Detailed Instructions: Indicate the presence of numerical data in the abstract (whether numerical data plays a key role in medical records), solely using the information from the abstract.
Problem:Abstract: Statistically significant linear correlations between geographic variations in salt consumption and mortality from gastric, but not duodenal ulcer, are reported. It is suggested that dietary consumption of salt is a risk factor in mortality from gastric ulcer. 
Question: Does the abstract contain any numerical data?
Solution:
No