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Query Results for New Mexico Birth Data for Environmental Public Health Tracking (EPHT) Program - Percentage of Preterm (less than 37 weeks gestation) Live, Singleton Births

Filter: YearGrp5
Year Filter: 2013-2017
Data Grouped By:NM Small Areas

Statistical Stability

Statistical stability, reported in the data table, is based on a statistic called the "Relative Standard Error," or RSE, which is the standard error expressed as a proportion of the point estimate (e.g., 30% of the point estimate). The following conventions are used here to interpret the RSE. * A dash (-) means that the relative standard error (RSE) is below 0.30 and the count or rate may be considered stable. * "Unstable" is displayed when the RSE is 0.30-0.50. An unstable count or rate may fluctuate widely across time periods due to random variation (chance). * "Very Unstable" is displayed when the RSE is greater than 0.50. A very unstable count or rate should not be used to inform decisions. You may combine years or otherwise increase the population size used in the query to achieve a more stable count or rate. Problems with statistical instability typically occur when there is a small number of health events in a small population. For more information on statistical stability, visit the NM-IBIS Reliability & Validity page [].

NM-IBIS Map Guidance

For guidance on NM-IBIS map categories, please visit [].


For the complete metadata file, please see the Preterm Births metadata file.
  • New Mexico Birth Certificate Database, Bureau of Vital Records and Health Statistics, New Mexico Department of Health
These data were queried on: Fri, 27 Nov 2020 18:41:03 MST
The dataset was last updated on: Fri, 26 Jul 2019 14:33:39 MDT

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The NM EPHT website is supported by Cooperative Agreement Number, 6 NUE1EH001354 (previously, 5 U38EH000949), funded by the Centers for Disease Control and Prevention (CDC). Its contents are solely the responsibility of the authors and do not necessarily represent the official views of CDC or do not necessarily reflect the official policies of the Department of Health and Human Services, nor does the mention of trade names, commercial practices, or organizations imply endorsement by the U.S. Government. The information published on this website may be reproduced without permission. Please use the following citation: " Retrieved Fri, 27 November 2020 18:41:03 from New Mexico EPHT Tracking Public Web site: ".

Content updated: Thu, 4 Jun 2020 16:26:09 MDT