A November, 2010 a CARA 1 poll of U.S Catholics shows that only 23% of respondents who described themselves as Catholic regularly attend Sunday Mass. A September 2010 Pew Research poll put the number of Catholics that did not know that the bread and wine became the actual Body of Blood of Jesus Christ during the consecration at 60%.
A 2009 Pew poll on Religion and Public Life showed that the number of Catholics who believe abortion to be a critical issue, dropped form 24% (already quite low) in 2006 to 15% just 3 years later, and indicated that 47% of Catholics do not believe there should be any restrictions on abortion.
The Pew poll differentiated between those who attend Mass regularly and those who do not, but attitudes on abortion between the two groups varied little.