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Fig. 1 | BMC Public Health

Fig. 1

From: Maternal exposure to PM2.5 may increase the risk of congenital hypothyroidism in the offspring: a national database based study in China

Fig. 1

Average incidence of CH in 30 provinces of China from October 1, 2014 to October 1, 2015. a There was no data on Tibet, Taiwan, Hong Kong and Macau for no statistics. b Low-incidence areas meant that the incidence of CH was lower than 3.62 per 10,000 live births. c High-incidence areas meant that the incidence of CH was equal or greater than 3.62 per 10,000 live births

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BMC Public Health

ISSN: 1471-2458

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