Research Article
Back Pain in Poland and Germany: A Survey of Prevalence and Association with Demographic Characters
Table 2
Regression analyses for “often or very often back pain.”
| Explanatory variable | Odds ratio | Standard error | -value | value | Δ |
| Variables in the equation, pseudo % | Constant | 0.11 | 0.06 | −4.48 | <0.001 | | BMI | 1.05 | 0.02 | 2.95 | 0.003 | 0.75% | Gender | 0.48 | 0.07 | −4.81 | <0.001 | 2.09% |
| Terms not in the equation, value if added next | Country | 1.38 | 0.21 | 2.18 | 0.029 | 0.42% | Age | 1.00 | 0.005 | 0.58 | 0.559 | 0.03% | Age2 | 1.00 | 0.0003 | −0.69 | 0.490 | 0.07% | BMI2 | 1.00 | 0.004 | −0.16 | 0.874 | 0.00% | Country * gender | 0.94 | 0.27 | −0.20 | 0.843 | 0.42% | Country * age | 1.00 | 0.01 | 0.05 | 0.963 | 0.42% | Country * BMI | 0.98 | 0.03 | −0.53 | 0.597 | 0.44% | Gender * age | 1.00 | 0.01 | −0.07 | 0.944 | 0.03% | Gender * BMI | 0.96 | 0.04 | −1.18 | 0.237 | 0.12% | Age * BMI | 1.00 | 0.001 | 0.77 | 0.433 | 0.08% |
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