RESUMEN
Factors associated with self-reported back pain were investigated using questionnaire data on 407 female nurses from a large hospital in Athens, Greece. Factor analysis was used to construct indices of pain and its impact on normal life, and also to summarize work load descriptions. Pain factors were examined in relation to work load and personal characteristics by logistic regression. Statistically significant items, in relation both to pain and impact, were the existence of previous back injury, self-reported headaches and the 'carrying and lifting' factor of work load which principally included moving equipment. Age, height and weight were not associated with back pain. Compared to a similar study by Harber and colleagues in California, United States of America, the factors associated with back pain were quite similar in this study even though the prevalence of back pain was much higher among Greek nurses and their work load was physically much more demanding.
Asunto(s)
Dolor de Espalda/etiología , Personal de Enfermería en Hospital , Enfermedades Profesionales/etiología , Dolor de Espalda/epidemiología , Análisis Factorial , Femenino , Grecia/epidemiología , Humanos , Modelos Logísticos , Enfermedades Profesionales/epidemiología , Prevalencia , Carga de TrabajoRESUMEN
The prevalence of occupational low-back pain was investigated in 407 female nurses in a large tertiary health care unit in Athens, Greece. Work-related back pain within the previous 2 weeks was reported by 63% of respondents and within the previous 6 months by 67%. Prevalence was higher (66% in the previous 2 weeks) in the wards with physically heavy duties than in the rest (52%, P = 0.003), but all grades of nursing staff were affected equally. The specific factors which claimed to be responsible for causing back pain included moving heavy items (36%), lifting patients onto trolleys (32%) or in bed (29%), helping patients out of bed (24%) and bending to lift objects from the floor (24%). Absence from work because of back pain in the previous 2 weeks was reported by 28% of the sample.
Asunto(s)
Dolor de la Región Lumbar/epidemiología , Personal de Enfermería en Hospital , Enfermedades Profesionales/epidemiología , Adulto , Fenómenos Biomecánicos , Femenino , Grecia/epidemiología , Humanos , Elevación , PrevalenciaRESUMEN
Although exertional hypercapnea has been observed in patients with advanced cystic fibrosis (CF), the causes have not been fully elucidated. In 14 patients aged 15 to 35 yr of age with advanced CF, the effects of chronic airflow limitation (CAL), increased physiologic dead space (VD), and the timing components of ventilation (VE) on gas exchange during maximal exercise were assessed. The patients were divided into those who retained CO2 during exercise, the CO2R group, and those who did not, the CO2NR group. CO2 retention was defined as a rise in end-tidal CO2 tension of 5 mm Hg or more or to a value greater than 50 mm Hg during a progressive exercise test on a cycle ergometer. CO2 retention occurred in half the subjects, usually by the halfway mark of the test, and did not rise progressively as exercise continued. It was associated with a low VE caused by a low tidal volume (VT) that was the result of a short inspiratory time to total respiratory time ratio (0.33 +/- 0.03 versus 0.38 +/- 0.04, p less than 0.02), whereas there was no difference in mean inspiratory flow or respiratory rate. Although the CO2R group had the worst CAL, with a FEV1 of 28 +/- 7 versus 41 +/- 12% predicted (p less than 0.5) and a FVC of 42 +/- 12 versus 61 +/- 9% predicted (p less than 0.01), the VT at maximal work expressed as a percentage of FVC was lower (45 +/- 13 versus 60 +/- 11, p less than 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)