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Comparative Study
. 2011 Apr;59(4):610-4.
doi: 10.1111/j.1532-5415.2011.03329.x. Epub 2011 Mar 15.

Epidemiology of restricting back pain in community-living older persons

Una E Makris  1 , Liana Fraenkel, Ling Han, Linda Leo-Summers, Thomas M Gill
Affiliations
Comparative Study

Epidemiology of restricting back pain in community-living older persons

Una E Makris et al. J Am Geriatr Soc. 2011 Apr.

Abstract

Objectives: To estimate the incidence of back pain leading to restricted activity (restricting back pain) in community-living older persons and to characterize its descriptive epidemiology.

Design: Prospective cohort study.

Setting: Greater New Haven, Connecticut.

Participants: Five hundred fifty nondisabled, community-living men and women aged 70 and older who did not report restricting back pain at baseline.

Measurements: Participants were interviewed monthly for over 10 years to ascertain the cumulative incidence, time to first episode, incidence rates (first and repeat episodes), and duration of restricting back pain. Cumulative incidence (proportions) was estimated using the Kaplan-Meier method, and incidence rates (per 1,000 person-months) were estimated using a Poisson regression model.

Results: During the more than 10 years of follow-up (median 107 months), the cumulative incidence of restricting back pain was 77.3% for men and 81.7% for women. The median time to the first episode was significantly shorter in women (25 months) than men (49 months) (P=.01). The incidence rates of restricting back pain per 1,000 person-months were 32.9 overall-24.4 for men and 37.5 for women (P<.001). There were no differences according to baseline age group. Of the 1,528 total episodes of restricting back pain, the median duration was 1.0 month, and only 6.4% lasted for 3 or more consecutive months.

Conclusion: Restricting back pain in older persons is common, short-lived, and frequently episodic. The burden of restricting back pain is greater in older women than older men.

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Conflict of interest statement

Conflict of Interest: The editor in chief has reviewed the conflict of interest checklist provided by the authors and has determined that the authors have no financial or any other kind of personal conflicts with this paper.

Figures

Figure 1
Figure 1
Kaplan-Meier curve for time to first episode of restricting back pain by sex (Panel A, p = 0.01) and baseline age group (Panel B, p = 0.57).
Figure 1
Figure 1
Kaplan-Meier curve for time to first episode of restricting back pain by sex (Panel A, p = 0.01) and baseline age group (Panel B, p = 0.57).
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