The unmarried man or woman.
Persons living in the United States having origins in any of the black groups of Africa.
Individuals whose ancestral origins are in the continent of Europe.
An infant during the first month after birth.
Groups of individuals whose putative ancestry is from native continental populations based on similarities in physical appearance.
Female parents, human or animal.
A group of people with a common cultural heritage that sets them apart from others in a variety of social relationships.
An infant having a birth weight of 2500 gm. (5.5 lb.) or less but INFANT, VERY LOW BIRTH WEIGHT is available for infants having a birth weight of 1500 grams (3.3 lb.) or less.
Persons living in the United States of Mexican (MEXICAN AMERICANS), Puerto Rican, Cuban, Central or South American, or other Spanish culture or origin. The concept does not include Brazilian Americans or Portuguese Americans.
Human females as cultural, psychological, sociological, political, and economic entities.
A natural, adoptive, or substitute parent of a dependent child, who lives with only one parent. The single parent may live with or visit the child. The concept includes the never-married, as well as the divorced and widowed.
Male parents, human or animal.
Individuals whose ancestral origins are in the continent of Africa.
The offspring in multiple pregnancies (PREGNANCY, MULTIPLE): TWINS; TRIPLETS; QUADRUPLETS; QUINTUPLETS; etc.
People who frequently change their place of residence.
Persons living in the United States having origins in any of the original peoples of the Far East, Southeast Asia, or the Indian subcontinent.
People who leave their place of residence in one country and settle in a different country.
Former members of the armed services.
Married or single individuals who share sexual relations.
Married persons, i.e., husbands and wives, or partners. Domestic partners, or spousal equivalents, are two adults who have chosen to share their lives in an intimate and committed relationship, reside together, and share a mutual obligation of support for the basic necessities of life.