The commission also recommended a nationwide system for matching birth and death records, limiting the types of birth certificates accepted by federal agencies, standardized application forms for birth certificates and computerized storage of birth records by each state.
Poor identification of Indigenous status of patients in medical records limited the potential to report corresponding data for Indigenous people.
The retrospective collection of data for UKOSS from patient records limited the definition of socioeconomic position to maternal occupation (or paternal where maternal was not available).
This method more definitively assigned exposure through the use of reliable employment records, limited the exposure group, and introduced some uncertainty about the unexposed group (it may have contained nurses from nursing departments with possible exposure).
Currently, only Maryland and New York have such databases, and they were both put into place so recently that only a relatively small number of guns have been recorded, limiting the system's usefulness.
Twitter, for instance, also requires American political advertisers to disclose who paid for adverts, but requires that disclosure to be linked to an employer record, limiting the ability of potentially malicious actors to create fictional identities.
One focus group of 6 pediatricians was held in the city of Chicago, but technical difficulties with recording limited the usable data from this focus group.
Patients who believed that the healthcare providers had all the necessary information in the medical records, either from previous admissions or from a shared medical record, limited the information they shared with their healthcare providers.
In frequency analysis for droughts, the absence of lengthy records usually limits the reliability of statistical estimates.
However, the challenge of browsing, skimming and navigating long recorded videos limits the utility of such videos for reference and reuse.
The currency values and domain names are stored within the blockchain record, which limits the total number of namecoins to 21m, with each coin divisible down to eight decimal places.
