Table 2.

Univariable generalized linear models. Parameter estimates.

Univariable Analysis. Dependent Variable: Chronic Low Back Pain	B	Crude Exp(B)	Wald 95% Confidence	Wald Chi-Square Statistic	p Value
			Interval for the Exp(B) Lower Bound–Upper Bound
Sex
Female	0.534	1.706	1.584–1.838	198.594	<0.001
BMI
Overweight	0.440	1.553	1.429–1.688	107.692	<0.001
Obese	0.782	2.186	1.977–2.416	233.248	<0.001
Physical activity during occupational activities
Standing for most of the day	−0.261	0.770	0.712–0.833	42.311	<0.001
Walking, carrying some weight, frequent displacements	−0.429	0.651	0.576–0.736	46.955	<0.001
Tasks requiring great physical effort	−0.228	0.796	0.663–0.956	5.962	0.015
Physical activity in leisure time
Occasional physical or sporting activity	−0.280	0.756	0.698–0.819	47.158	0.017
Physical activity several times a month	−0.795	0.452	0.390–0.522	114.888	<0.001
Physical activity several times a week	−1.015	0.363	0.318–0.413	229.550	<0.001
Age (years)	0.036	1.037	1.034–1.040	644.371	<0.001