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Table 1 Data Entry Reliability Study Results 1998 Medicare Health Outcomes Survey

From: Using multiple survey vendors to collect health outcomes information: How accurate are the data?

Vendor (Overall Response Rate) Number of Cases Mean Agreement Rate Mean Agreement Rate Adjusted for Skip Pattern Problems
A (62%) 400 99.4% 99.4%
B (59%) 397 97.1% 98.6%
C (66%) 400 97.7% 97.9%
D (58%) 400 97.0% 99.9%
E (62%) 400 97.1% 99.7%
F (58%) 400 99.8% 99.8%
All Vendors (60%) 2397 98.0% 99.2%