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Table 4 ARD rates by locality type and distance from the IP in the Bedouin population (1999–2000)

From: Major congenital malformations and residential proximity to a regional industrial park including a national toxic waste site: An ecological study

Distance from the IP Number of deliveries Number of cases Rate per 1000 deliveries 95% confidence interval
Bedouin traditional tribal settlements
< 20 km 1409 3 2.13* (-)0.28-4.54
> 20 km 604 10 16.56 6.38-26.73
± 20 km 474 5 10.55** 1.35-19.80
Bedouin permanent localities
< 20 km 1635 4 2.44 0.05-4.84
> 20 km 5159 24 4.65 2.80-6.51
  1. * p value < 0.05, ** p value < 0.01
  2. ± 20 km – on both sides of the 20 km boundary