Epidemiology of Sleep: Age, Gender, and Ethnicity

By Kenneth L. Lichstein; H. Heith Durrence et al. | Go to book overview

2
A Review
of Epidemiological Studies
of Insomnia and Sleep

The epidemiological study of sleep has grown rapidly in the past 30 years. This growth is demonstrated by examining the publication dates of the 46 articles included in the present review (see Table 2.1). Only 2 of these articles were published in the 1970s, and 11 were published in the 1980s. In contrast, 26 of the articles were published during the 1990s, and 7 were published during the year 2000 or later. Thus, a rather sparse literature has rapidly evolved into a large data set. The present chapter reviews the methodology used to obtain existing data and summarizes current findings.

Our original intent in this chapter was to describe the epidemiology of both normal and insomnia sleep, but this goal was frustrated by the lack of normal sleep data. The extant sleep literature has focused on documenting insomnia prevalence rather than providing detailed descriptions of sleep. When detailed sleep data were collected, the typical approach was to merge people not having insomnia (PNI) and people with insomnia (PWI) data to report population estimates for sleep variables rather than providing separate estimates for PNI and PWI. We do report normal sleep characteristics in this chapter from the few studies that published such data, but in the main, this chapter reinforced our conviction that little is known about the self-report (SR) sleep of normal sleepers.


SELECTION OF ARTICLES TO REVIEW

A number of methods were used for locating sleep epidemiology articles. First, the electronic databases Medline and Psyclnfo were used to iden-

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Epidemiology of Sleep: Age, Gender, and Ethnicity
Table of contents

Table of contents

  • Title Page *
  • Contents vii
  • Preface ix
  • 1 - Goals and Distinctive Characteristics of This Survey 1
  • 2 - A Review of Epidemiological Studies of Insomnia and Sleep 9
  • 3 - Methods of This Survey 42
  • 4 - An Archive of Normal Sleep 73
  • Appendix 113
  • 5 - An Archive of Insomnia 152
  • 6 - An Archive of the Sleep of African Americans 177
  • 7 - Summary of Main Findings 202
  • Appendix A - Alphabetical Listing of Abbreviations and Acronyms 217
  • References 219
  • Author Index 229
  • Subject Index 235
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