In 2006, Czaplinski, Yen and Appel report on 1034 patients who visited Baylor's ALS center. They found a median of nearly 42 months but could not find efficacy of riluzole in the 430 patients who tried; their data also 'associated' PEG (n=275) and NIV (n=128) with increased risk of death. They appeared to hypothesize their higher median was the product of larger number of young patients and admitted their PEG and NIV numbers might not be sound because their database was not developed to evaluate those technologies. They felt an ALS center being harbored in a medical school probably improved the quality of care patients tended to receive.