Measuring Pain
An article published in the May 2008 issue of The Lancet features the results of a nationwide survey examining chronic pain in a representative sample of individuals across the USA. Using random-digit dialling, a stratified sample of 10,700 individuals were contacted and recruited for the study involving the collection of pain diary information for one 24-h period. Subjects were asked to rate pain on a 0-6 anchored scale for three randomly selected 15-min intervals. Activities of those individuals who reported substantial pain were also examined. Of the 3982 individuals who were interviewed (response rate 37%), 28.8% of men and 26.6% of women reported feeling some pain at the sampled times. Subjects with lower income or less education were found to spend a higher proportion of time in pain and reported higher average pain than did those with higher income or more education. The average pain rating increased with age, although a plateau was found between the ages of about 45 years and 75 years, with little difference between men and women. Life and health satisfaction varied inversely with reported pain. The authors report that the telephone diary technique represents a promising method for assessing the prevalence of chronic pain and the factors that can interfere with successful coping.
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