Increase in fertility following coal and oil power plant retirements in California

Table 2 Change in the annual fertility rate (live births per 1000 women aged 15–44 years) from 2001 to 2011 in California after 8 coal and oil power plant retirements

	Live births, N (%)	Annual fertility rate Mean (95% CI)^a
		Unadjusted		Adjusted^b
		1-2 years before retirement	1 year after retirement	1–2 years before retirement	1 year after retirement
Area bin^c
0–5 km	8997 (15.3)	45 (28–61)	53 (36–70)	43 (34–53)	51 (41–61)
5–10 km	16,469 (28.0)	43 (27–58)	45 (29–61)	45 (36–54)	47 (38–56)

^a Fertility rate obtained from difference-in-differences negative binomial regression model with robust standard errors
^b Estimated at the mean value of covariates: power plant and proportion of births to Hispanic and non-Hispanic black mothers, mothers > 30 years of age, and mothers that attained a high school degree or less, and census block group level poverty (%) and individuals with < high school education (%). Standard errors estimated using the delta method
^c 10-20 km area bin served as the comparison population

ISSN: 1476-069X