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Chart 1A
Lumbar Fusion Procedures by SSA
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For an overview of how to read our Medical Variation Charts, click here.
(Orange bars are statistically significant at the 95% confidence level or higher.)
| 5 Year Totals - Lumbar Fusion | ||||
| AREA NAME | Significance | Ratio: OBS/EXP | % Difference | AREA NAME |
| LEWISTON | P<0.001 | 2.01 | 101% | |
| 0.96 | -4% | AUGUSTA | ||
| P<0.05 | 0.89 | -11% | PORTLAND | |
| P<0.001 | 0.63 | -37% | BANGOR | |
