Chronic pain is associated with increased health care use among community-dwelling older adults in Brazil: the Pain in the Elderly (PAINEL) Study.

BACKGROUND: Chronic pain is known to increase health care use in high-income countries, but in Brazil, little is known. OBJECTIVE: To investigate the association between chronic pain and health care use among Brazilian older adults and explore the relationship between pain severity and health care use. METHODS: This cross-sectional study was derived from the population-based study Frailty in Brazilian Older People-FIBRA. Chronic pain, pain intensity and pain-related disability were assessed through additional telephone interviews. Health care use was measured by the number of doctor visits, hospitalization events and high health care use (highest quartile of the distribution for number of doctor visits) in the last 12 months. Associations were tested in regression analyses adjusted for predisposing, enabling and illness-level components from the Andersen Model. RESULTS: The 383 participants were predominantly female (71.0%), mean age was 75.6 (6.1 SD). The prevalence of chronic pain was 30.0%. Chronic pain was associated with number of doctor visits [unstandardized B coefficient 1.48; 95% confidence interval (CI) = 0.35-2.62] and high health care use [odds ratios (OR) = 2.27; 95% CI = 1.39-3.72]. Pain intensity was associated with high health care use in univariate (OR = 1.13; 95% CI = 1.06-1.20) but not multivariate analysis (OR = 1.12; 95% CI = 0.94-1.33). Pain-related disability was not associated with any outcome. CONCLUSION: Chronic pain increased health care use among Brazilian older adults. Improving the quality of primary care management of individuals at greater risk of chronic pain should be a cornerstone of health policies directed towards reducing the personal and societal burden of ageing.

Correlates of a Recent History of Disabling Low Back Pain in Community-dwelling Older Persons: The Pain in the Elderly (PAINEL) Study.

OBJECTIVES: To investigate the correlates of a recent history of disabling low back pain (LBP) in older persons. MATERIALS AND METHODS: The Pain in the Elderly (PAINEL) Study was derived from the Frailty among Brazilian Older Adults (FIBRA) Network Study. Data were collected through face-to-face/telephone interviews and clinical examination. A series of logistic regressions assessed associations between a recent history of disabling LBP and sociodemographic, physical/lifestyle, and psychological factors. RESULTS: Of the 378 community-dwelling elders included in the study (age±SD, 75.5±6.1), 9.3% experienced LBP that was bad enough to limit or change their daily activities during the past year. Those reporting a recent history of disabling LBP were more likely to be women and under financial strain, to present poor self-rated health, overweight, multimorbidity, low physical activity level, fatigue, depressive symptomatology/diagnosis and fear beliefs, and to report decreased sleep time, prolonged sitting time, chronic pain (in location other than lower back), and frequently recurring LBP. The multivariate logistic regression analysis indicated that overweight (odds ratio [OR], 29.6; 95% confidence interval [CI], 2.3-391.0), low physical activity level (OR, 4.4; 95% CI, 1.3-15.4), fatigue (OR, 10.3; 95% CI, 2.4-43.4), depression diagnosis (OR, 4.9; 95% CI, 1.3-18.4), and frequently recurring LBP (OR, 4.6; 95% CI, 1.0-20.1) were independently associated with a recent history of disabling LBP. DISCUSSION: Our study supports the link between disabling LBP and other age-related chronic conditions in a middle-income country with a rapidly aging population.