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1.
Matern Child Health J ; 24(5): 640-650, 2020 May.
Artículo en Inglés | MEDLINE | ID: mdl-32200477

RESUMEN

OBJECTIVES: To compare receipt of contraception and method effectiveness in the early postpartum period among women with and without a recent preterm birth (PTB). METHODS: We used data from North Carolina birth certificates linked to Medicaid claims. We assessed contraceptive claims with dates of service within 90 days of delivery among a retrospective cohort of women who had a live birth covered by Medicaid between September 2011 and 2012 (n = 58,201). To estimate the odds of receipt of contraception by PTB status (24-36 weeks compared to 37-42 weeks [referent]), we used logistic regression and tested for interaction by parity. To estimate the relationship between PTB and method effectiveness based on the Center for Disease Control and Prevention Levels of Effectiveness of Family Planning Methods (most, moderate and least effective [referent]), we used multinomial logistic regression. RESULTS: Less than half of all women with a live birth covered by Medicaid in North Carolina had a contraceptive claim within 90 days postpartum. Women with a recent PTB had a lower prevalence of contraceptive receipt compared to women with a term birth (45.7% vs. 49.6%). Women who experienced a PTB had a lower odds of receiving contraception. When we stratified by parity, women with a PTB had a lower odds of contraceptive receipt among women with more than two births (0.79, 95% CI 0.74-0.85), but not among women with two births or fewer. One-fourth of women received a most effective method. Women with a preterm birth had a lower odds of receiving a most effective method (0.83, 95% CI 0.77-0.88) compared to women with a term birth. CONCLUSIONS FOR PRACTICE: Contraceptive receipt was low among women with a live birth covered by Medicaid in North Carolina. To optimize contraceptive use among women at risk for subsequent preterm birth, family planning strategies that are responsive to women's priorities and context, including a history of preterm birth, are needed. SIGNIFICANCE: Access to free or affordable highly effective contraception is associated with reductions in preterm birth. Self-report data indicate that women with a very preterm birth (PTB) are less likely to use highly or moderately effective contraception postpartum compared to women delivering at later gestational ages. Using Medicaid claims data, we found that less than half of all women with a Medicaid covered delivery in North Carolina in 2011-2012 had a contraceptive claim within 90 days postpartum, and one fourth received a most effective method. Women with a PTB and more than two children were least likely to receive any method. Family planning strategies that are responsive to women's priorities and context, including a history of preterm birth, are needed so that women may access their contraceptive method of choice in the postpartum period.


Asunto(s)
Anticoncepción/estadística & datos numéricos , Medicaid/estadística & datos numéricos , Nacimiento Prematuro/epidemiología , Nacimiento Prematuro/prevención & control , Adolescente , Adulto , Anticoncepción/economía , Femenino , Humanos , Recién Nacido , North Carolina/epidemiología , Atención Posnatal , Estudios Retrospectivos , Estados Unidos , Adulto Joven
2.
Psychol Men Masc ; 19(1): 145-155, 2018 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29479292

RESUMEN

Substance use is prevalent among adolescents in the U.S., especially males. Understanding the cross-sectional and longitudinal associations between gender norms and substance use is necessary to tailor substance use prevention messages and efforts appropriately. This study investigates the relationship between adherence to gender-typical behavior (AGB) and substance use from adolescence into young adulthood. Participants in the National Longitudinal Study of Adolescent to Adult Health completed self-report measures on the frequency of binge drinking, cigarette smoking and marijuana use as well as various behaviors and emotional states that captured the latent construct of AGB. Sex-stratified logistic regression models revealed cross-sectional and longitudinal relationships between AGB and high frequency substance use. For example, an adolescent male who is more gender-adherent, compared to less adherent males, has 75% higher odds of high frequency binge drinking in adolescence and 22% higher odds of high frequency binge drinking in young adulthood. Sex-stratified multinomial logistic regression models also revealed cross-sectional and longitudinal relationships between AGB and patterns of use. For example, a more gender-adherent adolescent male, compared to one who is less adherent, is 256% more likely to use all three substances in adolescence and 66% more likely to use all three in young adulthood. Cross-sectional and longitudinal results for females indicate greater gender-adherence is associated with lower odds of high frequency substance use. These findings indicate adherence to gender norms may influence substance use behaviors across the developmental trajectory, and inform strategies for prevention efforts.

3.
Am Heart J ; 185: 110-122, 2017 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-28267464

RESUMEN

Based on prior research finding the 5HTTLPR L allele associated with increased cardiovascular reactivity to laboratory stressors and increased risk of myocardial infarction, we hypothesized that the 5HTTLPR L allele will be associated with increased blood pressure (BP) and increased hypertension prevalence in 2 large nationally representative samples in the United States and Singapore. METHODS: Logistic regression and linear models tested associations between triallelic (L'S', based on rs25531) 5HTTLPR genotypes and hypertension severity and mean systolic and diastolic blood pressure (SBP and DBP) collected during the Wave IV survey of the National Longitudinal Study of Adolescent to Adult Health (Add Health, N=11,815) in 2008-09 and during 2004-07 in 4196 Singaporeans. RESULTS: In US Whites, L' allele carriers had higher SBP (0.9 mm Hg, 95% CI=0.26-1.56) and greater odds (OR=1.23, 95% CI=1.10-1.38) of more severe hypertension than those with S'S' genotypes. In African Americans, L' carriers had lower mean SBP (-1.27mm Hg, 95% CI=-2.53 to -0.01) and lower odds (OR = 0.78, 95% CI=0.65-0.94) of more severe hypertension than those with the S'S' genotype. In African Americans, those with L'L' genotypes had lower DBP (-1.13mm Hg, 95% CI=-2.09 to -0.16) than S' carriers. In Native Americans, L' carriers had lower SBP (-6.05mm Hg, 95% CI=-9.59 to -2.51) and lower odds of hypertension (OR = 0.34, 95% CI=0.13-0.89) than those with the S'S' genotype. In Asian/Pacific Islanders those carrying the L' allele had lower DBP (-1.77mm Hg, 95% CI=-3.16 to -0.38) and lower odds of hypertension (OR = 0.68, 95% CI=0.48-0.96) than those with S'S'. In the Singapore sample S' carriers had higher SBP (3.02mm Hg, 95% CI=0.54-5.51) and DBP (1.90mm Hg, 95% CI=0.49-3.31) than those with the L'L' genotype. CONCLUSIONS: These findings suggest that Whites carrying the L' allele, African Americans and Native Americans with the S'S' genotype, and Asians carrying the S' allele will be found to be at higher risk of developing cardiovascular disease and may benefit from preventive measures.


Asunto(s)
Presión Sanguínea/genética , Hipertensión/genética , Proteínas de Transporte de Serotonina en la Membrana Plasmática/genética , Adulto , Negro o Afroamericano/genética , Pueblo Asiatico/genética , Femenino , Frecuencia de los Genes , Genotipo , Humanos , Hipertensión/epidemiología , Hipertensión/etnología , Indígenas Norteamericanos/genética , Modelos Lineales , Modelos Logísticos , Masculino , Persona de Mediana Edad , Oportunidad Relativa , Singapur/epidemiología , Estados Unidos/epidemiología , Población Blanca/genética
4.
Prev Sci ; 18(8): 955-963, 2017 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-28733854

RESUMEN

Orphaned adolescents are a large and vulnerable population in sub-Saharan Africa, at higher risk for HIV than non-orphans. Yet prevention of new infection is critical for adolescents since they are less likely than adults to enter and remain in treatment and are the only age group with rising AIDS death rates. We report process evaluation for a randomized controlled trial (RCT) testing support to stay in school (tuition, uniform, nurse visits) as an HIV prevention strategy for orphaned Kenyan adolescents. The RCT found no intervention effect on HIV/HSV-2 biomarker outcomes. With process evaluation, we examined the extent to which intervention elements were implemented as intended among the intervention group (N = 412) over the 3-year study period (2012-2014), the implementation effects on school enrollment (0-9 terms), and whether more time in school impacted HIV/HSV-2. All analyses examined differences as a whole, and by gender. Findings indicate that school fees and uniforms were fully implemented in 94 and 96% of cases, respectively. On average, participants received 79% of the required nurse visits. Although better implementation of nurse visits predicted more terms in school, a number of terms did not predict the likelihood of HIV/HSV-2 infection. Attending boarding school also increased number of school terms, but reduced the odds of infection for boys only. Four previous RCTs have been conducted in sub-Saharan Africa, and only one found limited evidence of school impact on adolescent HIV/HSV-2 infection. Our findings add further indication that the association between school support and HIV/HSV-2 prevention appears to be weak or under-specified.


Asunto(s)
Niños Huérfanos , Ensayos Clínicos como Asunto , Infecciones por VIH/prevención & control , Instituciones Académicas , Adolescente , Adulto , Niño , Femenino , Humanos , Kenia , Masculino , Factores de Riesgo , Adulto Joven
5.
Arch Sex Behav ; 45(2): 467-75, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26585167

RESUMEN

The present study compared the prevalence and variation in high-risk sexual behaviors among four monoracial (i.e., White, African American, Asian, Native American) and four multiracial (i.e., White/African American, White/Asian, White/Native American, African American/Native American) young adults using Wave IV data (2008-2009) from the National Longitudinal Study of Adolescent to Adult Health (N = 9724). Findings indicated differences in the sexual behavior of monoracial and multiracial young adults, but directions of differences varied depending on the monoracial group used as the referent and gender. Among males, White/African Americans had higher risk than Whites; White/Native Americans had higher risk than Native Americans. Otherwise, multiracial groups had lower risk or did not differ from the single-race groups. Among females, White/Native Americans had higher risk than Whites; White/African Americans had higher risk than African Americans. Other comparisons showed no differences or had lower risk among multiracial groups. Variations in high-risk sexual behaviors underscore the need for health research to disaggregate multiracial groups to better understand health behaviors and outcomes in the context of experiences associated with a multiracial background, and to improve prevention strategies.


Asunto(s)
Etnicidad/etnología , Grupos Minoritarios/estadística & datos numéricos , Conducta Sexual/etnología , Identificación Social , Adulto , Negro o Afroamericano/estadística & datos numéricos , Asiático/estadística & datos numéricos , Etnicidad/psicología , Femenino , Conductas Relacionadas con la Salud/etnología , Humanos , Estudios Longitudinales , Masculino , Prevalencia , Conducta Sexual/psicología , Estados Unidos/epidemiología , Población Blanca/estadística & datos numéricos , Adulto Joven
6.
J Youth Adolesc ; 45(5): 986-1002, 2016 May.
Artículo en Inglés | MEDLINE | ID: mdl-26979445

RESUMEN

Past evidence has documented that attitudes toward marriage and cohabitation are related to sexual behavior in adolescence and young adulthood. This study extends prior research by longitudinally testing these associations across racial/ethnic groups and investigating whether culturally relevant variations within racial/ethnic minority groups, such as skin tone (i.e., lightness/darkness of skin color), are linked to attitudes toward marriage and cohabitation and sex. Drawing on family and public health literatures and theories, as well as burgeoning skin tone literature, it was hypothesized that more positive attitudes toward marriage and negative attitudes toward cohabitation would be associated with less risky sex, and that links differed for lighter and darker skin individuals. The sample included 6872 respondents (49.6 % female; 70.0 % White; 15.8 % African American; 3.3 % Asian; 10.9 % Hispanic) from the National Longitudinal Study of Adolescent to Adult Health. The results revealed that marital attitudes had a significantly stronger dampening effect on risky sexual behavior of lighter skin African Americans and Asians compared with their darker skin counterparts. Skin tone also directly predicted number of partners and concurrent partners among African American males and Asian females. We discuss theoretical and practical implications of these findings for adolescence and young adulthood.


Asunto(s)
Etnicidad , Matrimonio/etnología , Conducta Sexual/etnología , Parejas Sexuales , Pigmentación de la Piel , Adolescente , Adulto , Actitud , Femenino , Humanos , Estudios Longitudinales , Masculino , Matrimonio/psicología , Pigmentación de la Piel/fisiología , Estados Unidos , Adulto Joven
7.
Matern Child Health J ; 19(11): 2438-52, 2015 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-26112751

RESUMEN

OBJECTIVE: To determine which combination of risk factors from Community Care of North Carolina's (CCNC) Pregnancy Medical Home (PMH) risk screening form was most predictive of preterm birth (PTB) by parity and race/ethnicity. METHODS: This retrospective cohort included pregnant Medicaid patients screened by the PMH program before 24 weeks gestation who delivered a live birth in North Carolina between September 2011-September 2012 (N = 15,428). Data came from CCNC's Case Management Information System, Medicaid claims, and birth certificates. Logistic regression with backward stepwise elimination was used to arrive at the final models. To internally validate the predictive model, we used bootstrapping techniques. RESULTS: The prevalence of PTB was 11 %. Multifetal gestation, a previous PTB, cervical insufficiency, diabetes, renal disease, and hypertension were the strongest risk factors with odds ratios ranging from 2.34 to 10.78. Non-Hispanic black race, underweight, smoking during pregnancy, asthma, other chronic conditions, nulliparity, and a history of a low birth weight infant or fetal death/second trimester loss were additional predictors in the final predictive model. About half of the risk factors prioritized by the PMH program remained in our final model (ROC = 0.66). The odds of PTB associated with food insecurity and obesity differed by parity. The influence of unsafe or unstable housing and short interpregnancy interval on PTB differed by race/ethnicity. CONCLUSIONS: Evaluation of the PMH risk screen provides insight to ensure women at highest risk are prioritized for care management. Using multiple data sources, salient risk factors for PTB were identified, allowing for better-targeted approaches for PTB prevention.


Asunto(s)
Etnicidad/estadística & datos numéricos , Paridad , Atención Dirigida al Paciente , Nacimiento Prematuro/epidemiología , Adolescente , Adulto , Certificado de Nacimiento , Femenino , Humanos , Recién Nacido , Modelos Logísticos , Estado Civil , Tamizaje Masivo , Medicaid , North Carolina/epidemiología , Valor Predictivo de las Pruebas , Embarazo , Prevalencia , Estudios Retrospectivos , Factores de Riesgo , Estados Unidos
8.
Demogr Res ; 32: 1081-1098, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-26146486

RESUMEN

BACKGROUND: With the emergence of obesity as a global health issue an increasing number of major demographic surveys are collecting measured anthropometric data. Yet little is known about the characteristics and reliability of these data. OBJECTIVES: We evaluate the accuracy and reliability of anthropometric data collected in the home during Wave IV of the National Longitudinal Study of Adolescent to Adult Health (Add Health), compare our estimates to national standard, clinic-based estimates from the National Health and Nutrition Examination Survey (NHANES) and, using both sources, provide a detailed anthropometric description of young adults in the United States. METHODS: The reliability of Add Health in-home anthropometric measures was estimated from repeat examinations of a random subsample of study participants. A digit preference analysis evaluated the quality of anthropometric data recorded by field interviewers. The adjusted odds of obesity and central obesity in Add Health vs. NHANES were estimated with logistic regression. RESULTS: Short-term reliabilities of in-home measures of height, weight, waist and arm circumference-as well as derived body mass index (BMI, kg/m2)-were excellent. Prevalence of obesity (37% vs. 29%) and central obesity (47% vs. 38%) was higher in Add Health than in NHANES while socio-demographic patterns of obesity and central obesity were comparable in the two studies. CONCLUSIONS: Properly trained non-medical field interviewers can collect reliable anthropometric data in a nationwide, home visit study. This national cohort of young adults in the United States faces a high risk of early-onset chronic disease and premature mortality.

9.
Am J Public Health ; 104(8): e125-32, 2014 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-24922164

RESUMEN

OBJECTIVES: We examined the impact of preconception acute and chronic stressors on offspring birth weight and racial/ethnic birth weight disparities. METHODS: We included birth weights for singleton live first (n = 3512) and second (n = 1901) births to White, Mexican-origin Latina, other-origin Latina, and Black women reported at wave IV of the National Longitudinal Study of Adolescent Health (2007-2008; ages 24-32 years). We generated factor scores for preconception acute and chronic stressors from wave I (1994-1995; ages 11-19 years) or wave III (2001-2002; ages 18-26 years) for the same cohort of women. RESULTS: Linear regression models indicated that chronic stressors, but not acute stressors, were inversely associated with birth weight for both first and second births (b = -192; 95% confidence interval = -270, -113; and b = -180; 95% confidence interval = -315, -45, respectively), and partially explained the disparities in birth weight between the minority racial/ethnic groups and Whites. CONCLUSIONS: Preconception chronic stressors contribute to restricted birth weight and to racial/ethnic birth weight disparities.


Asunto(s)
Peso al Nacer , Disparidades en el Estado de Salud , Estrés Psicológico/complicaciones , Adolescente , Adulto , Población Negra/estadística & datos numéricos , Niño , Femenino , Hispánicos o Latinos/estadística & datos numéricos , Humanos , Recién Nacido , Modelos Lineales , Estudios Longitudinales , Americanos Mexicanos/estadística & datos numéricos , Embarazo , Estados Unidos/epidemiología , Población Blanca/estadística & datos numéricos , Adulto Joven
10.
AIDS Behav ; 18(2): 311-6, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23612944

RESUMEN

Cash transfer programs have the potential to prevent the spread of HIV, particularly among adolescents. One mechanism through which these programs may work is by influencing the characteristics of the people adolescents choose as sex partners. We examined the four-year impact of a Kenyan cash transfer program on partner age, partner enrollment in school, and transactional sex-based relationships among 684 adolescents. We found no significant impact of the program on partner characteristics overall, though estimates varied widely by gender, age, schooling, and economic status. Results highlight the importance of context in exploring the potential HIV preventive effects of cash transfers.


Asunto(s)
Pobreza/prevención & control , Asistencia Pública/economía , Recompensa , Conducta Sexual/psicología , Parejas Sexuales , Adolescente , Factores de Edad , Estudios de Cohortes , Femenino , Humanos , Masculino , Motivación , Pobreza/economía , Evaluación de Programas y Proyectos de Salud , Conducta de Reducción del Riesgo , Instituciones Académicas , Factores Socioeconómicos
11.
Arch Sex Behav ; 43(2): 221-30, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23900992

RESUMEN

The emergence of partnered sexual behavior represents an important developmental transition. However, little is known about individuals who remain sexually inexperienced well into adulthood. We used data from 2,857 individuals who participated in Waves I-IV of the National Longitudinal Study of Adolescent Health (Add Health) and reported no sexual activity (i.e., oral-genital, vaginal, or anal sex) by age 18 to identify, using discrete-time survival models, adolescent sociodemographic, biosocial, and behavioral characteristics that predicted adult sexual inexperience. The mean age of participants at Wave IV was 28.5 years (SD = 1.92). Over one out of eight participants who did not initiate sexual activity during adolescence remained abstinent as young adults. Sexual non-attraction significantly predicted sexual inexperience among both males (aOR = 0.5) and females (aOR = 0.6). Males also had lower odds of initiating sexual activity after age 18 if they were non-Hispanic Asian, reported later than average pubertal development, or were rated as physically unattractive (aORs = 0.6-0.7). Females who were overweight, had lower cognitive performance, or reported frequent religious attendance had lower odds of sexual experience (aORs = 0.7-0.8) while those who were rated by the interviewers as very attractive or whose parents had lower educational attainment had higher odds of sexual experience (aORs = 1.4-1.8). Our findings underscore the heterogeneity of this unique population and suggest that there are a number of different pathways that may lead to either voluntary or involuntary adult sexual inexperience. Understanding the meaning of sexual inexperience in young adulthood may have important implications for the study of sexuality development across the life course.


Asunto(s)
Etnicidad/estadística & datos numéricos , Abstinencia Sexual/etnología , Abstinencia Sexual/estadística & datos numéricos , Adolescente , Conducta del Adolescente , Adulto , Coito , Femenino , Humanos , Estudios Longitudinales , Masculino , National Longitudinal Study of Adolescent Health , Prevalencia , Estudios Prospectivos , Factores Sexuales , Conducta Sexual/estadística & datos numéricos , Desarrollo Sexual , Parejas Sexuales , Factores Socioeconómicos , Estados Unidos/epidemiología , Adulto Joven
12.
BMC Womens Health ; 14: 27, 2014 Feb 13.
Artículo en Inglés | MEDLINE | ID: mdl-24521075

RESUMEN

BACKGROUND: Internet surveys that draw from traditionally generated samples provide the unique conditions to engage adolescents in exploration of sensitive health topics. METHODS: We examined awareness of unwanted pregnancy, abortion behaviour, methods, and attitudes toward specific legal indications for abortion via a school-based internet survey among 378 adolescents aged 12-21 years in three Rio de Janeiro public schools. RESULTS: Forty-five percent knew peers who had undergone an abortion. Most students (66.0%) did not disclose abortion method knowledge. However, girls (aOR 4.2, 95% CI 2.4-7.2), those who had experienced their sexual debut (aOR1.76, 95% CI 1.1-3.0), and those attending a prestigious magnet school (aOR 2.7 95% CI 1.4-6.3) were more likely to report methods. Most abortion methods (79.3%) reported were ineffective, obsolete, and/or unsafe. Herbs (e.g. marijuana tea), over-the-counter medications, surgical procedures, foreign objects and blunt trauma were reported. Most techniques (85.2%) were perceived to be dangerous, including methods recommended by the World Health Organization. A majority (61.4%) supported Brazil's existing law permitting abortion in the case of rape. There was no association between gender, age, sexual debut, parental education or socioeconomic status and attitudes toward legal abortion. However, students at the magnet school supported twice as many legal indications (2.7, SE.27) suggesting a likely role of peers and/or educators in shaping abortion views. CONCLUSIONS: Abortion knowledge and attitudes are not driven simply by age, religion or class, but rather a complex interplay that includes both social spaces and gender. Prevention of abortion morbidity and mortality among adolescents requires comprehensive sexuality and reproductive health education that includes factual distinctions between safe and unsafe abortion methods.


Asunto(s)
Aborto Inducido , Conocimientos, Actitudes y Práctica en Salud , Grupo Paritario , Embarazo en Adolescencia , Adolescente , Brasil , Niño , Femenino , Humanos , Internet , Masculino , Embarazo , Embarazo no Deseado , Instituciones Académicas , Factores Sexuales , Factores Socioeconómicos , Encuestas y Cuestionarios , Adulto Joven
13.
Am J Public Health ; 103 Suppl 1: S25-32, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23927505

RESUMEN

The influence of genetic factors on health and behavior is conditioned by social, cultural, institutional, and physical environments in which individuals live, work, and play. We encourage studies supporting multilevel integrative approaches to understanding these contributions to health, and describe the Add Health study as an exemplar. Add Health is a large sample of US adolescents in grades 7 to 12 in 1994-1995 followed into adulthood with 4 in-home interviews and biomarker collections, including DNA. In addition to sampling multiple environments and measuring diverse social and health behavior, Add Health features a fully articulated behavioral genetic sample (3000 pairs) and ongoing genotyping of 12,000 archived samples. We illustrate approaches to understanding health through investigation of the interplay among biological, psychosocial, and physical, contextual, or cultural experiences.


Asunto(s)
Conducta del Adolescente , Conducta , Ligamiento Genético , Medio Social , Adolescente , Adulto , Niño , Femenino , Interacción Gen-Ambiente , Genotipo , Humanos , Entrevistas como Asunto , Estudios Longitudinales , Masculino , Fenotipo , Estudios Prospectivos , Asunción de Riesgos , Encuestas y Cuestionarios , Adulto Joven
14.
Twin Res Hum Genet ; 16(1): 391-8, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23231780

RESUMEN

This article describes the design and phenotype and genotype data available for sibling pairs with varying genetic relatedness in the National Longitudinal Study of Adolescent Health (Add Health). Add Health is a nationally representative longitudinal study of over 20,000 adolescents in the United States in 1994-1995 who have been followed for 15 years into adulthood. The Add Health design included oversamples of more than 3,000 pairs of individuals with varying genetic resemblance, ranging from monozygotic twins, dizygotic twins, full siblings, half siblings, and unrelated siblings who were raised in the same household. Add Health sibling pairs are therefore nationally representative and followed longitudinally from early adolescence into adulthood with four in-home interviews during the period 1994-2009. Add Health has collected rich longitudinal social, behavioral, environmental, and biological data, as well as buccal cell DNA from all sample members, including sibling pairs. Add Health has an enlightened dissemination policy and to date has released phenotype and genotype data to more than 10,000 researchers in the scientific community.


Asunto(s)
Enfermedades en Gemelos/epidemiología , Interacción Gen-Ambiente , Sistema de Registros , Hermanos , Gemelos Dicigóticos/genética , Gemelos Monocigóticos/genética , Adolescente , Adulto , Enfermedades en Gemelos/genética , Diseño de Investigaciones Epidemiológicas , Femenino , Genética Conductual , Genotipo , Humanos , Estudios Longitudinales , Masculino , North Carolina/epidemiología , Fenotipo , Medio Social , Adulto Joven
15.
Matern Child Health J ; 17(10): 1951-60, 2013 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-23340952

RESUMEN

The objective of this study is to examine the association between physical and sexual violence exposure and somatic symptoms among female adolescents. We studied a nationally representative sample of 8,531 females, aged 11-21 years, who participated in the 1994-1995 Wave I of the National Longitudinal Study of Adolescent Health (Add Health). Female adolescents were asked how often they had experienced 16 specific somatic symptoms during the past 12 months. Two summary categorical measures were constructed based on tertiles of the distributions for the entire female sample: (a) total number of different types of symptoms experienced, and (b) number of frequent (once a week or more often) different symptoms experienced. Groups were mutually exclusive. We examined associations between adolescents' violence exposure and somatic symptoms using multinomial logistic regression analyses. About 5 % of adolescent females reported both sexual and non-sexual violence, 3 % reported sexual violence only, 36 % reported non-sexual violence only, and 57 % reported no violence. Adolescents who experienced both sexual and non-sexual violence were the most likely to report many different symptoms and to experience very frequent or chronic symptoms. Likelihood of high symptomatology was next highest among adolescents who experienced sexual violence only, followed by females who experienced non-sexual violence only. Findings support an exposure-response association between violence exposure and somatic symptoms, suggesting that symptoms can be markers of victimization. Treating symptoms alone, without addressing the potential violence experienced, may not adequately improve adolescents' somatic complaints and well-being.


Asunto(s)
Delitos Sexuales/estadística & datos numéricos , Conducta Sexual/estadística & datos numéricos , Trastornos Somatomorfos/epidemiología , Violencia/estadística & datos numéricos , Adolescente , Niño , Estudios Transversales , Femenino , Humanos , Estudios Longitudinales , National Longitudinal Study of Adolescent Health , Análisis de Regresión , Factores de Riesgo , Delitos Sexuales/psicología , Conducta Sexual/psicología , Parejas Sexuales , Trastornos Somatomorfos/etiología , Estados Unidos , Violencia/psicología , Adulto Joven
16.
Am J Public Health ; 102(6): 1221-8, 2012 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-22571710

RESUMEN

OBJECTIVES: We documented the prevalence and relative timing of oral-genital, vaginal, and anal intercourse during adolescence and examined whether these timetables varied by sociodemographic factors. METHODS: We used data from almost 14 ,000 Wave IV respondents to the National Longitudinal Study of Adolescent Health to generate prevalence estimates for adolescents who reached age 18 years by 2001 and logistic and ordinary least squares regression to examine sociodemographic correlates of sexual patterns. RESULTS: One in 5 adolescents did not engage in any of these sexual behaviors by age 18 years. More than two thirds reported vaginal or oral-genital sexual activity, but only about half experienced both. One in 10 reported anal intercourse experience. A third initiated 2 or more behaviors within a 1-year period. In longer timetables, vaginal intercourse was more often initiated first. Most sociodemographic characteristics examined were uniquely associated with prevalence and sexual timing. CONCLUSIONS: Diversity in patterns of sexual initiation occurring in the 1990s underscores the ongoing need for comprehensive and nuanced examinations of adolescent sexual trajectories and their implications for sexual health in more recent cohorts.


Asunto(s)
Conducta del Adolescente , Conducta Sexual/estadística & datos numéricos , Adolescente , Estudios de Cohortes , Coito , Escolaridad , Etnicidad , Composición Familiar , Humanos , Estudios Longitudinales , Prevalencia , Estudios Prospectivos , Factores Sexuales , Conducta Sexual/etnología , Factores de Tiempo , Estados Unidos/epidemiología
17.
Behav Brain Sci ; 35(5): 367, 2012 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23095388

RESUMEN

More than 40 years ago, Gilbert Gottlieb and like-minded scholars argued for the philosophical necessity of approaching genetic contributions to development through a multilevel, bidirectional systems perspective. Charney's target article builds on this heritage in significant ways, offering more recent examples of the interactions of biology and context, as well as the diversity of developmental mechanisms, and reaffirming a way forward for genetic research.


Asunto(s)
Genética Conductual , Genómica , Femenino , Humanos , Embarazo
18.
Violence Vict ; 27(4): 527-47, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-22978073

RESUMEN

This study examined whether alcohol outlet density is associated with male physical and sexual victimization by a female partner. Data were from the National Longitudinal Study of Adolescent Health (Add Health). A total of 3,179 young adult men identified a current heterosexual relationship and had complete intimate partner violence (IPV) victimization data. Almost 16% of this sample reported being the victim of physical only IPV in their relationship over the previous 12 months; an additional 6.4% were victims of sexual only or sexual and physical IPV. Multivariate analyses indicated high alcohol outlet density was associated with greater odds of experiencing physical IPV only (odds ratio [OR] = 2.07). Heavy drinkers experienced increased odds of physical and sexual IPV victimization. Alcohol outlet density should be addressed in prevention efforts.


Asunto(s)
Consumo de Bebidas Alcohólicas/epidemiología , Bebidas Alcohólicas/estadística & datos numéricos , Víctimas de Crimen/estadística & datos numéricos , Heterosexualidad/estadística & datos numéricos , Características de la Residencia/estadística & datos numéricos , Maltrato Conyugal/estadística & datos numéricos , Adolescente , Agresión/efectos de los fármacos , Consumo de Bebidas Alcohólicas/psicología , Comercio/estadística & datos numéricos , Víctimas de Crimen/psicología , Femenino , Heterosexualidad/psicología , Humanos , Relaciones Interpersonales , Masculino , North Carolina/epidemiología , Factores de Riesgo , Maltrato Conyugal/psicología , Adulto Joven
19.
J Adolesc Health ; 68(5): 991-998, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33036875

RESUMEN

PURPOSE: This study aimed to examine the lifetime and pre-18 sexual partnering patterns of populations with physical disabilities from adolescence to early adulthood and how these patterns further vary by biological sex, race/ethnicity, and sexual orientation. METHODS: Data were from 13,458 respondents to Waves I and IV of the National Longitudinal Study of Adolescent to Adult Health. Poisson regression models were used to assess differences in pre-18 and lifetime sexual partner counts among populations with physical disabilities compared with those without disabilities. Moderation analyses by biological sex, race/ethnicity, and sexual orientation were used to consider further differences among minority subgroups. RESULTS: The results indicated more similarities than differences in sexual partnering patterns across disability severity groups. Specifically, populations with disabilities had just as many pre-18 and lifetime sexual partners as peers without disabilities. There was variation by biological sex, race/ethnicity, and sexual orientation, although this was not tied to disability status. CONCLUSIONS: These results fill an important gap in the literature by considering the sexual partnering behaviors of populations with physical disabilities in the U.S. over the life course. Future research should continue to include populations with disabilities and other minority groups to ensure that their experiences are represented in sexual health policies and programs.


Asunto(s)
Personas con Discapacidad , Salud Sexual , Adolescente , Adulto , Femenino , Humanos , Estudios Longitudinales , Masculino , Conducta Sexual , Parejas Sexuales
20.
Prev Med ; 51(6): 502-4, 2010 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-20851142

RESUMEN

OBJECTIVE: Previous research shows reduced cervical and breast cancer screening among women with physical disabilities. However, other indicators of reproductive health have been largely ignored. We aimed to compare the reproductive health of young adults in the U.S. with and without physical disabilities in a nationally-representative sample. METHODS: Data are from 13,819 respondents aged 18-26 who participated in Waves I (1994-1995) and III (2001-2002) of the National Longitudinal Study of Adolescent Health (Add Health). Using logistic regression, we examined associations between physical disability and multiple reproductive health indicators including sexually transmitted infection (STI) testing, STI diagnosis, receipt of a gynecologic exam, and cervical cancer screening. Analyses were stratified by sex and adjusted for the complex study design. RESULTS: We identified 5.8% of respondents as having a physical disability. In multivariate analyses, females with physical disabilities had lower odds of having a Pap smear in the past 12 months than females without disabilities (OR=0.77; 95% CI: 0.61, 0.97). Physical disability was not associated with other reproductive health indicators among females or males. CONCLUSION: We found few differences in examined reproductive health indicators of young adults with and without physical disabilities, but findings suggest differences in some screening services that merit additional study.


Asunto(s)
Personas con Discapacidad , Reproducción/fisiología , Adolescente , Adulto , Femenino , Encuestas Epidemiológicas , Humanos , Masculino , Servicios de Salud Reproductiva , Estados Unidos , Adulto Joven
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