Basic Metadata
Note: Low Birth Weight Percentage is the number of deliveries with very low birth weight divided by the total number of live births, by geography. Births with unknown birth weight are not included.
Very Low birth weight (VLBW) is a term used to describe babies who are born weighing less than 1,500 g (approximately 3 lbs., 5 oz.). In contrast, the average newborn weighs about 8 pounds.

**Blank Cells: Percentages not calculated for fewer than 5 events. Percentages not calculated in cases where zip code is unknown.
***API: Asian/Pacific Islander.
***AIAN: American Indian/Alaska Native.

Sources: State of California, Department of Public Health, Center for Health Statistics and Informatics, Birth Statistical Master Files and Birth Public Use Files. County of San Diego, Health and Human Services Agency, Public Health Services, Maternal, Child and Family Health Services (MCFHS).
Prepared by: County of San Diego, Health & Human Services Agency, Public Health Services, Community Health Statistics Unit, 2018.

Data Guide, Dictionary, and Codebook:
https://www.sandiegocounty.gov/content/dam/sdc/hhsa/programs/phs/CHS/Community%20Profiles/Public%20Health%20Services%20Codebook_Data%20Guide_Metadata_10.18.xlsx

Interpretation: "3% of live births in Geography X were very low birth weight".

Basic Metadata
Note: The Preterm percentage is the proportion of live births that were preterm divided by the number of live births with known length of gestation, by geography.
Preterm birth refers to birth prior to 37 completed weeks of gestation.

**Blank Cells: Percentages not calculated for fewer than 5 events. Percentages not calculated in cases where zip code is unknown.

***API: Asian/Pacific Islander.
***AIAN: American Indian/Alaska Native.

Sources: State of California, Department of Public Health, Center for Health Statistics and Informatics, Birth Statistical Master Files and Birth Public Use Files. County of San Diego, Health and Human Services Agency, Public Health Services, Maternal, Child and Family Health Services (MCFHS).

Prepared by: County of San Diego, Health & Human Services Agency, Public Health Services, Community Health Statistics Unit, 2019.

Data Guide, Dictionary, and Codebook:
https://www.sandiegocounty.gov/content/dam/sdc/hhsa/programs/phs/CHS/Community%20Profiles/Public%20Health%20Services%20Codebook_Data%20Guide_Metadata_10.2.19.xlsx

Interpretation: "3% of births in Geography X were preterm births".

Basic Metadata
Note: Low Birth Weight Percentage is the number of deliveries with low birth weight divided by the total number of live births, by geography.
Low birth weight is a term used to describe babies who are born weighing less than 2,500 grams (5 pounds, 8 ounces). In contrast, the average newborn weighs about 8 pounds. Births with unknown birth weight are not included.

**Blank Cells: Percentages not calculated for fewer than 5 events. Percentages not calculated in cases where zip code is unknown.

***API: Asian/Pacific Islander.
***AIAN: American Indian/Alaska Native.

Sources: State of California, Department of Public Health, Center for Health Statistics and Informatics, Birth Statistical Master Files and Birth Public Use Files. County of San Diego, Health and Human Services Agency, Public Health Services, Maternal, Child and Family Health Services (MCFHS).

Prepared by: County of San Diego, Health & Human Services Agency, Public Health Services, Community Health Statistics Unit, 2019.

Data Guide, Dictionary, and Codebook:
https://www.sandiegocounty.gov/content/dam/sdc/hhsa/programs/phs/CHS/Community%20Profiles/Public%20Health%20Services%20Codebook_Data%20Guide_Metadata_10.2.19.xlsx

Interpretation: "3% of live births in Geography X were low birth weight".

Basic Metadata
Note: Live Births Percentage are the number of live births in a geography divided by the number of live births in San Diego County.

**Blank Cells: Percentages not calculated for fewer than 5 events. Percentages not calculated in cases where zip code is unknown.

***API: Asian/Pacific Islander.
***AIAN: American Indian/Alaska Native.

Prepared by: County of San Diego, Health & Human Services Agency, Public Health Services, Community Health Statistics Unit, 2019.

Data Guide, Dictionary, and Codebook:
https://www.sandiegocounty.gov/content/dam/sdc/hhsa/programs/phs/CHS/Community%20Profiles/Public%20Health%20Services%20Codebook_Data%20Guide_Metadata_10.2.19.xlsx

Interpretation: "10% of all births in San Diego County occurred in Geography X".