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Table 1 Descriptive statistics of subjects' demographic characteristics

From: The association between back pain and trunk posture of workers in a special school for the severe handicaps

Characteristic Subjects with LBP
(n = 18)
Asymptomatic subjects
(n = 15)
p-value
Mean age (SD) 33.9 (8.2) 38.9 (8.0) 0.085
   Sex (%)    
Male 4 (22.2%) 9 (60%)  
Female 14 (77.8%) 6 (40%) 0.03
Mean height (SD) 161.4 cm (7.9) 163.4 cm (6.9) 0.448
Mean body weight (SD) 53.5 kg (9.5) 58.5 kg (10.2) 0.157
Mean years of working experience 8.5 (4.8) 12.0 (5.6) 0.061
Average number of lifts per shift 16.5(2.9) 15.3(2.3) 0.20
Professions Teacher = 11
Health care professional = 5
Teaching assistant = 2
Teacher = 10
Health care professional = 4
Teaching assistant = 1