Research Output 2009 2017

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2017
1 Citations

A 'busy day' effect on perinatal complications of delivery on weekends: A retrospective cohort study

Snowden, J. M., Kozhimannil, K. B., Muoto, I., Caughey, A. B. & McConnell, K. J. Jan 1 2017 In : BMJ Quality and Safety. 26, 1, e1

Research output: Research - peer-reviewArticle

Cohort Studies
Retrospective Studies
Parturition
Mothers
Seizures

Causal inference in studies of preterm babies: A simulation study

Snowden, J. M. & Basso, O. 2017 (Accepted/In press) In : BJOG: An International Journal of Obstetrics and Gynaecology.

Research output: Research - peer-reviewArticle

Odds Ratio
Premature Birth
Pre-Eclampsia
Pathology
Perinatal Death
2 Citations

Duration of Second Stage of Labour at Term and Pushing Time: Risk Factors for Postpartum Haemorrhage

Looft, E., Simic, M., Ahlberg, M., Snowden, J. M., Cheng, Y. W. & Stephansson, O. Mar 1 2017 In : Paediatric and Perinatal Epidemiology. 31, 2, p. 126-133 8 p.

Research output: Research - peer-reviewArticle

Second Labor Stage
Postpartum Hemorrhage
Confidence Intervals
Electronic Health Records
Sweden

Poorer maternal diet quality and increased birth weight*

Grandy, M., Snowden, J. M., Boone-Heinonen, J., Purnell, J. Q., Thornburg, K. L. & Marshall, N. E. May 17 2017 (Accepted/In press) In : Journal of Maternal-Fetal and Neonatal Medicine. p. 1-7 7 p.

Research output: Research - peer-reviewArticle

Birth Weight
Mothers
Diet
Weight Gain
Adiposity

Self-Perceived Viral Load and Sexual Risk Behavior Among Known HIV-Positive MSM in San Francisco, 2014

Guigayoma, J., Chen, Y. H., Snowden, J. M., Santos, G. M., Hecht, J. & Raymond, H. F. Jul 1 2017 In : Journal of acquired immune deficiency syndromes (1999). 75, p. S309-S315

Research output: Research - peer-reviewArticle

San Francisco
Risk-Taking
Viral Load
Sexual Behavior
HIV

Shifting Patterns in Cesarean Delivery Scheduling and Timing in Oregon before and after a Statewide Hard Stop Policy

Muoto, I., Darney, B. G., Lau, B., Cheng, Y. W., Tomlinson, M. W., Neilson, D. R., Friedman, S. A., Rogovoy, J., Caughey, A. B. & Snowden, J. M. 2017 (Accepted/In press) In : Health Services Research.

Research output: Research - peer-reviewArticle

Vital Statistics
Morbidity
Term Birth
Information Storage and Retrieval
Neonatal Intensive Care Units

Type-2 diabetes mellitus: does prenatal care affect outcomes?

Allen, A. J., Snowden, J. M., Lau, B., Cheng, Y. & Caughey, A. B. Feb 15 2017 (Accepted/In press) In : Journal of Maternal-Fetal and Neonatal Medicine. p. 1-5 5 p.

Research output: Research - peer-reviewArticle

Fetal Death
Prenatal Care
First Pregnancy Trimester
Type 2 Diabetes Mellitus
Pre-Eclampsia

Uptake and utilization of practice guidelines in hospitals in the United States: The case of routine episiotomy

Kozhimannil, K. B., Karaca-Mandic, P., Blauer-Peterson, C. J., Shah, N. T. & Snowden, J. M. Jan 1 2017 In : Joint Commission Journal on Quality and Patient Safety. 43, 1, p. 41-48 8 p.

Research output: Research - peer-reviewArticle

Episiotomy
Practice Guidelines
Guidelines
Urban Hospitals
Teaching
1 Citations

Vaginal birth after cesarean: neonatal outcomes and United States birth setting

Tilden, E. L., Cheyney, M., Guise, J. M., Emeis, C., Lapidus, J., Biel, F. M., Wiedrick, J. & Snowden, J. M. Apr 1 2017 In : American Journal of Obstetrics and Gynecology. 216, 4, p. 403.e1-403.e8

Research output: Research - peer-reviewArticle

Vaginal Birth after Cesarean
Parturition
Apgar Score
Odds Ratio
Confidence Intervals
2016
Cerebral Palsy
Pregnancy
Infection
Chorioamnionitis
Mothers
1 Citations
2 Citations

Oregon's coordinated care organizations increased timely prenatal care initiation and decreased disparities

Muoto, I., Luck, J., Yoon, J., Bernell, S. & Snowden, J. M. 2016 In : Health Affairs. 35, 9, p. 1625-1632 8 p.

Research output: Research - peer-reviewArticle

Prenatal Care
Organizations
Medicaid
Insurance
Birth Certificates
5 Citations

Oregon's Hard-Stop Policy Limiting Elective Early-Term Deliveries: Association with Obstetric Procedure Use and Health Outcomes

Snowden, J. M., Muoto, I., Darney, B. G., Quigley, B., Tomlinson, M. W., Neilson, D., Friedman, S. A., Rogovoy, J. & Caughey, A. B. Dec 1 2016 In : Obstetrics and Gynecology. 128, 6, p. 1389-1396 8 p.

Research output: Research - peer-reviewArticle

Obstetrics
Health
Pregnancy
Chorioamnionitis
Stillbirth
1 Citations

Pharmacist-prescribed birth control in Oregon and other states

Yang, Y. T., Kozhimannil, K. B. & Snowden, J. M. Apr 19 2016 In : JAMA - Journal of the American Medical Association. 315, 15, p. 1567-1568 2 p.

Research output: Research - peer-reviewArticle

17 Citations

Pre-exposure Prophylaxis (PrEP) Use, Seroadaptation, and Sexual Behavior Among Men Who Have Sex with Men, San Francisco, 2004–2014

Chen, Y. H., Snowden, J. M., McFarland, W. & Raymond, H. F. Mar 16 2016 (Accepted/In press) In : AIDS and Behavior. p. 1-7 7 p.

Research output: Research - peer-reviewArticle

San Francisco
Sexual Behavior
Pre-Exposure Prophylaxis
Condoms
HIV
2 Citations
San Francisco
Cross-Sectional Studies
Pre-Exposure Prophylaxis
HIV Infections
HIV

Reframing US Maternity Care: Lessons Learned From End-of-Life Care

Tilden, E. L., Snowden, J. M., Caughey, A. B. & Lowe, N. K. 2016 (Accepted/In press) In : Journal of Midwifery and Women's Health.

Research output: Research - peer-reviewArticle

Risk factors for brachial plexus injury in a large cohort with shoulder dystocia

Volpe, K. A., Snowden, J. M., Cheng, Y. W. & Caughey, A. B. Apr 4 2016 (Accepted/In press) In : Archives of Gynecology and Obstetrics. p. 1-5 5 p.

Research output: Research - peer-reviewArticle

Arm Injuries
Dystocia
Brachial Plexus
Parity
Parturition
2 Citations

Term elective induction of labour and perinatal outcomes in obese women: Retrospective cohort study

Lee, V. R., Darney, B. G., Snowden, J. M., Main, E. K., Gilbert, W., Chung, J. & Caughey, A. B. Jan 1 2016 In : BJOG: An International Journal of Obstetrics and Gynaecology. 123, 2, p. 271-278 8 p.

Research output: Research - peer-reviewArticle

Induced Labor
Cohort Studies
Retrospective Studies
Odds Ratio
Confidence Intervals
2 Citations

The Impact of maternal obesity and race/ethnicity on perinatal outcomes: Independent and joint effects

Snowden, J. M., Mission, J. F., Marshall, N. E., Quigley, B., Main, E., Gilbert, W. M., Chung, J. H. & Caughey, A. B. Jul 1 2016 In : Obesity. 24, 7, p. 1590-1598 9 p.

Research output: Research - peer-reviewArticle

Obesity
Mothers
Weights and Measures
Body Mass Index
Confidence Intervals
2015
5 Citations

Association between Hospital Birth Volume and Maternal Morbidity among Low-Risk Pregnancies in Rural, Urban, and Teaching Hospitals in the United States

Kozhimannil, K. B., Thao, V., Hung, P., Tilden, E., Caughey, A. B. & Snowden, J. M. Nov 10 2015 (Accepted/In press) In : American Journal of Perinatology.

Research output: Research - peer-reviewArticle

Rural Hospitals
Urban Hospitals
Teaching Hospitals
Mothers
Parturition
2 Citations

Framing air pollution epidemiology in terms of population interventions, with applications to multipollutant modeling

Snowden, J. M., Reid, C. E. & Tager, I. B. Mar 4 2015 In : Epidemiology. 26, 2, p. 271-279 9 p.

Research output: Research - peer-reviewArticle

Air Pollution
Epidemiology
Population
Health
Nitrogen Dioxide

Is there a weekend effect in obstetrics?

Snowden, J. M. & Caughey, A. B. Nov 24 2015 In : BMJ (Online). 351, h6192

Research output: Research - peer-reviewArticle

38 Citations

Planned out-of-hospital birth and birth outcomes

Snowden, J. M., Tilden, E. L., Snyder, J., Quigley, B., Caughey, A. B. & Cheng, Y. W. Dec 31 2015 In : New England Journal of Medicine. 373, 27, p. 2642-2653 12 p.

Research output: Research - peer-reviewArticle

Parturition
Mothers
Confidence Intervals
Morbidity
Birth Certificates
2 Citations

Population intervention models to estimate ambient NO2 health effects in children with asthma

Snowden, J. M., Mortimer, K. M., Kang Dufour, M. S. & Tager, I. B. Nov 1 2015 In : Journal of Exposure Science and Environmental Epidemiology. 25, 6, p. 567-573 7 p.

Research output: Research - peer-reviewArticle

Air Pollution
Asthma
Health
Population
Air pollution
2 Citations

Prospective risk of fetal death with gastroschisis

Meyer, M. R., Shaffer, B. L., Doss, A. E., Cahill, A. G., Snowden, J. M. & Caughey, A. B. Nov 22 2015 In : Journal of Maternal-Fetal and Neonatal Medicine. 28, 17, p. 2126-2129 4 p.

Research output: Research - peer-reviewArticle

Gastroschisis
Fetal Death
Fetus
Pregnancy
National Center for Health Statistics (U.S.)
10 Citations
Obstetrics
Mothers
Pregnancy
Low-Volume Hospitals
Rural Hospitals
4 Citations
Twin Pregnancy
Stillbirth
Infant Death
Pregnancy
Fetal Mortality
5 Citations

Trends in the HIV Epidemic Among African American Men Who Have Sex with Men, San Francisco, 2004–2011

Fuqua, V., Scott, H., Scheer, S., Hecht, J., Snowden, J. M. & Raymond, H. F. Feb 17 2015 In : AIDS and Behavior. 19, 12, p. 2311-2316 6 p.

Research output: Research - peer-reviewArticle

San Francisco
African Americans
HIV
Incidence
Vulnerable Populations
6 Citations

Velamentous cord insertion: Is it associated with adverse perinatal outcomes?

Esakoff, T. F., Cheng, Y. W., Snowden, J. M., Tran, S. H., Shaffer, B. L. & Caughey, A. B. Mar 1 2015 In : Journal of Maternal-Fetal and Neonatal Medicine. 28, 4, p. 409-412 4 p.

Research output: Research - peer-reviewArticle

Fetal Death
Gestational Age
Pregnancy
Datasets
Vital Statistics
2014
5 Citations

Clinicians' practice environment is associated with a higher likelihood of recommending cesarean deliveries

Cheng, Y. W., Snowden, J. M., Handler, S., Tager, I. B., Hubbard, A. & Caughey, A. B. 2014 In : Journal of Maternal-Fetal and Neonatal Medicine. 27, 12, p. 1220-1227 8 p.

Research output: Research - peer-reviewArticle

Surveys and Questionnaires
Obstetrics
Hospitalists
Chi-Square Distribution
Logistic Models
12 Citations

Litigation in obstetrics: Does defensive medicine contribute to increases in cesarean delivery?

Cheng, Y. W., Snowden, J. M., Handler, S. J., Tager, I. B., Hubbard, A. E. & Caughey, A. B. Nov 1 2014 In : Journal of Maternal-Fetal and Neonatal Medicine. 27, 16, p. 1668-1675 8 p.

Research output: Research - peer-reviewArticle

Defensive Medicine
Jurisprudence
Obstetrics
Surveys and Questionnaires
Logistic Models
24 Citations
San Francisco
HIV
Condoms
Risk Reduction Behavior
Sexually Transmitted Diseases

Reply

Cheng, Y. W., Snowden, J. M., King, T. L. & Caughey, A. B. 2014 In : American Journal of Obstetrics and Gynecology. 210, 5, p. 488 1 p.

Research output: Research - peer-reviewArticle

Reply

Cheng, Y. W., Snowden, J. M., Caughey, A. B. & King, T. L. 2014 In : American Journal of Obstetrics and Gynecology. 210, 5, p. 489-490 2 p.

Research output: Research - peer-reviewArticle

7 Citations
Risk Management
Gestational Age
Mortality
Ethnic Groups
Infant Death
2013
61 Citations

Elective induction of labor at term compared with expectant management: Maternal and neonatal outcomes

Darney, B. G., Snowden, J. M., Cheng, Y. W., Jacob, L., Nicholson, J. M., Kaimal, A., Dublin, S., Getahun, D. & Caughey, A. B. Oct 2013 In : Obstetrics and Gynecology. 122, 4, p. 761-769 9 p.

Research output: Research - peer-reviewArticle

Induced Labor
Odds Ratio
Mothers
Confidence Intervals
Dystocia
39 Citations
Parturition
Apgar Score
Live Birth
Cohort Studies
Retrospective Studies
8 Citations

Systems factors in obstetric care the role of daily obstetric volume

Snowden, J. M., Darney, B. G., Cheng, Y. W., Mcconnell, K. J. & Caughey, A. B. Oct 2013 In : Obstetrics and Gynecology. 122, 4, p. 851-857 7 p.

Research output: Research - peer-reviewArticle

Obstetrics
Parturition
Asphyxia
Low-Volume Hospitals
Population

The association between hospital obstetric volume and perinatal outcomes in California

Snowden, J. M., Cheng, Y. W., Kontgis, C. P. & Caughey, A. B. Mar 2013 In : Obstetrical and Gynecological Survey. 68, 3, p. 185-186 2 p.

Research output: Research - peer-reviewArticle

18 Citations

The risk of stillbirth and infant death by each additional week of expectant management stratified by maternal age

Page, J. M., Snowden, J. M., Cheng, Y. W., Doss, A. E., Rosenstein, M. G. & Caughey, A. B. Oct 2013 In : American Journal of Obstetrics and Gynecology. 209, 4

Research output: Research - peer-reviewArticle

Stillbirth
Maternal Age
Infant Death
Risk Management
Pregnancy
2012
37 Citations

Induction of labor compared to expectant management in low-risk women and associated perinatal outcomes

Cheng, Y. W., Kaimal, A. J., Snowden, J. M., Nicholson, J. M. & Caughey, A. B. Dec 2012 In : American Journal of Obstetrics and Gynecology. 207, 6

Research output: Research - peer-reviewArticle

Induced Labor
Gestational Age
Odds Ratio
Confidence Intervals
Term Birth

In reply

Rosenstein, M. G., Cheng, Y. W., Snowden, J. M., Nicholson, J. M. & Caughey, A. B. Nov 2012 In : Obstetrics and Gynecology. 120, 5, p. 1212 1 p.

Research output: Research - peer-reviewArticle

45 Citations

Risk of stillbirth and infant death stratified by gestational age.

Rosenstein, M. G., Cheng, Y. W., Snowden, J. M., Nicholson, J. M. & Caughey, A. B. Jul 2012 In : Obstetrics and Gynecology. 120, 1, p. 76-82 7 p.

Research output: Research - peer-reviewArticle

Stillbirth
Gestational Age
Pregnancy
Infant Death
Mortality
1 Citations

Studying and preventing stillbirth: What are the methodological issues

Snowden, J. M. & Caughey, A. B. Nov 2012 In : Journal of Perinatology. 32, 11, p. 817-818 2 p.

Research output: Research - peer-reviewArticle

20 Citations
Obstetrics
Asphyxia
Live Birth
Low-Volume Hospitals
High-Volume Hospitals
23 Citations
Gestational Diabetes
Pre-Eclampsia
Hypoglycemia
Odds Ratio
Confidence Intervals
29 Citations
Pregnancy Outcome
Hypertension
Premature Birth
Cohort Studies
Retrospective Studies