-Objective:To evaluate the quality of sleep, shift work, alcohol and psychostimulant drug use, and the prevalence of accidents among truck drivers. Method: Data were collected using a demographic questionnaire, the Epworth Sleepiness Scale (ESS) and the Pittsburgh sleep quality index (PSQI). Statistical analysis was conducted using the Student t, chi-square, Pearson and Fisher tests. Results: 43.2% of the drivers drove over 16 h a day, and 2.9% worked shifts. Mean number of sleep hours/day was 5.97±1.47; 23.8% slept <5 hours; 50.9% made use of alcohol, 95.6% of caffeine, and 11.1% of amphetamines. Mean PSQI was 4.95±2.56; 35.4% had a PSQI >5; 23 subjects snored more than three times a week (11.1%). Mean ESS was 6.56±4.2; 21.7% had a score >10. In the preceding five years, 27 drivers (13.1%) were involved in accidents, 5 of which resulted in injuries and 3 in deaths. Conclusion: Results showed a high prevalence of sleep disorders, use of alcohol and psychostimulant drugs, and accidents. (11,1%). A ESE teve uma média de 6,56 +/-4,2; 21.7% um escore superior a 10. Nos últimos cinco anos 27 motoristas (13,1%) estiveram envolvidos em acidentes, 5 com feridos e 3 com mort o s . Conclusão: Foi alta a prevalência de distúr-bios do sono, uso de álcool e estimulantes, e de acidentes. PALAVRAS-CHAVE: sono, hábitos de sono, sonolência, acidentes de trânsito, caminhoneiros.

Obesity affects more than 50% of narcoleptic children, mostly younger at disease onset, and has a deleterious impact on sleep quality as well as on school attendance.

This descriptive, cross-sectional study was based on subjective questionnaires that assessed nighttime habits of television viewing and Internet use during weekdays and perceived sleep quality among university students. Sleep perception was measured using the Pittsburgh Sleep Quality Index (PSQI). The study group comprised 710 university students aged 17-25 years. Analysis of sleep perception in relation to internet use revealed that 58.06% of subjects who accessed the internet between 19:00 and 21:00 slept poorly; 71.43% between 19:00 and 22:00; 73.33% between 19:00 and 24:00; and 52.38% between 19:00 and 03:00 (p=0.0251). Concerning the relationship between television exposure and perceived sleep, the groups did not differ from each other (p=0.9303). This study showed that internet use between 19:00 and 24:00 increases the risk of poor sleep among young adults, in comparison with television viewing times. Key words: quality of sleep, internet, television, sleep disturbances.Qualidade do sono entre universitários: os efeitos da utilização do computador e televisão no período da noite resumo Este estudo transversal descritivo com base em questionários subjetivos avalia o hábito de assistir TV e acessar a internet durante as noites nos dias de semana e a percepção da qualidade do sono entre universitários. Para avaliar a percepção do sono foi aplicado o Índice de Qualidade do Sono de Pittsburgh. O grupo estudado incluiu 710 universitários entre 17-25 anos. Para as análises da percepção do sono relacionado ao hábito de acessar o computador observou-se que acessam a internet e dormem mal: 58,06% entre as 19 e as 21h; 71,43% entre as 19 e as 22h; 73,33% entre as 19 e as 24h; 52,38% entre as 19 e as 3h (p=0,0251). Em relação aos horários de assistir TV e a percepção do sono os grupos não se diferenciaram entre si (p=0,9303). O estudo demonstra que acessar a internet durante os horários das 19 às 24h aumenta as chances dos jovens dormirem mal quando comparado aos horários de assistir TV. Palavras-chave: qualidade do sono, internet, televisão, distúrbios do sono.

Narcoleptic children and adolescents were at high risk for poor HRQL. Depressive symptoms had a major impact on HRQL. We recommend a more thorough assessment and management of psychological health in this population.

No abstract

-The prevalence of excessive daytime sleepiness (EDS) in general population was determined by means of 408 home interviews of adults, in a representative sample of Campo Grande city, Brazil. The random sample was stratified by sex, age and economic social status. EDS was considered in those with indexes 11 or more in the Epworth Sleepiness Scale. Statistics used chi-square, Fisher and Pearson tests; and inferences based on binomial distribution parameters; the significance level was 5% and confidence interval (CI) was 95%. The prevalence of EDS was 18.9% of the general population ( SD=1.9%; CI 15.1% to 22.7%). No significant association was found between EDS and the use of hypnotics, nor with insomnia, body mass index, sex, age, years of schooling, economic social status, marital status, occupation and the use of alternative means to improve sleep. When the sample was separated according to sex, only the male group showed significant association between EDS and actual insomnia (p=0.005).KEY WORDS: sleepiness, sleep, sleep disorders, Epworth Sleepiness Scale.Sonolência diurna excessiva na população geral de Campo Grande, MS Sonolência diurna excessiva na população geral de Campo Grande, MS Sonolência diurna excessiva na população geral de Campo Grande, MS Sonolência diurna excessiva na população geral de Campo Grande, MS Sonolência diurna excessiva na população geral de Campo Grande, MS RESUMO -Buscou-se a prevalência da sonolência diurna excessiva (SDE) com 408 entrevistas domiciliares de adultos, em amostra representativa da população geral da cidade de Campo Grande, MS. A amostragem aleatória foi estratificada por sexo, idade e classe social. Tinham SDE as pessoas com 11 ou mais pontos na Escala de Sonolência Epworth. Usaram-se os testes de qui-quadrado, Fisher, Pearson e inferências com base nos parâmetros da distribuição binomial; nível de significância 5% e intervalo de confiança (IC) 95%. Tinham SDE 18,9% da população (dp=1,9%; IC 15,1% a 22,7%); não houve associação significativa entre SDE e uso de hipnóticos, nem insônia, índice de massa corporal, sexo, idade, escolaridade, classe sócio-econômica, estado civil, ocupação e uso de meios alternativos para dormir melhor. Ao serem separados de acordo com sexo, apenas no sexo masculino houve associação significativa entre SDE e presença de insônia (p=0,005). PALAVRAS-CHAVE: sonolência, sono, distúrbios do sono,

The ballance between endogenous and exogenous factors is remarkably relevant for biological rhythms, and it can be impaired by environmental changes and consequently provoke a series of disturbances such as sleep disorders, indisposition, gastro-intestinal changes 1 , mood fluctuations, irritability, tension, confusion, anxiety and reduced performance in tasks that require attention and concentration 2 . The sleep-wakefulness cycle is a circadian rhythm that, under natural conditions oscillates over a 24-hour period. The interchange of day-night (lightdark), school hours, work hours, leisure time, family activities, are exogenous factors that synchronize sleep-wakefulness 3 . Besides this environmental synchronization, the sleep-wakefulness cycle originates and is regulated endogenously by a neural structure located in the hypothalamus, it is the supraquiasmatic nucleus, considered the master circadian biological clock for mamals 4,5 . Optional hours, that prevent us from sleeping at habitual hours, considerably affect psychophysiological balance. The clinical adverse effects of the interruption of circadian rhythms, such as night-shift work include severe impairment during wakefulness 1 . Sleep is an important factor of synchronization between internal fluctuations and environmental cycles. In humans, the best example of organism and environmental synchronization is the sleep/ wake cycle, regulated by light and dark. According to their nature and social organization, human are active during the day, their physical functions are es- NIGHTLY USE OF COMPUTER BY ADOLESCENTSIts effect on quality of sleep

-The insomnia prevalence in general population was determined by means of 408 home interviews of adults, in a representative sample of Campo Grande city, Brazil. The random sample was stratified by sex, age and economic social status. Insomnia subtypes evaluated were the disorders of sleep initiation (DSI), sleep maintenance (DSM) and early awakening (DEA). A structured questionnaire was used with the consent from the interviewed subjects. Statistics used chi-square, and Fisher tests; and inferences based on binomial distribution parameters; the significance level was 5% and confidence interval (CI) was 95%.The general prevalence of insomnia was 19.1% (sd=2.0%), mostly women (p=0.0015), and people of less years of schooling (p=0.0317), subtype DSI (14.2%, p=0.0043), and chronic (p=0.7022). Hypnotic drugs were used by 6.9%(sd=1.3%) in the last month. Use in the last 2 years, 70.3% mostly insomniacs (p<0.0001), women (p=0.0372) and people over 30 years of age (p=0.0536).KEY WORDS: sleep, sleep disorders, insomnia, hypnotic use, general population. Insônia e uso de hipnóticos na população geral de Campo Grande, MSRESUMO -A prevalência de insônia foi determinada por meio de 408 entrevistas domiciliares de adultos, em amostra representativa da população geral da cidade de Campo Grande, MS. A amostragem aleatória foi estratificada por sexo, idade e classe social. Os subtipos de insônia avaliados foram os distúrbios de iniciar o sono (DIS), de manutenção do sono e de despertar final precoce. Foi utilizado questionário estruturado com consentimento dos entrevistados. Usaram-se os testes de qui-quadrado e Fisher e inferências com base nos parâmetros da distribuição binomial; nível de significância 5% e intervalo de confiança (IC) 95%. A prevalência geral de insônia foi 19,1%(sd=2,0%), principalmente mulheres (0,0015) e pessoas com menor nível educacional (p=0,0317), subtipo DSI (14,2%, p=0,0043) e crônica (p=0,7022). Drogas hipnóticas foram usadas em 6,9%(sd=1,3%) no último mês. O uso nos últimos 2 anos foi em 70,3%, principalmente insones (p<0,0001), mulheres (p=0,0372) e pessoas acima de 30 de idade (p=0,0536). PALAVRAS-CHAVE: sono, distúrbios do sono, insônia, hipnótico, população geral.