TABLE 3.

Association between survey year, screen time, obesity and chronic back pain

	Model 1			Model 2
	β	95%CI	p‐value	β	95%CI	p‐value
Survey year	0.021	0.015–0.027	<0.001	0.019	0.014–0.026	<0.001
Screen time (ref = less than 2 h/day)				0.125	0.075–0.175	<0.001
Obesity (ref = nonobese)				0.314	0.258–0.370	<0.001

Note: Findings adjusted for sex and age.