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1.
Prev Med ; 169: 107455, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36804566

RESUMEN

Violence victimization has been associated with low-grade inflammation. Lesbian, Gay, and Bisexual (LGB) individuals are at greater risk for victimization in childhood and young adulthood compared to heterosexuals. Moreover, the intersection of LGB identity with gender, race/ethnicity, and educational attainment may be differentially associated with victimization rates. However, no previous study has examined the role of cumulative life-course victimization during childhood and young adulthood in the association between 1) LGB identity and low-grade inflammation during the transition to midlife, and 2) intersection of LGB identity with gender, race/ethnicity, and educational attainment and low-grade inflammation during the transition to midlife. We utilized multi-wave data from a national sample of adults entering midlife in the United States- the National Longitudinal Study of Adolescent to Adult Health (Add Health; n = 4573) - and tested four bootstrapped mediation models. Results indicate LGB identity, LGB and White, and LGB and Black identities were indirectly associated with low-grade inflammation during the transition to midlife via higher levels of cumulative life-course victimization. Moreover, among LGB adults, the association between 1) less than college education and 2) some college education, and low-grade inflammation was mediated by cumulative life-course victimization. For LGB females, there was a direct association between identity and low-grade inflammation and this association was mediated by cumulative life-course victimization . Reducing accumulation of victimization could be critical for preventing biological dysregulation and disease onset among LGB individuals, particularly for those with multiple marginalized identities.


Asunto(s)
Víctimas de Crimen , Minorías Sexuales y de Género , Adulto , Adolescente , Humanos , Femenino , Masculino , Estados Unidos/epidemiología , Adulto Joven , Etnicidad , Estudios Longitudinales , Conducta Sexual , Escolaridad , Inflamación
2.
Soc Sci Res ; 96: 102538, 2021 05.
Artículo en Inglés | MEDLINE | ID: mdl-33867009

RESUMEN

Self-rated health (SRH) is one of the most important social science measures of health. Yet its measurement properties remain poorly understood. Most studies ignore the measurement error in SRH despite the bias resulting from even random measurement error. Our goal is to estimate the measurement reliability of SRH in contemporaneous, retrospective, and proxy indicators. We use the National Longitudinal Study of Adolescent to Adult Health to estimate the reliability of SRH relative to proxy assessments and respondents' recollections of past health. Even the best indicators - contemporaneous self-reports - have a modest reliability of ~0.6; retrospective and proxy assessments fare much worse, with reliability less than 0.2. Moreover, not correcting for measurement error in SRH leads to a ~20-40% reduction in its correlation with other measures of health. Researchers should be skeptical of analyses that treat these subjective reports as explanatory variables and fail to take account of their substantial measurement error.


Asunto(s)
Autoevaluación Diagnóstica , Estado de Salud , Adolescente , Adulto , Humanos , Estudios Longitudinales , Reproducibilidad de los Resultados , Estudios Retrospectivos
3.
Child Dev ; 91(5): 1650-1662, 2020 09.
Artículo en Inglés | MEDLINE | ID: mdl-31967335

RESUMEN

This study used population-representative data to examine associations of risk and protective factor patterns among Alaska Native/American Indian (AN/AI; N = 592) and non-Native (N = 1,018) children with maternal and child outcomes at age 3 years. Among AN/AI children, a high risk/moderate protection class was associated with child developmental risk and mothers being less likely to feel comfortable asking for help or knowing where to go for parenting information compared to a low socioeconomic status/high protection class. Among non-Native children, a moderate risk/high protection class was associated with child developmental risk and mothers being less likely to feel comfortable asking for help compared to a low risk/high protection class. Results provide insight on the intersection of risk and protective factors among Alaska families.


Asunto(s)
Desarrollo Infantil , Salud Infantil , Adulto , Alaska , Niño , Preescolar , Femenino , Humanos , Estudios Longitudinales , Masculino , Madres/psicología , Factores Protectores , Factores de Riesgo
4.
Nurs Res ; 69(6): 436-447, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32969948

RESUMEN

BACKGROUND: Much remains unknown about the longitudinal health and well-being of individuals with intellectual disability (ID); thus, new methods to identify those with ID within nationally representative population studies are critical for harnessing these data sets to generate new knowledge. OBJECTIVE: Our objective was to describe the development of a new method for identifying individuals with ID within large, population-level studies not targeted on ID. METHODS: We used a secondary analysis of the de-identified, restricted-use National Longitudinal Study of Adolescent to Adult Health (Add Health) database representing 20,745 adolescents to develop a method for identifying individuals who meet the criteria of ID. The three criteria of ID (intellectual functioning, adaptive functioning, and disability originating during the developmental period) were derived from the definitions of ID used by the American Psychiatric Association and the American Association on Intellectual and Developmental Disabilities. The ID Indicator was developed from the variables indicative of intellectual and adaptive functioning limitations included in the Add Health database from Waves I to III. RESULTS: This method identified 441 adolescents who met criteria of ID and had sampling weights. At Wave I, the mean age of this subsample of adolescents with ID was 16.1 years. About half of the adolescents were male and from minority racial groups. Their parents were predominately female, were married, had less than a high school education, and had a median age of 41.62 years. The adolescents' mean maximum abridged Peabody Picture Vocabulary Test standardized score was 69.6, and all demonstrated at least one adaptive functioning limitation. DISCUSSION: This study demonstrates the development of a data-driven method to identify individuals with ID using commonly available data elements in nationally representative population data sets. By utilizing this method, researchers can leverage existing rich data sets holding potential for answering research questions, guiding policy, and informing interventions to improve the health of the ID population.


Asunto(s)
Discapacidad Intelectual/epidemiología , Salud Mental/estadística & datos numéricos , Personas con Discapacidades Mentales/estadística & datos numéricos , Adaptación Psicológica , Adolescente , Adulto , Atención/fisiología , Cognición/fisiología , Femenino , Humanos , Discapacidad Intelectual/psicología , Estudios Longitudinales , Masculino , Trastornos Mentales/epidemiología , Personas con Discapacidades Mentales/psicología , Factores de Riesgo
5.
Matern Child Health J ; 24(1): 82-89, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31664693

RESUMEN

OBJECTIVES: Our objective was to identify preconception and prenatal predictors of early experiences of co-occurring risk and protective factors to help target prevention efforts to the highest-need families prior to the birth of the child. METHODS: Data were from the Alaska Longitudinal Child Abuse and Neglect Linkage project and the 2012-2014 Alaska Child Understanding Behaviors Survey. We used latent class analysis and Vermunt's three-step approach to examine predictors of latent classes of risk and protective factors among Alaska children. RESULTS: Among children of Alaska Native/American Indian mothers, financial (OR 2.02, 95% CI 1.04, 3.90) and partner stress (OR 2.06, 95% CI 1.02, 4.10) prior to childbirth, maternal education < 12 years (OR 2.29, 95% CI 1.05, 4.96), and maternal substance use (OR 2.52, 95% CI 1.30, 4.89) were associated with a higher likelihood of membership in a high risk/moderate protection class as compared to a low socioeconomic status/high protection class. Among children of non-Native mothers, partner stress prior to childbirth (OR 3.92, 95% CI 1.08, 14.19), maternal education < 12 years (OR 2.69, 95% CI 1.24, 5.81), maternal substance use (OR 2.69, 95% CI 1.24, 5.81), younger maternal age (OR 0.87, 95% CI 0.80, 0.95), and a greater number of children (OR 1.62, 95% CI 1.09, 2.41) were associated with a higher likelihood of membership in a moderate risk/high protection class as compared to a low risk/moderate protection class. CONCLUSIONS: Results can inform eligibility criteria for prenatal home visiting programs and prenatal screening in Alaska to ensure prevention programming and referrals are directed to families most in need of additional support.


Asunto(s)
/estadística & datos numéricos , Maltrato a los Niños/prevención & control , Indígenas Norteamericanos/estadística & datos numéricos , Madres/psicología , Atención Preconceptiva , Atención Prenatal , Alaska , Preescolar , Femenino , Humanos , Recién Nacido , Edad Materna , Factores Protectores , Medición de Riesgo
6.
Prev Sci ; 21(1): 86-97, 2020 01.
Artículo en Inglés | MEDLINE | ID: mdl-31773468

RESUMEN

Currently, little is known about patterns of co-occurring risk and protective factors among young children. Understanding variations in co-occurring risk and protective factors among children in Alaska is important as experiences of collective trauma may contribute to differences in the intersection of risk and protective factors between Alaska Native/American Indian (AN/AI) and non-Native children. Using data from the Alaska Longitudinal Child Abuse and Neglect Linkage (ALCANLink) project, a linkage of the 2009-2011 Alaska Pregnancy Risk Assessment Monitoring System survey and administrative data sources, and the 2012-2014 Childhood Understanding Behaviors Survey, we conducted latent class analysis to identify classes of AN/AI (N = 593) and non-Native (N = 1018) children in terms of seven risk factors (poverty, maternal depression, maternal binge drinking, parental incarceration, intimate partner violence exposure, other violence exposure, child maltreatment) and four protective factors (father figure involvement, reading by adults, family meals, peer interactions) experienced prior to age 3 years. We identified two classes among AN/AI children: (1) high risk-moderate protection (29.1%) and (2) low socioeconomic status-high protection (70.9%). We identified two classes among non-Native children: (1) moderate risk-high protection (32.9%) and (2) low risk-high protection (67.1%). A test of invariance revealed that risk and protective factor probabilities differed significantly for corresponding classes of AN/AI and non-Native children. Overall, results demonstrate heterogeneity within and between AN/AI and non-Native children in early experiences of risk and protection and suggest that interventions will be more effective if tailored to the experiences and developmental needs of specific groups of Alaska children.


Asunto(s)
Desarrollo Infantil , Indígenas Norteamericanos , Factores de Riesgo , Preescolar , Humanos , Lactante , Recién Nacido , Análisis de Clases Latentes , Factores Protectores , Encuestas y Cuestionarios
7.
Int J Obes (Lond) ; 43(5): 1113-1119, 2019 05.
Artículo en Inglés | MEDLINE | ID: mdl-30206334

RESUMEN

BACKGROUND: A single measure that distills complex body mass index (BMI) trajectories into one value could facilitate otherwise complicated analyses. This study creates and assesses the validity of such a measure: average excess BMI. METHODS: We use data from Waves I-IV of the National Longitudinal Study of Adolescent to Adult Health (n = 17,669). We calculate average excess BMI by integrating to find the area above a healthy BMI trajectory and below each subject-specific trajectory and divide this value by total study time. To assess validity and utility, we (1) evaluate relationships between average excess BMI from adolescence to adulthood and adult chronic conditions, (2) compare associations and fit to models using subject-specific BMI trajectory parameter estimates as predictors, and (3) compare associations to models using BMI trajectory parameter estimates as outcomes. RESULTS: Average excess BMI from adolescence to adulthood is associated with increased odds of hypertension (OR = 1.56; 95% CI: 1.47, 1.67), hyperlipidemia (OR = 1.36; 95% CI: 1.26, 1.47), and diabetes (OR = 1.57; 95% CI: 1.47, 1.67). The odds associated with average excess BMI are higher than the odds associated with the BMI intercept, linear, or quadratic slope. Correlations between observed and predicted health outcomes are slightly lower for some models using average excess BMI as the focal predictor compared to those using BMI intercept, linear, and quadratic slope. When using trajectory parameters as outcomes, some co-variates associate with the intercept, linear, and quadratic slope in contradicting directions. CONCLUSIONS: This study supports the utility of average excess BMI as an outcome. The higher an individual's average excess BMI from adolescence to adulthood, the greater their odds of chronic conditions. Future studies investigating longitudinal BMI as an outcome should consider using average excess BMI, whereas studies that conceptualize longitudinal BMI as the predictor should continue using traditional latent growth methods.


Asunto(s)
Índice de Masa Corporal , Enfermedad Crónica/epidemiología , Obesidad Infantil/complicaciones , Adiposidad , Adolescente , Salud del Adolescente , Adulto , Biomarcadores/metabolismo , Femenino , Humanos , Masculino , National Longitudinal Study of Adolescent Health , Obesidad Infantil/metabolismo , Obesidad Infantil/fisiopatología , Adulto Joven
8.
Am J Public Health ; 109(5): 774-780, 2019 05.
Artículo en Inglés | MEDLINE | ID: mdl-30969834

RESUMEN

OBJECTIVES: To test whether indicators of despair are rising among US adults as they age toward midlife and whether this rise is concentrated among low-educated Whites and in rural areas. METHODS: We used data from the National Longitudinal Study of Adolescent to Adult Health, a nationally representative study of US adolescents in 1994. Our sample was restricted to individuals who participated in 1 or more of 5 waves (1994-2017) and self-identified as non-Hispanic White, non-Hispanic Black, or Hispanic (n = 18 446). We examined change in indicators of despair from adolescence to adulthood using multilevel regression analysis, testing for differences by race/ethnicity, education, and rurality. RESULTS: We found evidence of rising despair among this cohort over the past decade. This increase was not restricted to low-educated Whites or to rural areas. CONCLUSIONS: Results suggest that generally rising despair among the young adult cohort now reaching midlife that cuts across racial/ethnic, educational, and geographic groups may presage rising midlife mortality for these subgroups in the next decade.


Asunto(s)
Actitud Frente a la Salud/etnología , Depresión/etnología , Etnicidad/estadística & datos numéricos , Adaptación Psicológica , Adulto , Estudios de Cohortes , Femenino , Estado de Salud , Humanos , Estudios Longitudinales , Masculino , Factores Socioeconómicos , Estados Unidos , Adulto Joven
9.
Child Dev ; 90(1): e132-e147, 2019 01.
Artículo en Inglés | MEDLINE | ID: mdl-29574690

RESUMEN

The present study tests the assumption that peers wield sufficient influence to induce sexual homophily (i.e., similarities in sexual experiences). Because girls face greater stigma for their sexual experiences than do boys, sexual homophily may be greater in girls' friendship networks than in boys'. Stochastic actor-based models were used to analyze network data (n = 2,566; ages 14-18) from two high schools in the National Longitudinal Study of Adolescent to Adult Health. Sexual homophily was present in friendship networks. Girls and boys were equally susceptible to their friends' influence, but the former exhibited a stronger preference for befriending same sexual debut status peers than the latter. The findings suggest that adolescents-particularly girls-"curate" their networks to minimize peer ostracism.


Asunto(s)
Conducta del Adolescente/psicología , Amigos/psicología , Conducta Sexual , Adolescente , Femenino , Humanos , Estudios Longitudinales , Masculino , Grupo Paritario , Instituciones Académicas , Identificación Social , Red Social
10.
Child Youth Serv Rev ; 100: 214-220, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-31885412

RESUMEN

An unhealthy body mass index (BMI) trajectory can exacerbate the burdens associated with child maltreatment. However, we have yet to explain why the relationship between maltreatment and BMI trajectories exists and what allows individuals to attain healthy BMI trajectories despite adversity. Guided by the Transactional Model of Stress and Coping, we evaluated (1) if peer friendship and adult mentors moderate, and (2) if impulsivity and depressive symptoms mediate, the relationship between maltreatment experiences and average excess BMI. We used data from four waves of the National Longitudinal Study of Adolescent to Adult Health (n = 17,696), following adolescents from ages 13-21 (Wave I) to 24-31 years (Wave IV). We did not find evidence of significant moderation or mediation of the maltreatment experience to average excess BMI relationship. However, models did demonstrate a relationship between peer friendship quality and average excess BMI, such that higher quality protected against higher average excess BMI (B = -0.073, s.e. = 0.02, p < 0.001). Age of maltreatment onset was also associated with average excess BMI, such that maltreatment onset in adolescence was associated with a higher average excess BMI (B = 0.275-0.284, s.e. = 0.11, p = 0.01). Although we found no evidence of moderation by social support or mediation by stress responses of the relationship between maltreatment experiences and average excess BMI, peer friendship appears to protect against higher average excess BMI from adolescence to young adulthood for all adolescents. Future public health interventions should consider how to leverage friendship in obesity prevention efforts.

11.
Arch Sex Behav ; 47(6): 1791-1810, 2018 08.
Artículo en Inglés | MEDLINE | ID: mdl-29594701

RESUMEN

The goal of this study was to examine, in a nationally representative sample, relationships between various sexual initiation patterns, subsequent sexual partnerships, and related health outcomes from adolescence through early adulthood. Data were from a subset of 6587 respondents from the National Longitudinal Study of Adolescent to Adult Health. Bivariate analyses and adjusted logistic and ordinary least squares regression models were used to determine associations between membership in three sexual initiation classes, lifetime sexual partner counts, and multiple health outcomes, including lifetime sexually transmitted infection or disease (STI/STD) diagnosis, lifetime unintended pregnancy, and romantic relationship quality. Broadly, having fewer lifetime sexual partners was associated with lower odds of STI/STD diagnosis and unintended pregnancy, and better relationship quality; however, findings also indicated both within and between sexual initiation class differences in the relationship between lifetime sexual partners and all three health outcomes. In particular, results showed little variation in health outcomes by sexual partnering among those who postponed sexual activity, but members of the class characterized by early and atypical sexual initiation patterns who had fewer lifetime partners exhibited better health outcomes than most other initiation groups. These results show that while both sexual initiation and partnering patterns add important information for understanding sexual health from adolescence to early adulthood, partnering may be more relevant to these sexual health outcomes. Findings indicate a need for more comprehensive sexuality education focused on sexual risk reduction and promotion of relationship skills among adolescents and adults.


Asunto(s)
Conducta del Adolescente/psicología , Salud Reproductiva/estadística & datos numéricos , Conducta Sexual/estadística & datos numéricos , Salud Sexual/estadística & datos numéricos , Parejas Sexuales/psicología , Adolescente , Adulto , Factores de Edad , Femenino , Humanos , Estudios Longitudinales , Masculino , Embarazo , Abstinencia Sexual/estadística & datos numéricos , Enfermedades de Transmisión Sexual/epidemiología , Factores Socioeconómicos
12.
BMC Womens Health ; 18(1): 178, 2018 10 29.
Artículo en Inglés | MEDLINE | ID: mdl-30373570

RESUMEN

BACKGROUND: Evidence suggests that gender equality positively influences family planning. However, the evidence from urban Africa is sparse. This study aimed to examine the association between changes in gender norms and modern contraceptive use over time among women in urban Nigeria. METHODS: Data were collected in 2010/2011 from 16,118 women aged 15-49 living in six cities in Nigeria (Abuja, Benin, Ibadan, Ilorin, Kaduna, and Zaria) and again in 2014 from 10,672 of the same women (34% attrition rate). The analytical sample included 9933 women living in 480 neighborhoods. A four-category outcome variable measured their change in modern contraceptive use within the study period. The exposure variables measured the changes in the level of gender-equitable attitudes towards: a) wife beating; b) household decision-making; c) couples' family planning decisions; and d) family planning self-efficacy. Multilevel multinomial logistic regression models estimated the associations between the exposure variables at the individual and neighborhood levels and modern contraceptive use controlling for the women's age, education, marital status, religion, parity, household wealth, and city of residence. RESULTS: The proportion of women who reported current use of modern contraceptive methods increased from 21 to 32% during the four-year study period. At both surveys, 58% of the women did not report using modern contraceptives while 11% reported using modern contraceptives; 21% did not use in 2010/2011 but started using by 2014 while 10% used in 2010/2011 but discontinued use by 2014. A positive change in the gender-equitable attitudes towards household decision-making, couples' family planning decisions, and family planning self-efficacy at the individual and neighborhood levels were associated with increased relative probability of modern contraceptive use (adoption and continued use) and decreased relative probability of modern contraceptive discontinuation by 2014. No such associations were found between the individual and neighborhood attitudes towards wife beating and modern contraceptive use. Accounting for the individual and neighborhood gender-equitable attitudes and controlling for the women's demographic characteristics accounted for 55-61% of the variation between neighborhoods in the change in modern contraceptive use during the study period. CONCLUSION: Interventions that promote gender equality have the potential to increase modern contraceptive use in Nigerian cities.


Asunto(s)
Conducta Anticonceptiva/estadística & datos numéricos , Conducta Anticonceptiva/tendencias , Anticoncepción/estadística & datos numéricos , Anticoncepción/tendencias , Servicios de Planificación Familiar/estadística & datos numéricos , Servicios de Planificación Familiar/tendencias , Normas Sociales , Adolescente , Adulto , Conducta Anticonceptiva/psicología , Servicios de Planificación Familiar/métodos , Femenino , Predicción , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Nigeria , Embarazo , Adulto Joven
13.
Prev Sci ; 19(4): 427-436, 2018 05.
Artículo en Inglés | MEDLINE | ID: mdl-28849338

RESUMEN

Male perpetration of intimate partner violence (IPV) against women in sub-Saharan Africa is widespread. Theory and empirical evidence suggest peer networks may play an important role in shaping IPV perpetration, though research on this topic in the region is limited. We assessed the degree to which peer network gender norms are associated with Tanzanian men's perpetration of IPV and examined whether the social cohesion of peer networks moderates this relationship. Using baseline data from sexually active men (n = 1103) nested within 59 peer networks enrolled in an on-going cluster-randomized HIV and IPV prevention trial, we fit multilevel logistic regression models to examine peer network-level factors associated with past-year physical IPV perpetration. Peer network gender norms were significantly associated with men's risk of perpetrating IPV, even after adjusting for their own attitudes toward gender roles (OR = 1.53 , p = . 04). Peer network social cohesion moderated this relationship (OR = 1.50 , p = . 04); the positive relationship between increasingly inequitable (i.e., traditional) peer network gender norms and men's risk of perpetrating IPV became stronger, as peer network social cohesion increased. Characteristics of the peer network context are associated with men's IPV perpetration and should be targeted in future interventions. While many IPV prevention interventions focus on changing individual attitudes, our findings support a unique approach, focused on transforming the peer context.


Asunto(s)
Identidad de Género , Violencia de Pareja/prevención & control , Grupo Paritario , Normas Sociales , Población Urbana , Adolescente , Adulto , Infecciones por VIH/prevención & control , Humanos , Modelos Logísticos , Masculino , Ensayos Clínicos Controlados Aleatorios como Asunto , Tanzanía , Adulto Joven
14.
Child Youth Serv Rev ; 93: 196-202, 2018 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-30745712

RESUMEN

This study examines the relationship between childhood maltreatment experiences and body mass index (BMI) over time. Using data from the National Longitudinal Study of Adolescent to Adult Health, we use latent profile analysis to create child maltreatment experience classes and latent growth modeling to understand how classes relate to BMI trajectories from adolescence to early adulthood. The best-fitting model suggests four child maltreatment experience classes: 1) poly-maltreatment (n=607); 2) physical abuse (n=1,578); 3) physical abuse and neglect (n=345); and 4) no childhood maltreatment (n=4,188). Class membership differentially predicts BMI trajectories, such that individuals in the no maltreatment, physical abuse, and physical abuse plus neglect classes exhibit the most stable BMI, and individuals in the poly-maltreatment class increase most rapidly (Χ2[9]=149.9, p < 0.001). Individuals in the poly-maltreatment class experience significantly higher BMI over time compared to the other three classes. In addition to overall growth differing between classes, there is substantial inter-individual variability in BMI trajectories within each class. Because BMI trajectories differ across different childhood maltreatment experiences-and substantial variability in BMI trajectories exists within these different experiences-future analyses should investigate mediators and moderators of this relationship to inform trauma-based therapies and interventions.

15.
Sex Transm Dis ; 44(2): 101-103, 2017 02.
Artículo en Inglés | MEDLINE | ID: mdl-28081046

RESUMEN

We evaluated 2 assays to detect antibodies to herpes simplex virus type 2 in dried blood spots prepared from blood specimens submitted to a reference laboratory in Kenya. Dried blood spots did not perform well with the Kalon herpes simplex virus type 2 assay. Focus HerpeSelect 2 was 98.8% sensitive and 98.9% specific with dried blood spots.


Asunto(s)
Anticuerpos Antivirales/sangre , Herpes Simple/diagnóstico , Herpesvirus Humano 2/inmunología , Ensayo de Inmunoadsorción Enzimática , Herpes Simple/virología , Herpesvirus Humano 2/aislamiento & purificación , Humanos , Reproducibilidad de los Resultados , Sensibilidad y Especificidad , Pruebas Serológicas
16.
Matern Child Health J ; 21(1): 58-67, 2017 01.
Artículo en Inglés | MEDLINE | ID: mdl-27475827

RESUMEN

Introduction There is limited research on rapid repeat pregnancies (RRP) among adolescents, especially using nationally representative samples. We examine distal factors-school, family, peers, and public/private religious ties-and their associations with RRP among adolescent mothers. Methods Guided by social development theory, we conducted multivariate logistic regression analyses, adjusted for sociodemographic characteristics, to examine associations between RRP and attachment to school, family, peers, and religion among 1158 female respondents from the National Longitudinal Study of Adolescent to Adult Health (Add Health) who reported at least one live birth before age 20. Results Attachments to conventional institutions were associated with lower likelihood of RRP. Adolescent mothers who had a stronger relationship with their parents had reduced odds of RRP (adjusted odds ratio [aOR] 0.83, 95 % CI 0.71-0.99). Increased odds of RRP were associated with anticipating fewer negative social consequences of sex (aOR 1.18, 95 % CI 1.02-1.35), never praying (versus praying daily; aOR 1.47, 95 % CI 1.10-1.96), and never participating in church-related youth activities (versus participating once a week; 1.04, 95 % CI 1.01-1.07). Discussion After an adolescent birth, social support from family, peers, and the community can benefit young mothers. Private aspects of religiosity may be especially important. Understanding the processes by which these distal factors are linked to the likelihood of RRP is needed to create multifaceted intervention programs that provide diverse methods of support customized to specific circumstances of adolescent mothers.


Asunto(s)
Liderazgo , Embarazo en Adolescencia/psicología , Adolescente , Relaciones Familiares/psicología , Femenino , Humanos , Estudios Longitudinales , Masculino , Oportunidad Relativa , Influencia de los Compañeros , Embarazo , Embarazo en Adolescencia/estadística & datos numéricos , Religión , Instituciones Académicas/normas , Estados Unidos
17.
Sex Transm Infect ; 91(6): 395-400, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26139208

RESUMEN

OBJECTIVES: Herpes simplex virus type 2 (HSV-2) biomarkers are often used in adolescent sub-Saharan HIV prevention studies, but evaluations of test performance and disclosure outcomes are rare in the published literature. Therefore, we investigated the proportion of ELISA-positive and indeterminate samples confirmed by western blot (WB), the psychosocial response to disclosure and whether reports of sexual behaviour and HSV-2 symptoms are consistent with WB confirmatory results among adolescent orphans in Kenya. METHODS: In 2011, 837 Kenyan orphan youth in grades 7 and 8 enrolled in an HIV prevention clinical trial with HSV-2 biomarker outcomes. We used a modified algorithm for the Kalon HSV-2 ELISA to improve specificity; positive and indeterminate results were WB tested. We developed culturally sensitive protocols for disclosing positive results, and documented psychosocial responses, reports of sexual contact and HSV-2 symptoms. RESULTS: 28 adolescents (3.3%) were identified as HSV-2 seropositive, six as indeterminate. Of these, 22 positive and all indeterminates were WB tested; 20 and 5, respectively, were confirmed positive. Most youth reported moderate brief stress after disclosure; 22% reported longer and more severe distress. Boys were more likely to be in the latter category. Self-reported virginity was highly inconsistent with WB-confirmed positives. CONCLUSIONS: The higher than manufacturer's cut-off for Kalon ELISA modestly reduced the rate of false-positive test results, but also increased false negatives. Investigators should consider the risk:benefit ratio in deciding whether or not to disclose HSV-2 results to adolescent participants under specific field conditions. TRIAL REGISTRATION NUMBER: NCT01501864.


Asunto(s)
Servicios de Salud del Adolescente/organización & administración , Niños Huérfanos/estadística & datos numéricos , Infecciones por VIH/prevención & control , Herpes Genital/diagnóstico , Herpes Genital/psicología , Herpesvirus Humano 2/aislamiento & purificación , Revelación de la Verdad , Adolescente , Conducta del Adolescente/psicología , Algoritmos , Anticuerpos Antivirales , Ansiedad/etiología , Biomarcadores , Western Blotting , Niños Huérfanos/psicología , Ensayo de Inmunoadsorción Enzimática , Estudios de Seguimiento , Infecciones por VIH/epidemiología , Herpes Genital/epidemiología , Humanos , Kenia/epidemiología , Conducta Sexual
18.
Behav Genet ; 45(1): 12-23, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25378290

RESUMEN

Here we provide a detailed description of the genome-wide information available on the National Longitudinal Study of Adolescent to Adult Health (Add Health) sibling pair subsample (Harris et al. in Twin Res Hum Genet 16:391-398, 2013). A total of 2,020 samples were genotyped (including duplicates) arising from 1946 Add Health individuals from the sibling pairs subsample. After various steps for quality control (QC) and quality assurance (QA), we have high quality genome-wide data available on 1,888 individuals. In this report, we first highlight the QC and QA steps that were taken to prune the data of poorly performing samples and genetic markers. We further estimate the pairwise biological relationships using genome-wide data and compare those estimates to the assumed relationships in Add Health. Additionally, using genome-wide data from known regional reference populations from Europe, West Africa, North and South America, Japan and China, we estimate the relative genetic ancestry of the respondents. Finally, rather than conducting a traditional cross-sectional genome-wide association study (GWAS) of body mass index (BMI), we opted to utilize the extensive publicly available genome-wide information to conduct a weighted GWAS of longitudinal BMI while accounting for both family and ethnic variation.


Asunto(s)
Predisposición Genética a la Enfermedad , Estudio de Asociación del Genoma Completo , Obesidad/genética , Hermanos , Adolescente , Medicina del Adolescente , Adulto , Índice de Masa Corporal , Femenino , Marcadores Genéticos , Genotipo , Salud Global , Humanos , Estudios Longitudinales , Masculino , Fenotipo , Polimorfismo de Nucleótido Simple , Control de Calidad , Programas Informáticos , Estados Unidos , Adulto Joven
19.
Behav Genet ; 45(2): 255-61, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25564228

RESUMEN

Genetic differences between populations are potentially an important contributor to health disparities around the globe. As differences in gene frequencies influence study design, it is important to have a thorough understanding of the natural variation of the genetic variant(s) of interest. Along these lines, we characterized the variation of the 5HTTLPR and rs25531 polymorphisms in six samples from North America, Southeast Asia, and Africa (Cameroon) that differ in their racial and ethnic composition. Allele and genotype frequencies were determined for 24,066 participants. Results indicated higher frequencies of the rs25531 G-allele among Black and African populations as compared with White, Hispanic and Asian populations. Further, we observed a greater number of 'extra-long' ('XL') 5HTTLPR alleles than have previously been reported. Extra-long alleles occurred almost entirely among Asian, Black and Non-White Hispanic populations as compared with White and Native American populations where they were completely absent. Lastly, when considered jointly, we observed between sample differences in the genotype frequencies within racial and ethnic populations. Taken together, these data underscore the importance of characterizing the L-G allele to avoid misclassification of participants by genotype and for further studies of the impact XL alleles may have on the transcriptional efficiency of SLC6A4.


Asunto(s)
Alelos , Proteínas de Transporte de Serotonina en la Membrana Plasmática/genética , Adolescente , África , Asia Sudoriental , Camerún , Estudios de Cohortes , Etnicidad/genética , Frecuencia de los Genes , Genotipo , Haplotipos , Humanos , Estudios Longitudinales , América del Norte , Polimorfismo Genético , Singapur , Adulto Joven
20.
J Adolesc ; 45: 112-26, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-26431691

RESUMEN

This study utilizes data from 18,392 respondents (aged 12-19) in Wave 1 of the National Longitudinal Study of Adolescent to Adult Health (Add Health) to provide a detailed descriptive analysis of U.S. adolescents' desired behaviors in their ideal romantic relationships. Age, gender, and ethnic group differences in the desire for--and preferred sequence of--a set of activities that could occur in a hypothetical romantic relationship were explored within subsets of heterosexual (n = 17,274) and sexual minority adolescents (n = 1118). Non-sexual behaviors were more commonly desired compared to sexual behaviors. The typical desired behavioral sequence was: holding hands, going out alone, telling others they were a couple, kissing, saying "I love you," sexual touching, and finally having sex. Overall, more similarities than differences emerged across groups, with some notable differences in the percentages who desired sexual behaviors. Results provide a nuanced picture of adolescent relationship scripts, with implications for education and prevention.


Asunto(s)
Conducta del Adolescente , Cortejo , Adolescente , Niño , Demografía , Femenino , Humanos , Entrevistas como Asunto , Estudios Longitudinales , Masculino , Investigación Cualitativa , Conducta Sexual , Estados Unidos , Adulto Joven
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