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Insights into Imaging

Table 3 NRS score results of patients with one level injected compared to those having two or more levels injected within the group of non-responders (telephone patients)

From: Imaging-guided lumbar facet injections: is there a difference in outcomes between low back pain patients who remember to return a postal questionnaire and those who do not?

Baseline data and outcomes

1 level injected, mean + (SD)

2 or more levels injected, mean + (SD)

1 vs. 2 level statistical significance (p)

Pre NRS (baseline)

6.5 + (2.4)

7.9 + (2.2)

0.012 **

20-30-min NRS

3.5 + (2.7)*

4.8 + (2.7)*

0.04**

1-month NRS

5.3 + (3.0)*

5.3 + (2.5)*

0.924

  1. *p < 0.05 compared to baseline scores, **p < 0.05 compared to each other
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