Table 1.

Prevalence of skeletal fluorosis (SF) among children in a coal-burning endemic fluorosis area, Zhijin, Guizhou, China, 2004.

Gender	n	Number examined	SF cases detected	Prevalence (%)
Boys	830	188	70	8.4§
Girls	786	182	52	6.6
Total	1,616	370	122	7.5

^§Boys were 1.48 times as likely as girls to be diagnosed with skeletal fluorosis (OR = 1.48, 95% CI: 0.96–2.30; P = .0764).