Prevalence of musculoskeletal disorders and its relation to depression among workers in kindergarten

Working in a closed environment for more than 7-8 hours can affect both psychological and physical health among kindergarten workers.

To determine the prevalence of musculoskeletal disorders (MSD) and depression as well as the correlation between them, if any, among kindergarten workers.

In a cross-sectional observation, one hundred and five healthy female staff members (age: 34.27±7.01 year, working duration: 7.42±0.81 hr/d, BMI: 24.50±2.61 kg/m2 (mean±SD)), who have had at least one year of working experience, were selected randomly from 10 kindergartens. The subjects completed both the Cornell musculoskeletal and Patient Health (PHQ-9) questionnaires to enable the assessments of MSD and depression scores accordingly. The correlation between both questionnaires was then measured to find any links. To assess the reliability of Farsi-language versions of the Cornell questionnaire and PHQ-9, the Inter-class Correlation Co-efficient (ICC) was measured through test-retest with 1-week delay and the prevalence of MSD and depression were subsequently assessed as well.

The Inter-class Correlation Co-efficient (ICC) illustrated that the Farsi version of MSD instruments showed high levels of repeatability. The ICC coefficient was (0.932-0.987, p < 0.001) for the Cornell questionnaire and the Cronbach alpha for PHQ-9 questionnaire was 0.861. The highest severity of pain was related to lower back (30.5%), and after it, neck (27.6%), right shoulder (27.6%) and left shoulder (25.7%) pain, respectively. The results of PHQ-9 questionnaire indicated that 41.9% (n = 44) of subjects had a severe depression. There was a significant (r = 0.338, p < 0.01) relation between depression and MSD.

Prevalence of depression and severity of physical pain was an issue among staff in kindergartens. More study will be needed to define all aspects of this issue.