SLEEP-EVAL© RESEARCH

Sleep Epidemiology Research & Sleep-EVALTM Diagnosis Expert System

Stanford Sleep Epidemiology Journal

Stanford Sleep Epidemiology Research Center (SSERC)

Psy-EVAL Research

 

"Not everything that can be counted counts,
and not everything that counts can be counted."
 Albert Einstein

 

General Information

Official Name

Portuguese Republic

Capital

Lisbon

Area

92,082 Sq Km (35,553 Sq Mi)

Population 2003

10,102,022

Location

Portugal is located in South West Europe occupying the western littoral of the Iberian Peninsula.

Geography

The territory also includes the Azores, Madeira and Porto Santo Islands.
It is bound by Spain to the north and east, and the Atlantic Ocean to the south and west.

Density  (1991)

113 persons per sq km (292 persons per sq mi)

Urban-Rural (1990)

33.6% urban

66.4% rural

Sex Distribution (1989)

48.3% male

51.7% female

Life Expectancy at Birth (1990)

71.1 years male

78.1 years female

Age Breakdown (1987)

23% under 15

25% 15 to 29

19% 30 to 44

6% 45 to 59

12% 60 to 74

5% 75 and over

Birth Rate  (1992)

12.0 per 1,000

Death Rate (1992)

 13.5 per 1,000

Increase Rate (1992)

-1.5 per 1,000

Infant Mortality Rate (1991)

10.8 per 1,000 live births

 

 

Sleep Habits

 

Sleep/wake schedule

 

The Portuguese population goes to sleep around 11:40PM and wakes up around 7:25 AM.

 

They sleep on average 7 hours 13 minutes. 

 

On week ends or days off, they sleep about 55 minutes more than on week days.

 

The bedtime is varying for more than one on six individuals while the wake up time is varying for one on 11 individuals

 

Naps

 

About one on 10 individuals are regularly napping.

 

Nearly 3% of the population is napping at least two times in the same day.

 

 

Insomnia

 

One on seven individuals has difficulty falling asleep

One individual on 12 complained about the quality or quantity of his or her sleep.

This does not mean that all these individuals are insomniacs: only one on 12 individuals has a diagnosis of insomnia.

 

References

1.    Ohayon MM, Priest RG, Zulley J, Smirne S, Paiva T. Prevalence of narcolepsy symptomatology and diagnosis in the European general population. Neurology. 2002 Jun 25;58(12):1826-1833.

 

Portuguese Republic