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The Migrante Project is a binational study that examines health status and access to health care among Mexican migrants. Since 2007, Migrante investigators have implemented a series of cross-sectional probability-based surveys on Mexico's northern border. The current phase of Migrante includes three survey waves (N=1,200 each), each focused on a specific topic area. Data for the Wave I survey focused on HIV and sexual/reproductive health. Wave II is focused on non-communicable disease. Data collection for this wave is ongoing. Wave III (data to be collected in 2023) will focus on mental health and substance use. All surveys contain additional questions on socio-demographics, health status, health care access, migration history, and contextual factors related to migration stage. All waves also include biometric testing (for example, rapid HIV testing). Participants are sampled from four different migrant flows:

• Northbound flow: Migrants traveling north and arriving at the border from other regions in Mexico
• Southbound flow - Border: Migrants traveling from the Mexico side of the Mexico-US border to points farther south
• Southbound flow - U.S.: Migrants returning to Mexico from the U.S. voluntarily
• Deported flow: Migrants returning to Mexico from the U.S via deportation

The data herein come from the Wave I survey and were collected in Tijuana, Matamoros, and Ciudad Juárez, Mexico between August 2020 and September 2021. The study employed a multistage sampling design, with a combination of geographic and temporal sampling units, modeled after the Encuesta sobre Migración en la Frontera Norte de México (EMIF Norte). Migrante sampling sites for Wave I included bus stations, airports, and deportation stations in each of the three cities.

Eligible individuals were at least 18 years old, born in Mexico or other Latin American countries, fluent in Spanish, not residents of the city where the survey is being conducted (except for deported migrants), and traveling for labor reasons or change of residence. In total, there were 1,398 observations (northbound flow N=347, southbound flow N=703, and deported flow N=348) in Wave I, with 1,257 individuals completing the Wave I survey. Three hundred and six of these individuals belonged to the deported flow, 306 to the northbound flow, 336 to the southbound border flow, and 309 to the southbound U.S. flow. Consent rates ranged from 13% to 98% depending on the flow and survey city. Migrante surveys can be used to produce population-level estimates of health outcomes and health care access, investigate variations across migration phases, and explore the impact of health care and immigration policies on migrants' health outcomes, healthcare access, and individual and environmental health determinants.

Modeled on the Community Survey of the Project on Human Development in Chicago Neighborhoods, the project collected survey data from random samples of individuals from a random sample of "neighborhood clusters" in El Paso County, Texas. Neighborhood clusters consist of geographically contiguous and socially similar census tracts and for El Paso were determined by a combination of the local knowledge possessed by the project's researchers, preliminary analyses of the most recent census data regarding the distributions of immigrant status, language use, year of entry, and aspects of economic disadvantage as well as obvious boundaries (such as Interstates, major roads, mountains, and military installations).

The project used a sampling frame of neighborhood clusters in El Paso County stratified by measures of immigrant concentration (e.g., generational status, length of time since immigration) and socio-economic status. The project then employed Cole Lists, a company that provides consumer information for direct marketers, to obtain a list of all residential addresses in El Paso County by census tract. From each sampled neighborhood cluster, 30 residences were selected using a systematic random sampling procedure (a random start determined from a table of random numbers and then selecting every kth address. Each selected residence was mailed a notification letter, printed in English and in Spanish, regarding participation in the project and which specified that a trained interviewer will personally visit to determine which adult resident(s), if any, are willing to participate. For residences that agreed to participate, the adult resident who had the most recent birthday was selected for actual participation. These respondents received an incentive of $20. In face-to-face interviews, trained interviewers recorded each respondent's answers on a paper form and later manually entered this information into a computer file using spreadsheet software.

The California Families Project (CFP) is an ongoing longitudinal study of Mexican origin families in Northern California. This study uses community, school, family, and individual characteristics to examine developmental pathways that increase risk for and resilience to drug use in Mexican-origin youth. This study also examines the impact that economic disadvantage and cultural traditions have in Mexican-origin youth. The CFP includes a community-based sample of 674 families and children of Mexican origin living in Northern California, and includes annual assessments of parents and children. Participants with Mexican surnames were drawn at random from school rosters of students during the 2006-2007 and 2007-2008 school year. Data collection included multi-method assessments of a broad range of psychological, familial, scholastic, cultural, and neighborhood factors. Initiation of the research at age 10 was designed to assess the focal children before the onset of Alcohol, Tobacco, and Other Drug (ATOD) use, thus enabling the evaluation of how hypothesized risk and resilience mechanisms operate to exacerbate early onset during adolescence or help prevent its occurrence. This study includes a diversity of families that represent a wide range of incomes, education, family history, and family structures, including two-parent and single-parent families.

The accompanying data file consists of 674 family cases with each case representing a focal child and at least one parent (Two-parent: n=549, 82 percent; Single-parent: n=125, 18 percent). Of the 3,139 total variables, 839 pertain to the focal child, 1,376 correspond to the mother, and 908 items pertain to the father.

Please note: While the California Families Project is a longitudinal study, only the baseline data are currently available in this data collection.

The Los Angeles Metropolitan Area Surveys [LAMAS] 3, 1971 collection reflects data gathered in 1973 as part of the Los Angeles Metropolitan Area Surveys (LAMAS). The LAMAS, beginning in the spring of 1970, are a shared-time omnibus survey of Los Angeles County community members, usually repeated twice annually. The LAMAS were conducted ten times between 1970 and 1976 in an effort to develop a set of standard community profile measures appropriate for use in the planning and evaluation of public policy.

The LAMAS instruments, indexes, and scales were used to track the development and course of social indicators (including social, psychological, health, and economic variables) and the impact of public policy on the community. Questions in this survey cover respondents' attitudes toward the following topics: the concept of a model neighborhood, air pollution, medical problems and health care services in the community, local government politics, police relations, crime, the Mexican-American protests, and public transportation. A sub-sample of households in the San Fernando Area were asked questions about the 1970 earthquake, rating the effectiveness of local government response and the respondents' feelings about possible future disasters.

Demographic variables included in this dataset include age, marital status, religion, sex, education, income, geographic origin, and race.

The Hispanic EPESE provides data on risk factors for mortality and morbidity in Mexican Americans in order to contrast how these factors operate differently in non-Hispanic White Americans, African Americans, and other major ethnic groups.

The Wave 8 dataset comprises the seventh follow-up of the baseline Hispanic EPESE (HISPANIC ESTABLISHED POPULATIONS FOR THE EPIDEMIOLOGIC STUDIES OF THE ELDERLY, 1993-1994: [ARIZONA, CALIFORNIA, COLORADO, NEW MEXICO, AND TEXAS] [ICPSR 2851]). The baseline Hispanic EPESE collected data on a representative sample of community-dwelling Mexican Americans, aged 65 years and older, residing in the five southwestern states of Arizona, California, Colorado, New Mexico, and Texas.

The public-use data cover demographic characteristics (age, sex, marital status), height, weight, BMI, social and physical functioning, chronic conditions, related health problems, health habits, self-reported use of hospital and nursing home services, and depression. Subsequent follow-ups provide a cross-sectional examination of the predictors of mortality, changes in health outcomes, and institutionalization, and other changes in living arrangements, as well as changes in life situations and quality of life issues.

During this 8th Wave, 2012-2013, re-interviews were conducted either in person or by proxy, with 452 of the original respondents. This Wave also includes 292 re-interviews from the additional sample of Mexican Americans aged 75 years and over with higher average-levels of education than those of the surviving cohort who were added in Wave 5, increasing the total number of respondents to 744.

These data include county-level, net migration estimates by five-year age cohorts and sex, and by race and Hispanic origin, for the intercensal period from 2000 to 2010. The estimates were prepared using a vital statistics version of the forward cohort residual method. These estimates (and the net migration rates derivable from them) extend the set of decennial estimates of net migration that have been produced following each decennial census beginning with 1960 (net migration for the 1950s: Bowles and Tarver, 1965; 1960s: Bowles, Beale and Lee, 1975; 1970s: White, Mueser and Tierney, 1987; 1980s: Fuguitt, Beale, and Voss 2010; and 1990s: Voss, McNiven, Hammer, Johnson and Fuguitt, 2004).

Further information about this project is available on the Net Migration Patterns for US Counties Web site.

Oral contraceptive (OC) users living in El Paso, Texas were interviewed to assess motivations for patronizing a United States clinic or a Mexican pharmacy with over-the-counter (OTC) pills and to determine which women were likely to use the OTC option. The experiences of OC users who obtained their contraception from Mexican pharmacies were compared with those of women who obtained their pills from family planning clinics in El Paso, Texas, where eligible low-income women often pay nothing. 532 clinic users and 514 pharmacy users were surveyed about background characteristics, motivations for choosing their oral contraception source, and satisfaction with this source. For more information, please see the Border Contraceptive Access Study website.