. 2016 Mar 8;16:81. doi: 10.1186/s12913-016-1326-5

Table 3.

Effects of pain intensity, pain related work limitations and self-reported physical activity on health care contact throughout a year of follow-up after a new incident of neck or low back pain

	Adjusted^a	Lagged	Within person effect^b
	Odds ratio (95 % CI)	Odds ratio (95 % CI)	Odds ratio (95 % CI)
Current pain intensity +1 on NRS scale (range 0–10)	1.23 (1.14–1.32)	1.22 (1.11–1.33)	1.33 (1.14–1.56)
Strongest pain last month +1 on NRS scale (range 0–10)	1.24 (1.15–1.32)	1.13 (1.04–1.22)	1.40 (1.22–1.61)
Work limitations last month +1 on work limitation scale (range 0–6)	1.40 (1.25–1.57)	1.28 (1.11–1.47)	1.51 (1.20–2.84)
Physical activity index +1 on PAI score (range 0–15)	0.98 (0.91–1.05)	0.99 (0.91–1.08)	0.99 (0.86–1.15)
	938 observations 219 persons	693 observations 201 persons

^aOdds ratio associated with a one unit increase in each scale score; adjusted for time, sex and age group

^bOdds ratio associated with a one unit increase in each scale score; adjusted for each person’s mean across all observations