Are PAS stats in Washington state reliable?

Compassion and Choices of Washington, the advocacy group that campaigned for Washington's assisted suicide law, says that of 28 Washington residents who requested drugs to kill themselves, 11 patients have used the medication to end their lives. However, the first report from the Washington state health department reported that since assisted suicide became legal in March 2009, there have been 28 requests for lethal drugs in Washington state with 16 people having died. Alex Schadenberg, the Executive Director of the Euthanasia Prevention Coalition, said he is very concerned that the euthanasia lobby group has more information about the assisted suicides in the state than does the government. "This indicates that Compassion & Choices of Washington is the gate-keeper of the Death With Dignity Act in Washington state in the same way as Compassion & Choices of Oregon is the gate-keeper of the act in their state." LifeSiteNews