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Table 3 The 12 month prevalence of LBP among Botswana teachers in relation to individual and lifestyle factors

From: Low back pain among school teachers in Botswana, prevalence and risk factors

Risk factorsa % with LBP P value
Gender   <0.001
Male 47.7  
Female 58.7  
Age (years)   0.356
≤30 53.5  
31-40 54.5  
41-50 58.9  
>50 56.4  
Body mass index   0.673
<18.5 50.7  
18-24.9 54.1  
25-29.9 56.5  
≥30 57.2  
Marital status   0.220
Single 53.7  
Married 57.9  
Separated/divorced/widowed 57.4  
Education level   0.515
Certificate 51.1  
Diploma 55.3  
Bachelor’s degree 57.0  
Number of children <6 years   0.562
1 55.2  
≥2 58.1  
Previous injury   <0.001
No 51.7  
Yes 91.8  
Tobacco smoking   0.120
Smokers 42.9  
Ex-smokers 52.7  
Never smoked 56.3  
Regular physical exercise (hours per week)   0.024
≤5 57.6  
>5 47.2  
School level   0.176
Primary school 57.5  
Junior secondary school 52.8  
Senior secondary school 54.1  
Length of employment (years)   0.307
≤10 53.8  
11-20 56.1  
21-30 60.1  
>30 58.1  
Hours of work per week   0.002
40 54.2  
>40 65.5  
Average number of students taught   0.591
≤25 51.4  
26-30 57.0  
31-35 57.9  
36-40 55.0  
>40 55.2  
Extracurricular activities   0.623
No 56.6  
Yes 55.2  
  1. aStatistical associations between independent variables and LBP were evaluated using chi-squared. Statistically significant differences (p < 0.05) are marked in bold.