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Table 1 Proportion of beneficiaries without a gap in Medicaid enrollment in each subsequent file year following their initial file year devoid of a gap, using 1999–2011 Medicaid Analytic Extract Personal Summary files from CA, FL, NY, OH, and PA

From: The quality of Medicaid and Medicare data obtained from CMS and its contractors: implications for pharmacoepidemiology

  1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011
1999 100 58 47 41 35 30 27 23 21 19 17 15 14
2000   100 56 42 31 14 12 10 8 7 6 5 5
2001    100 50 33 21 17 13 11 9 8 7 6
2002     100 48 28 21 17 13 11 10 9 8
2003      100 41 27 20 15 13 11 9 8
2004       100 52 34 26 12 10 9 7
2005        100 44 28 18 15 13 11
2006         100 44 25 20 17 14
2007          100 39 28 22 18
2008           100 56 42 34
2009            100 50 34
2010             100 48
2011              100