title: Occupational lifting tasks as a risk factor in low back pain: a case-control study in a Mexican population.
abstract: The objective of this study was to quantify and assess whether lifting tasks in the workplace are a risk factor in lumbar spondyloarthrosis etiology. A case-control study was performed with 231 workers, 18-55 years old, insured by the Mexican Social Security Institute (IMSS, according to its designation in Spanish). A multivariate analysis using conditional logistical regression showed that lifting tasks, combined with driving tasks, are associated with this illness (OR = 7.3; 95% CI 1.7-31.4). The daily frequency of lifting as it interacts with work as a driver resulted in a greater risk (OR = 10.4; 95% CI 2.0-52.5). The load weight, daily task-hours and cumulative time showed a dose-response relationship. The attributable risk for lifting tasks was 0.83, suggesting that 83% of lumbar spondyloarthrosis development could be prevented if risk factors were eliminated by ergonomic redesign of the task.
authors.affiliation: Ergonomic Research Center of the University of Guadalajara Art, Architecture and Design Center, Extremo Norte de la Calzada Independencia, Huentitán el Bajo, CP44100, Guadalajara, Jalisco, Mexico. alil.p@yahoo.com.mx
authors.forename: Lilia R
authors.initials: LR
authors.lastname: Prado-Leon
authors.forename: Alfredo
authors.initials: A
authors.lastname: Celis
authors.forename: Rosalio
authors.initials: R
authors.lastname: Avila-Chaurand
mesh_terms: D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D017770:Lifting / Q000009:adverse effects*; D017116:Low Back Pain / Q000209:etiology*; D008297:Male; D008800:Mexico; D008875:Middle Aged; D009784:Occupational Diseases / Q000209:etiology*; D012307:Risk Factors