Occupational physical activity and other risk factors for preterm birth among US Army primigravidas.
Open accessAbstract
We examined the relation of occupational physical activity to the risk of preterm birth among US Army active-duty primigravidas between 1981 and 1984 using 604 cases (preterm deliveries; less than or equal to 37 weeks gestation) and 6,070 controls (term and post-term deliveries). Women employed in the highest physical activity levels had increased odds of preterm delivery ranging from 1.69 to 1.75. The relation was not changed by adjustment for the effects of age, marital status, socioeconomic status, or education. Missing data suggest cautious interpretation.
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The study did not find the previously suggested associations with physical exertion and psychological stress, although stress was associated with PTL in the case-control analysis.
“We did not find the previously suggested associations with physical exertion11,12 and psychological stress,20,21 although stress was associated with PTL in the case-control analysis.”
From Triggers of Spontaneous Preterm Delivery – Why Today? (2014) · cites this paper as [12]
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PREMATURITY AND OCCUPATIONAL ACTIVITY DURING PREGNANCY
MAMELLE, N., Laumon, B., & Lazar, P. (1984) · American Journal of Epidemiology · doi:10.1093/oxfordjournals.aje.a113750 · Cited by 318 · see citing works
Physical activity and the risk of spontaneous preterm delivery.
Berkowitz, G. S., Kelsey, J. L., Tr, H., & Rl, B. (1983) · PubMed · Cited by 124 · see citing works
Hauth, J. C., Gilstrap, L. C., Brekken, A. L., & Hauth, J. M. (1983) · American Journal of Obstetrics and Gynecology · doi:10.1016/0002-9378(83)91051-7 · Cited by 101 · see citing works
The active-duty military pregnancy: A new high-risk category
Fox, M. E., Harris, R. E., & Brekken, A. L. (1977) · American Journal of Obstetrics and Gynecology · doi:10.1016/0002-9378(77)90662-7 · Cited by 41 · see citing works
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Research works printed but not linked: 4
- Owen M: Laws and policies affecting the training and practice of traditional birth attendants. Int Digest Health Legis 1983; 34:441-475.
- Women in the Army Policy Review Group. Women in the Army policy review. Washington, DC: Department of the Army, 1982.
- Schlesselman JJ: Case-control studies. Design, conduct, analysis. New York: Oxford University Press, 1982; 200-206.
- MARY K. HuNT, MPH, RD, R. CRMUG LEFEBVRE, PHD, MARY LYNNE HIXSON, MA, RD, STEPHEN W. BANSPACH, PHD, ANNLOUISE R. ASSAF, PHD, AND RIcHARD A. CARLETON, MD Abstract: Point-of-purchase nutrition education in supermarkets is one intervention strategy of the Pawtucket Heart Health Program, a community cardiovascular disease prevention program in Paw- tucket, Rhode Island. Using consumer intercept interviews, awareness of shelf labels and their effect on purchase behavior have been continuously evaluated. Between 1984 and 1988, the percent of shoppers who could identify correct labels increased from 11 percent to 24 percent (95% confidence intervals of difference: 7,17). The percent who reported they were encouraged to purchase the identified foods increased from 36 percent to 54 percent (95% CI of difference: 5,41). (Am J Public Health 1990; 80:730-731.)
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Working conditions and adverse pregnancy outcome: a meta-analysis
Mozurkewich, E. (2000) · Obstetrics and Gynecology · doi:10.1016/s0029-7844(99)00598-0 · Cited by 391 · see citing works
Bonzini, M., Coggon, D., & Palmer, K. T. (2006) · Occupational and Environmental Medicine · doi:10.1136/oem.2006.026872 · Cited by 255 · see citing works
Role of Psychosocial and Nutritional Stress on Poor Pregnancy Outcome
Hobel, C. J., & Culhane, J. F. (2003) · Journal of Nutrition · doi:10.1093/jn/133.5.1709s · Cited by 245 · see citing works
Palmer, K. T., Bonzini, M., Harris, E. C., Linaker, C., & Bonde, J. . (2013) · Occupational and Environmental Medicine · doi:10.1136/oemed-2012-101032 · Cited by 178 · see citing works
Cai, C., Vandermeer, B., Khurana, R., Nerenberg, K. A., Featherstone, R. M., Sebastianski, M., & Davenport, M. H. (2019) · American Journal of Obstetrics and Gynecology · doi:10.1016/j.ajog.2019.08.059 · Cited by 148 · see citing works
Physical Activity and Pregnancy Outcome Review and Recommendations
Sternfeld, B. (1997) · Sports Medicine · doi:10.2165/00007256-199723010-00004 · Cited by 147 · see citing works
Prepregnancy Health Status and the Risk of Preterm Delivery
Haas, J. S., Fuentes‐Afflick, E., Stewart, A. L., Jackson, R., Dean, M. L., Brawarsky, P., & Escobar, G. J. (2005) · Archives of Pediatrics and Adolescent Medicine · doi:10.1001/archpedi.159.1.58 · Cited by 139 · see citing works
The association between occupational factors and preterm birth: A United States nurses' study
Luke, B., MAMELLE, N., Keth, L., Munoz, F., Minogue, J., Papiernik, E., & Johnson, T. R. B. (1995) · American Journal of Obstetrics and Gynecology · doi:10.1016/0002-9378(95)90354-2 · Cited by 129 · see citing works
Standing at work and preterm delivery
Henriksen, T. B., Hedegaard, M., Secher, N. J., & Wilcox, A. J. (1995) · BJOG: An International Journal of Obstetrics & Gynaecology · doi:10.1111/j.1471-0528.1995.tb09094.x · Cited by 119 · see citing works
Characteristics of maternal employment during pregnancy: effects on low birthweight.
Peoples‐Sheps, M. D., Siegel, E., Suchindran, C., Origasa, H., Ware, A. L., & Barakat, A. (1991) · American Journal of Public Health · doi:10.2105/ajph.81.8.1007 · Cited by 102 · see citing works
Preterm Delivery Among African-American Women: A Research Strategy
Rowley, D. L., HOGUE, C. J. R., Blackmore-Prince, C., Ferré, C. D., Hatfield‐Timajchy, K., Branch, P. K., & Atrash, H. K. (1993) · American Journal of Preventive Medicine · doi:10.1016/s0749-3797(18)30659-7 · Cited by 87 · see citing works
Human Growth: Assessment and Interpretation
Roche, A. F., & Sun, S. S. (2003) · Cited by 87 · see citing works
Fortier, I., Marcoux, S., & Brisson, J. (1995) · Scandinavian Journal of Work Environment & Health · doi:10.5271/sjweh.56 · Cited by 79 · see citing works
Potential effects of maternal physical activity on birth weight: brief review
Pivarnik, J. M. (1998) · Medicine & Science in Sports & Exercise · doi:10.1097/00005768-199803000-00010 · Cited by 77 · see citing works
The epidemiology of preterm labor
Robinson, J. N., Regan, J. A., & Norwitz, E. R. (2001) · Seminars in Perinatology · doi:10.1053/sper.2001.27548 · Cited by 76 · see citing works
HATCH, M. C., Ji, B., Shu, X., & Susser, M. W. (1997) · Epidemiology · doi:10.1097/00001648-199709000-00010 · Cited by 69 · see citing works
Physical Activity and Preterm Birth: A Literature Review
Domingues, M. R., Matijasevich, A., & Barros, A. J. D. (2009) · Sports Medicine · doi:10.2165/11317900-000000000-00000 · Cited by 56 · see citing works
Roche, A. F., & Sun, S. S. (2003) · Cambridge University Press eBooks · doi:10.1017/cbo9780511525681 · Cited by 109 · see citing works
Reproductive hazards of the American lifestyle: Work during pregnancy
Gabbe, S. G., & Turner, L. P. (1997) · American Journal of Obstetrics and Gynecology · doi:10.1016/s0002-9378(97)70607-0 · Cited by 47 · see citing works
Maternal Work and Birth Outcome Disparities
Bell, J. F., Zimmerman, F. J., & Diehr, P. K. (2007) · Maternal and Child Health Journal · doi:10.1007/s10995-007-0264-6 · Cited by 41 · see citing works
Relationship of ergonomic stressors to birthweight and gestational age.
Marbury, M. C. (1992) · Scandinavian Journal of Work Environment & Health · doi:10.5271/sjweh.1598 · Cited by 40 · see citing works
Work and pregnancy: The role of fatigue and the “second shift” on antenatal morbidity
Luke, B., Avni, M., Min, L., & Misiunas, R. B. (1999) · American Journal of Obstetrics and Gynecology · doi:10.1016/s0002-9378(99)70103-1 · Cited by 39 · see citing works
Employment-related stress and preterm delivery: a contextual examination.
Hickey, C. A., Cliver, S. P., Mulvihill, F. X., McNeal, S. F., Hoffman, H. J., & Goldenberg, R. L. (1995) · PubMed Central · Cited by 35 · see citing works
Campbell, M. K., Challis, J. R. G., daSilva, O., & Bocking, A. D. (2005) · Journal of Clinical Epidemiology · doi:10.1016/j.jclinepi.2004.06.015 · Cited by 32 · see citing works
Wildschut, H. I. J., Harker, L., & Riddoch, C. (1993) · Journal of Psychosomatic Obstetrics & Gynecology · doi:10.3109/01674829309084427 · Cited by 32 · see citing works
Physical work load and gestational age at delivery.
Koemeester, A. P., Broersen, J. P. J., & Treffers, P. E. (1995) · Occupational and Environmental Medicine · doi:10.1136/oem.52.5.313 · Cited by 28 · see citing works
Triggers of Spontaneous Preterm Delivery – Why Today?
Hernández‐Díaz, S., Boeke, C. E., Romans, A. T., Young, B., Margulis, A. V., McElrath, T. F., Ecker, J. L., & Bateman, B. T. (2014) · Paediatric and Perinatal Epidemiology · doi:10.1111/ppe.12105 · Cited by 25 · see citing works
WORKING CONDITIONS AND ADVERSE PREGNANCY OUTCOME
Mozurkewich, E., Luke, B., Avni, M., & Wolf, F. M. (2000) · Obstetrics and Gynecology · doi:10.1097/00006250-200004000-00029 · Cited by 24 · see citing works
Trends and risk factors of maternal mortality in late-nineteenth-century Netherlands
Ory, B., & van Poppel, F. W. A. (2013) · The History of the Family · doi:10.1080/1081602x.2013.836457 · Cited by 22 · see citing works
The effects of working conditions and antenatal leave for the risk of premature birth in Berlin
Henrich, W., Schmider, A., Fuchs, I. B., Schmidt, F., & Dudenhausen, J. W. (2003) · Archives of Gynecology and Obstetrics · doi:10.1007/s00404-003-0487-8 · Cited by 21 · see citing works
The Impact of Paternity and Marital Status on Low Birth Weight and Preterm Births
Masho, S. W., Chapman, D. A., & Ashby, M. (2010) · Marriage & Family Review · doi:10.1080/01494929.2010.499319 · Cited by 20 · see citing works
Roche, A. F., & Sun, S. S. (2003) · Cambridge University Press eBooks · doi:10.1017/cbo9780511525681.004 · Cited by 20 · see citing works
Lower Preterm Birth Rates but Persistent Racial Disparities in an Open-Access Health Care System
Engelhardt, K. A., Hisle-Gorman, E. J., Gorman, G. H., & Dobson, N. R. (2018) · Military Medicine · doi:10.1093/milmed/usy012 · Cited by 20 · see citing works
Dye, T., & Oldenettel, D. (1996) · Seminars in Perinatology · doi:10.1016/s0146-0005(96)80026-7 · Cited by 16 · see citing works
Hourani, L. L., & Hilton, S. M. (2000) · Journal of Occupational and Environmental Medicine · doi:10.1097/00043764-200012000-00006 · Cited by 14 · see citing works
Working conditions, maternity legislation, and preterm birth
Berkowitz, G. S., & Papiernik, E. (1995) · Seminars in Perinatology · doi:10.1016/s0146-0005(05)80041-2 · Cited by 12 · see citing works
Low Birth Weight in Relation to the Interval between Pregnancies
Berkowitz, G. S., & Hatch, M. (1995) · New England Journal of Medicine · doi:10.1056/nejm199508103330614 · Cited by 11 · see citing works
Maternal identity formation in a military sample: a longitudinal perspective
Weis, K. L. (2019) · Carolina Digital Repository (University of North Carolina at Chapel Hill) · doi:10.17615/xdth-gz66 · Cited by 10 · see citing works
A Systematic Review of the Biopsychosocial–Spiritual Health of Active Duty Women
Lacks, M. H., Lamson, A. L. S., Rappleyea, D. L., Russoniello, C., & Littleton, H. (2017) · Military Psychology · doi:10.1037/mil0000176 · Cited by 8 · see citing works
ANTENATAL CARE OF THE PATIENT WITH PREVIOUS PRETERM PREMATURE RUPTURE OF MEMBRANES
Regenstein, A. C., & Main, D. M. (1992) · Obstetrics and Gynecology Clinics of North America · doi:10.1016/s0889-8545(21)00357-0 · Cited by 6 · see citing works
Military pregnancies and adverse perinatal outcome
Magann, E. F., Winchester, M. I., Carter, D., Martin, J. N., Jr., Nolan, T. E., & Morrison, J. C. (1996) · International Journal of Gynecology & Obstetrics · doi:10.1016/0020-7292(95)02530-8 · Cited by 4 · see citing works
Frankel, H., Hærvig, K. K., Flachs, E. M., Korshøj, M., Bertelsen, C., Backhausen, M. G., Sejbæk, C. S., & Begtrup, L. M. (2025) · Clinical Epidemiology · doi:10.2147/clep.s496585 · Cited by 3 · see citing works
Walker, S. P., Higgins, J. R., Permezel, M., & Brennecke, S. P. (1999) · Australian and New Zealand Journal of Obstetrics and Gynaecology · doi:10.1111/j.1479-828x.1999.tb03359.x · Cited by 3 · see citing works
Adverse working conditions and premature delivery.
Marbury, M. C. (1991) · American Journal of Public Health · doi:10.2105/ajph.81.8.973 · Cited by 3 · see citing works
Secular changes in growth and maturity
Roche, A. F., & Sun, S. S. (2003) · Cambridge University Press eBooks · doi:10.1017/cbo9780511525681.005 · Cited by 2 · see citing works
Roche, A. F., & Sun, S. S. (2003) · Cambridge University Press eBooks · doi:10.1017/cbo9780511525681.002 · Cited by 2 · see citing works
Risikosportarten in der Schwangerschaft
Kramarz, S. (2016) · Der Gynäkologe · doi:10.1007/s00129-016-3925-y · Cited by 2 · see citing works
Frankel, H. N., Sejbæk, C. S., Flachs, E. M., Korshøj, M., Toettenborg, S. S., Bonde, J. P., Deen, L., Petersen, J. A., Lund, C. B., & Begtrup, L. M. (2026) · Occupational and Environmental Medicine · doi:10.1136/oemed-2025-110712 · Cited by 1 · see citing works
Physical Activity And Maternal/Fetal Outcomes In A Pregnant Latina Population
Gollenberg, A. (2021) · Scholarworks (University of Massachusetts Amherst) · doi:10.7275/5645472 · Cited by 1 · see citing works
Kramarz, S., Kirschner, W., Mylonas, I. G., Heipertz-Hengst, C., & Friese, K. (2013) · Der Gynäkologe · doi:10.1007/s00129-013-3214-y · Cited by 1 · see citing works
Effect of active-duty military service on neonatal birth outcomes: a systematic review
Morris, K. A. L., & McKee, M. (2024) · BMJ Military Health · doi:10.1136/military-2023-002634 · Cited by 1 · see citing works
Lumsden, C. J., & Mason, K. T. (1994) · Air Medical Journal · doi:10.1016/s1067-991x(05)80265-2 · Cited by 1 · see citing works
Effects of Pregnancy on Responses to Exercise Above and Below the Ventilatory Anaerobic THreshold
Wolfe, L. A. (1999) · Defense Technical Information Center (DTIC)
Patterns of change in size and body composition
Roche, A. F., & Sun, S. S. (2003) · Cambridge University Press eBooks · doi:10.1017/cbo9780511525681.003
Roche, A. F., & Sun, S. S. (2003) · Cambridge University Press eBooks · doi:10.1017/cbo9780511525681.001
(2003) · Cambridge University Press eBooks · doi:10.1017/cbo9780511525681.007
Roche, A. F., & Sun, S. S. (2003) · Cambridge University Press eBooks · doi:10.1017/cbo9780511525681.006
McDonald, A. M. (2000) · doi:10.1002/9780470695005.ch16
- Authors
- Ramirez, G., Grimes, R. M., Annegers, J. F., Davis, B. R., & Slater, C. H.
- Affiliations
- Texas State University (US)
- Venue
- American Journal of Public Health
- Publisher
- American Public Health Association
- Published
- 1990-06
- Volume
- 80
- Issue
- 6
- Pages
- 728-730
- ISSN
- 0090-0036 (ISSN-L)
- 1541-0048
- PMC
- PMC1404715
- OpenAlex
- W1992846872
- Cited by
- 58
- References
- 4
- Citations by year
- 2026: 1 · 2025: 1 · 2024: 1 · 2021: 1 · 2019: 2 · 2018: 1 · 2017: 1 · 2016: 1 · 2014: 1 · 2013: 3
- FWCI
- 2.24
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- American Journal of Public Health (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- U.S. Department of Defense
- Topics
- Health Sciences › Medicine › Epidemiology › Preterm Birth and Chorioamnionitis
- Health Sciences › Health Professions › General Health Professions › Maternal and Neonatal Healthcare
- Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Infant Development and Preterm Care
- Keywords
- preterm birth, occupational physical activity, primigravida, military personnel, active duty women, risk factors
- MeSH terms
- Adult, Female, Humans, Infant, Newborn, Infant, Premature, Marriage, Military Personnel, Occupations, Pregnancy, Risk Factors, United States, Exercise
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