ArticlePloS one2020
First stage progression in women with spontaneous onset of labor: A large population-based cohort study.
Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.
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Who cites it
18 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.
- Routine vaginal examinations compared to other methods for assessing progress of labour to improve outcomes for women and babies at term.The Cochrane database of systematic reviews · 2022Pooled it
- Impact of active phase duration on neonatal and maternal adverse outcomes: A systematic analysis of parity stratification, body mass index interaction, and predictive modeling in a retrospective cohort.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2026Article
- Effects of World Health Organization labor care guide on maternal and neonatal outcomes: A systematic review and meta-analysis.International journal of reproductive biomedicine · 2025Article
- Article
- A salutogenic approach to early labor midwifery care in Denmark, Sweden, and Switzerland: A qualitative study.European journal of midwifery · 2025Article
- Risk of postpartum hemorrhage with increasing first stage labor duration.Scientific reports · 2024Article
- Labor patterns of spontaneous first-stage labor in Chinese women with normal neonatal outcomes.PloS one · 2024Observational
- Labor curves based on cervical dilatation over time and their accuracy and effectiveness: A systematic scoping review.PloS one · 2024Article
- Delivery Progress, Labor Interventions and Perinatal Outcome in Spontaneous Vaginal Delivery of Singleton Pregnancies between Nulliparous and Primiparous Women with One Previous Elective Cesarean Section: A Retrospective Comparative Study.Life (Basel, Switzerland) · 2023Article
- First stage of labour duration and associated risk of adverse neonatal outcomes.Scientific reports · 2023Article
- The evolution of the labor curve and its implications for clinical practice: the relationship between cervical dilation, station, and time during labor.American journal of obstetrics and gynecology · 2023Review
- Latent phase duration and associated outcomes: a contemporary, population-based observational study.American journal of obstetrics and gynecology · 2023Observational
- The Pathophysiology of Labor Dystocia: Theme with Variations.Reproductive sciences (Thousand Oaks, Calif.) · 2023Review
- Article
- Use and Effects of Augmentation of Labor with Oxytocin: A Single-Center, Retrospective, Case-Control Study of 4350 Women in Warsaw, Poland, 2015-2020.Medical science monitor : international medical journal of experimental and clinical research · 2022Article
- Prevalence of amniotomy in Sweden: a nationwide register study.BMC pregnancy and childbirth · 2022Article
- Labor dystocia and oxytocin augmentation before or after six centimeters cervical dilatation, in nulliparous women with spontaneous labor, in relation to mode of birth.BMC pregnancy and childbirth · 2022Article
- Association of body mass index and maternal age with first stage duration of labour.Scientific reports · 2021Article
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo describe the duration, progression and patterns of first stage of labor among Swedish women.
designPopulation-based cohort study. POPULATION: Data from Stockholm-Gotland Obstetric Cohort 2008-2014 including ¼ of all births in Sweden, the final sample involved a total of 85,408 women with term, singleton, vertex, live fetuses experiencing spontaneous labor onset and vaginal delivery with normal neonatal outcomes.
main outcome measuresTime to progress during first stage of labor using three approaches: 1) Traverse time in hours to progress centimeter to centimeter, 5th, 50th (and 95th percentile); 2) Dilation curves for different percentiles, and; 3) Cumulative duration for the 95th percentile by parity and dilation at admission.
resultsVariation in both the total duration and the trajectory of cervical change over time is large. Similar to the general held view, the rate of cervical dilation accelerates at 5-6 centimeters. Among nulliparous women, the median time found in our population was faster than their counterparts in studies conducted on American and African cohorts. Among nulliparous and multiparous women our data suggest that the median cervical change over time is faster than 1 cm per hour during the first stage of labor. However, traverse time of cervical change at and beyond the 95th percentile is longer than 1 cm per hour.
conclusionsLabor progression varies widely and labors experiencing a prolonged first stage can still result in normal outcomes. The assumption of 1 cm per hour cervical dilation rate for the first stage of labor may not be universally meaningful. There are differences in progression for women during first stage of labor in different populations. For prolonged labor progression to be more clinically meaningful, the association with adverse birth outcomes needs to be further investigated in specific populations.
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