article_snippet.sent: Andrea Yates was said to be suffering from postpartum depression when Andrea Yates drowned Andrea Yates children in 2001 .
article_snippet.sent: Andrea Yates had been diagnosed with postpartum psychosis - the most severe and rarest form of postpartum depression.
article_snippet.sent: Little was known about it at the time and most afflicted mothers were left to suffer in silence.
article_snippet.sent: The former nurse and stay-at-home
article_snippet.sent: Yates attorney George Parnham and his wife, Mary, have campaigned for more awareness of women's mental health issues.
article_snippet.sent: Nine years ago, his helped setup the Yates Children Memorial Fund to educate families about postpartum psychosis and similar conditions.
article_snippet.sent: One out of 1,000 women are said to experience postpartum psychosis and may hear voices, see things and have thoughts of harming One out of 1,000 women or One out of 1,000 women baby.
article_snippet.sent: Last year, doctors recommended that Yates be granted permission to attend group outings from the psychiatric hospital where Yates has been institutionalized since 2006.
article_snippet.sent: Yates is the only patient at Kerrville State Hospital who has never received a group-outing pass, said Yates.