Sneha Challa
Biographic Data
| ID | 5874230 |
|---|---|
| NAME | Sneha Challa |
| GIVEN NAMES | Sneha |
| FAMILY NAME | Challa |
| SIGNATURE | CHALLA S |
| AFFILIATIONS | University of California, San Francisco |
| ORCID | 0000-0001-5220-6834 |
| VERIFIED | Yes |
| TOTAL WORKS | 12 |
| TOTAL CITATIONS | 18 |
| AUTHOR COUNT | 12 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2017 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
Understanding clients’ and providers’ perspectives on the implementation of subcutaneous depot medroxyprogesterone acetate (DMPA-SC) for self-injection programming in Nigeria
Subcutaneous depot medroxyprogesterone acetate (DMPA-SC) is an injectable contraceptive method with a small needle and prefilled syringe system that has been approved for self-injection (SI) by clients. As DMPA-SC for SI programmes are being scaled, employing an implementation science lens is critical to understanding what works. This study explored providers’ and clients’ experiences with providing and receiving services, respectively, for DMPA-…
Opening the black box of agency in contraceptive decision-making
Effect of a Gender-Synchronized Family Planning Intervention on Inequitable Gender Norms in a Cluster Randomized Control Trial Among Husbands of Married Adolescent Girls in Dosso, Niger
Gender inequitable norms have severe consequences for safety and health globally. Using data from a four-arm cluster randomized control trial of the Reaching Married Adolescents in Niger (RMA) intervention (2016-2019), this study assesses effects on gender norms among husbands of married adolescent girls ( n = 1,055). Using an adjusted hierarchical difference-in-differences model, we found assignment to the RMA small groups intervention to be ass…
Development and Validation of the Agency in Contraceptive Decisions Scale in Uganda and Nigeria
To fill a gap in measures of empowered contraceptive decision‐making, we developed the Agency in Contraceptive Decisions Scale in Uganda and Nigeria. We developed an item pool drawing on the previously published Contraceptive Agency framework. We refined items through cognitive interviews ( N = 80) and expert feedback and piloted a reduced item pool via surveys ( N = 3002). Exploratory factor analysis using a random half of the sample suggested a…
Women's Perspectives on the Unique Benefits and Challenges of Self‐Injectable Contraception
Implementing self‐injection (SI) of subcutaneous depot‐medroxyprogesterone acetate (DMPA‐SC) is a key self‐care strategy for sexual and reproductive health, but SI uptake remains low, and assertions about the potential of SI to increase women's control over contraceptive use lack evidence. We sought to qualitatively explore how women with diverse contraceptive experiences—including those with and without experience using SI—view the benefits and …
Psychometric Properties and Refinement of the ATT-IPV Scale to Measure Attitudes about Intimate Partner Violence among Married Adolescents and Their Husbands in Niger
(1) Background: This study sought to assess the appropriateness of a five-item scale to measure attitudes towards IPV (ATT-IPV) among married adolescent girls and their husbands in Niger, a population in which this scale has not yet been tested. (2) Methods: Using data collected from 1100 pairs of married adolescents, aged 13-19 years old, and their husbands across 48 villages in rural Niger, we performed classical test theory reliability and exp…
Changes in childhood caregiving impressions among middle‐aged and older adults
Childhood experiences and impressions are important for individuals' health and well‐being—they often set the stage for how people approach relationships across the lifespan and how they make sense of their relational worlds. However, impressions of these experiences are likely not static and can change over time, even years after these experiences happened. The current study examined how impressions of parental relationships in childhood changed…
Preference‐Aligned Fertility Management as a Person‐Centered Alternative to Contraceptive Use‐Focused Measures
Equating contraceptive use with programmatic success is fundamentally flawed in failing to account for whether individuals desire contraceptive use; this is problematic because nonuse can reflect empowered decision‐making and use may reflect an individual's inability to refuse or discontinue a method. A rights‐based approach demands respect for individuals’ freedom to weigh options and choose how their desire for pregnancy prevention can be accom…
Characterizing Nigerien men's social networks and their influence on family planning-related attitudes and behaviors
This work uses data from a family planning (FP) program evaluation and social network study among men married to adolescent girls (ages 13-19) in Dosso, Niger to explore who influences their FP and through which social mechanisms. We asked men (N = 237) to nominate and describe their perceptions of key social contacts (alters). We sought to interview the most influential alter (N = 157 interviewed alters), asking them about their own FP-related a…
Social network and social normative characteristics of married female adolescents in Dosso, Niger
In this study we analysed the social networks of a sample of married adolescent girls (ages 13-19 years) residing in Dosso, Niger ( N = 322); data were collected for evaluation of a family planning (FP) intervention. Participants were asked to name individuals important in their lives (alters) using three name generating questions as part of a larger survey on reproductive health, social norms, and FP. One alter per girl was then recruited to be …
Spatial analysis of individual- and village-level sociodemographic characteristics associated with age at marriage among married adolescents in rural Niger
Our findings suggest that large-scale approaches to eliminating child marriage in these communities may be less successful if they do not take into consideration geographically and socially determined contextual factors at the village level
Development and Validation of a Scale to Measure Adolescent Sexual and Reproductive Health Stigma
Young women's experiences with sexual and reproductive health (SRH) stigma may contribute to unintended pregnancy. Thus, stigma interventions and rigorous measures to assess their impact are needed. Based on formative work, we generated a pool of 51 items on perceived stigma around different dimensions of adolescent SRH and family planning (sex, contraception, pregnancy, childbearing, abortion). We tested items in a survey study of 1,080 women ag…
Preference‐Aligned Fertility Management as a Person‐Centered Alternative to Contraceptive Use‐Focused Measures
Equating contraceptive use with programmatic success is fundamentally flawed in failing to account for whether individuals desire contraceptive use; this is problematic because nonuse can reflect empowered decision‐making and use may reflect an individual's inability to refuse or discontinue a method. A rights‐based approach demands respect for individuals’ freedom to weigh options and choose how their desire for pregnancy prevention can be accom…
Development and Validation of a Scale to Measure Adolescent Sexual and Reproductive Health Stigma
Young women's experiences with sexual and reproductive health (SRH) stigma may contribute to unintended pregnancy. Thus, stigma interventions and rigorous measures to assess their impact are needed. Based on formative work, we generated a pool of 51 items on perceived stigma around different dimensions of adolescent SRH and family planning (sex, contraception, pregnancy, childbearing, abortion). We tested items in a survey study of 1,080 women ag…
Development and Validation of a Scale to Measure Adolescent Sexual and Reproductive Health Stigma
Young women's experiences with sexual and reproductive health (SRH) stigma may contribute to unintended pregnancy. Thus, stigma interventions and rigorous measures to assess their impact are needed. Based on formative work, we generated a pool of 51 items on perceived stigma around different dimensions of adolescent SRH and family planning (sex, contraception, pregnancy, childbearing, abortion). We tested items in a survey study of 1,080 women ag…
Social network and social normative characteristics of married female adolescents in Dosso, Niger
In this study we analysed the social networks of a sample of married adolescent girls (ages 13-19 years) residing in Dosso, Niger ( N = 322); data were collected for evaluation of a family planning (FP) intervention. Participants were asked to name individuals important in their lives (alters) using three name generating questions as part of a larger survey on reproductive health, social norms, and FP. One alter per girl was then recruited to be …
Spatial analysis of individual- and village-level sociodemographic characteristics associated with age at marriage among married adolescents in rural Niger
Our findings suggest that large-scale approaches to eliminating child marriage in these communities may be less successful if they do not take into consideration geographically and socially determined contextual factors at the village level
Characterizing Nigerien men's social networks and their influence on family planning-related attitudes and behaviors
This work uses data from a family planning (FP) program evaluation and social network study among men married to adolescent girls (ages 13-19) in Dosso, Niger to explore who influences their FP and through which social mechanisms. We asked men (N = 237) to nominate and describe their perceptions of key social contacts (alters). We sought to interview the most influential alter (N = 157 interviewed alters), asking them about their own FP-related a…
Psychometric Properties and Refinement of the ATT-IPV Scale to Measure Attitudes about Intimate Partner Violence among Married Adolescents and Their Husbands in Niger
(1) Background: This study sought to assess the appropriateness of a five-item scale to measure attitudes towards IPV (ATT-IPV) among married adolescent girls and their husbands in Niger, a population in which this scale has not yet been tested. (2) Methods: Using data collected from 1100 pairs of married adolescents, aged 13-19 years old, and their husbands across 48 villages in rural Niger, we performed classical test theory reliability and exp…
Changes in childhood caregiving impressions among middle‐aged and older adults
Childhood experiences and impressions are important for individuals' health and well‐being—they often set the stage for how people approach relationships across the lifespan and how they make sense of their relational worlds. However, impressions of these experiences are likely not static and can change over time, even years after these experiences happened. The current study examined how impressions of parental relationships in childhood changed…
Preference‐Aligned Fertility Management as a Person‐Centered Alternative to Contraceptive Use‐Focused Measures
Equating contraceptive use with programmatic success is fundamentally flawed in failing to account for whether individuals desire contraceptive use; this is problematic because nonuse can reflect empowered decision‐making and use may reflect an individual's inability to refuse or discontinue a method. A rights‐based approach demands respect for individuals’ freedom to weigh options and choose how their desire for pregnancy prevention can be accom…
Women's Perspectives on the Unique Benefits and Challenges of Self‐Injectable Contraception
Implementing self‐injection (SI) of subcutaneous depot‐medroxyprogesterone acetate (DMPA‐SC) is a key self‐care strategy for sexual and reproductive health, but SI uptake remains low, and assertions about the potential of SI to increase women's control over contraceptive use lack evidence. We sought to qualitatively explore how women with diverse contraceptive experiences—including those with and without experience using SI—view the benefits and …
Opening the black box of agency in contraceptive decision-making
Effect of a Gender-Synchronized Family Planning Intervention on Inequitable Gender Norms in a Cluster Randomized Control Trial Among Husbands of Married Adolescent Girls in Dosso, Niger
Gender inequitable norms have severe consequences for safety and health globally. Using data from a four-arm cluster randomized control trial of the Reaching Married Adolescents in Niger (RMA) intervention (2016-2019), this study assesses effects on gender norms among husbands of married adolescent girls ( n = 1,055). Using an adjusted hierarchical difference-in-differences model, we found assignment to the RMA small groups intervention to be ass…
Development and Validation of the Agency in Contraceptive Decisions Scale in Uganda and Nigeria
To fill a gap in measures of empowered contraceptive decision‐making, we developed the Agency in Contraceptive Decisions Scale in Uganda and Nigeria. We developed an item pool drawing on the previously published Contraceptive Agency framework. We refined items through cognitive interviews ( N = 80) and expert feedback and piloted a reduced item pool via surveys ( N = 3002). Exploratory factor analysis using a random half of the sample suggested a…
Understanding clients’ and providers’ perspectives on the implementation of subcutaneous depot medroxyprogesterone acetate (DMPA-SC) for self-injection programming in Nigeria
Subcutaneous depot medroxyprogesterone acetate (DMPA-SC) is an injectable contraceptive method with a small needle and prefilled syringe system that has been approved for self-injection (SI) by clients. As DMPA-SC for SI programmes are being scaled, employing an implementation science lens is critical to understanding what works. This study explored providers’ and clients’ experiences with providing and receiving services, respectively, for DMPA-…
Global Maternal and Child Health (9 works) · Adolescent Sexual and Reproductive Health (8 works) · Population (8 works) · Psychology (8 works) · Demography (6 works) · Demography (6 works) · Developmental psychology (6 works) · Medicine (6 works) · Sociology (6 works) · Social Psychology (5 works)