Coccidioidomycosis cases (N = 2534) by gender and male to female ratio, Los Angeles County, California, 1992–2011.

<p>Legend. The male to female ratio increased from 2.1 to 5.7 between 1992 and 2003. This changed starting in 2004 through 2011 as the ratio abruptly dropped and stabilized between 1.4 and 2.2. The number of female cases increased suddenly in 2004 but the number of male cases increased gradually since 1997.