Table 2.

Linkage matching rate and accuracy for each procedure module among Fee-for-service Medicare beneficiaries aged ≥65 years old.

Procedure Module	Time range	N Directly linked	N indirectly linked	N accurately linked	Matching rate (95% CI)	Accuracy (95% CI)
EVAR	2003–18	17810	16562	16451	93.0% (92.9–93.1%)	99.3% (99.3–99.4%)
OAR	2003–18	4311	3895	3863	90.4% (90.2–90.5%)	99.2% (99.1–99.2%)
TEVAR	2010–18	3489	3225	3191	92.4% (92.2–92.6%)	98.9% (98.9–99.0%)
CEA	2003–18	40465	38441	38107	95.0% (95.0–95.0%)	99.1% (99.1–99.2%)
CAS	2005–18	8947	7796	7733	87.1% (87.0–87.3%)	99.2% (99.2–99.2%)
LEB	2003–18	17771	16074	15951	90.5% (90.4–90.6%)	99.2% (99.2–99.3%)
PVI	2004–18	51252	47973	47808	93.6% (93.6–93.7%)	99.7% (99.6–99.7%)