and Apocynum venetum leaf extract (AVLE), on the improvement of sleep were investigated in humans. The electroencephalogram (EEG) test revealed that oral administration of GABA (100 mg) and AVLE (50 mg) had beneficial effects on sleep. GABA shortened sleep latency by 5.3 min and AVLE increased non-rapid eye movement (REM) sleep time by 7.6%. Simultaneous intake of GABA and AVLE shortened sleep latency by 4.3 min and increased non-REM sleep time by 5.1%. The result of questionnaires showed that GABA and AVLE enabled subjects to realize the effects on sleep. These results mean that GABA can help people to fall asleep quickly, AVLE induces deep sleep, and they function complementarily with simultaneous intake. Since both GABA and AVLE are materials of foods and have been ingested for a long time, they can be regarded as safe and appropriate for daily intake in order to improve the quality of sleep.

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The Epidemiology of Sleep Quality and Consumption of Stimulant Beverages among Patagonian Chilean College Students

Cited by 47 publications

References 24 publications

Determinants of Sleep Quality among Undergraduate Students of Universities of Karachi

Determinants of Sleep Quality among Undergraduate Students of Universities of Karachi

Eveningness Chronotype, Daytime Sleepiness, Caffeine Consumption, and Use of Other Stimulants Among Peruvian University Students

The Improvement of Sleep by Oral Intake of GABA and <i>Apocynum venetum</i> Leaf Extract

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