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. 2011 Aug 1;11:609. doi: 10.1186/1471-2458-11-609

Table 3.

Percent with high service use by socioeconomic status*

Adults with Social Security Waiver All other adults
Above average number of primary care visits 63% 34%
Above average number of specialist visits 42% 31%
Above average number of diagnostic tests 38% 28%
One or more hospitalizations 16% 7%

* p-value from chi square tests: p < 0.001 for all comparisons