Prevalence of Congenital Anomalies: A Community-Based Study in the Northwest of Iran

Table 3

Time trends for prevalence rates (per 10 000 live births) of selected groups of congenital anomalies, Tabriz, Iran.

Time trend	Cleft lip with/without palate		Congenital heart diseases		Nervous system anomalies		Musculoskeletal and connective tissue anomalies		Ear and eye anomalies
	Prevalence	95% CI	Prevalence	95% CI	Prevalence	95% CI	Prevalence	95% CI	Prevalence	95% CI
2004–2006	7.3	0.91–13.8	13.2	4.5–21.9	19	8.7–29.5	13.2	8.7–29.5	13.2	8.7–29.5
2007–2009	13.7	5.2–22.3	24.8	13.3–36.2	27.5	15.4–39.6	11	3.3–18.6	13.7	5.2–22.3
2010–2012	9.4	2.9–16	22.4	12.3–32.5	31.9	19.9–43.9	8.2	2.1–14.4	15.3	7–23.7