STUDY OBJECTIVE: To test the hypothesis that children born to mothers living near the sea are at increased risk of limb reduction defects. DESIGN: Descriptive data analysis. SETTING: The northern health region of England. PATIENTS: All children born between 1 January 1985 and 31 December 1992 in the northern region of England with isolated limb reduction defects. MAIN RESULTS: The birth prevalence of isolated limb reduction defects was not affected by the distance the mother lived from the sea. There was some evidence of space-time clustering, but there was no evidence of statistically significant variation in the occurrence of the condition with sex, time of birth (monthly or yearly), or county of birth. CONCLUSIONS: There is no evidence that children born to mothers living near the sea are at increased risk of limb reduction defects.
STUDY OBJECTIVE: To test the hypothesis that children born to mothers living near the sea are at increased risk of limb reduction defects. DESIGN: Descriptive data analysis. SETTING: The northern health region of England. PATIENTS: All children born between 1 January 1985 and 31 December 1992 in the northern region of England with isolated limb reduction defects. MAIN RESULTS: The birth prevalence of isolated limb reduction defects was not affected by the distance the mother lived from the sea. There was some evidence of space-time clustering, but there was no evidence of statistically significant variation in the occurrence of the condition with sex, time of birth (monthly or yearly), or county of birth. CONCLUSIONS: There is no evidence that children born to mothers living near the sea are at increased risk of limb reduction defects.