The effect of changes in atmospheric pressure on the occurrence of the spontaneous onset of labor in term pregnancies

Noller, Kenneth L.; Resseguie, Laurence J.; Vossb, Valerie

doi:10.1016/s0002-9378(96)70661-0

Cited by 27 publications

(20 citation statements)

References 8 publications

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“…Among reports demonstrating an association between meteorological factors and parturition were some showing a positive effect of falling barometric pressure (King et al 1997;Polansky et al 1985) and at least one showing an effect in the opposite direction (Noller et al 1996). Other studies identified no independent relationship between spontaneous labor or pre-labor rupture of membranes and either barometric pressure or phases of the moon (Trap et al 1989;Stern et al 1988;Marks et al 1983;Morton-Pradhan et al 2005).…”

Section: Discussionmentioning

confidence: 99%

“…A potentially useful impact on the staffing of labor rooms has been cited (Noller et al 1996;Morton-Pradhan et al 2005); however, even the largest effects demonstrated in the literature are too small to inform staffing decisions. More importantly, perhaps, this avenue of research has the potential to answer remaining questions regarding the physiology of parturition in both normal and pathological circumstances, areas that remain poorly understood despite decades of research.…”

Section: Discussionmentioning

confidence: 99%

“…To account for such effects, models were constructed that included lags of 0, 3, 6, 12 or 24 h. Three-hour intervals were chosen for the initial lag times because of prior studies that found significant associations between barometric pressure changes and labor onset (Noller et al 1996) or rupture of membranes (Polansky et al 1985) within this time frame.…”

Section: Construction Of Predictive Modelsmentioning

confidence: 99%

“…There is a persistent perception that the onset of labor is influenced by environmental factors such as oncoming storms or phases of the moon. Yet the relatively scant medical literature on the topic has yielded mixed judgments on that perception, with only approximately half of published studies demonstrating statistically significant associations between environmental factors, in particular falling barometric pressure, and the onset of labor (Steinman and Kleiner 1978;Driscoll 1995;King et al 1997;Noller et al 1996;Trap et al 1989;Stern et al 1988;Polansky et al 1985;Marks et al 1983). …”

Section: Introductionmentioning

confidence: 99%

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Meteorological factors and timing of the initiating event of human parturition

et al. 2010

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The aim of this study was to determine whether meteorological factors are associated with the timing of either onset of labor with intact membranes or rupture of membranes prior to labor-together referred to as 'the initiating event' of parturition. All patients delivering at Evanston Hospital after spontaneous labor or rupture of membranes at ≥20 weeks of gestation over a 6-month period were studied. Logistic regression models of the initiating event of parturition using clinical variables (maternal age, gestational age, parity, multiple gestation and intrauterine infection) with and without the addition of meteorological variables (barometric pressure, temperature and humidity) were compared. A total of 1,088 patients met the inclusion criteria. Gestational age, multiple gestation and chorioamnionitis were associated with timing of initiation of parturition (P < 0.01). The addition of meteorological to clinical variables generated a statistically significant improvement in prediction of the initiating event; however, the magnitude of this improvement was small (less than 2% difference in receiver-operating characteristic score). These observations held regardless of parity, fetal number and gestational age. Meteorological factors are associated with the timing of parturition, but the magnitude of this association is small.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Construction Of Predictive Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Meteorological factors and timing of the initiating event of human parturition

et al. 2010

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“…[6][7][8][9] Further, pregnancy complications may occur as a result of exacerbations of chronic problems, due to extreme variations of several meteorological parameters or weather perturbations. [8][9][10][11][12][13][14][15][16] Recently, Yackerson et al 16 found that an ensemble of meteorological variables affects the frequency of placental abruption and preeclampsia. Specifically, higher rates were documented during the spring and autumn seasons.…”

Section: Introductionmentioning

confidence: 99%

The influence of meteorological factors on the emergence of preterm delivery and preterm premature rupture of membrane

2008

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Objective: To evaluate the influence of changes in the atmospheric state on the incidence of preterm delivery (PTD) and preterm premature rupture of membrane (PPROM).Study Design: The hospital records of PTD and/or PPROM over the year 1999 were reviewed. The current meteorological state was described by a set of parameters and their diurnal and seasonal variations. Multivariate analysis, time series approach and Poisson regression were used.Result: PTD occurrence was correlated with humidity and maximum temperature (P<0.01), its rise preceded their sharp variations by 3 days (P<0.01). PPROM was influenced by the variations in the weather state: desert heat wave arrival (P ¼ 0.093), strong winds, overall daily differences of humidity and temperature (all with P<0.05). Conclusion:The rates of PTD and PPROM are affected by an ensemble of meteorological variables, specific for each disorder. Obstetricians should be aware of the influence of unstable weather on PTD and PPROM rates, especially in the spring and autumn.

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Atmospheric conditions, lunar phases, and childbirth: a multivariate analysis

et al. 2011

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Our objective was to assess extrinsic influences upon childbirth. In a cohort of 1,826 days containing 17,417 childbirths among them 13,252 spontaneous labor admissions, we studied the influence of environment upon the high incidence of labor (defined by 75th percentile or higher), analyzed by logistic regression. The predictors of high labor admission included increases in outdoor temperature (odds ratio: 1.742, P = 0.045, 95%CI: 1.011 to 3.001), and decreases in atmospheric pressure (odds ratio: 1.269, P = 0.029, 95%CI: 1.055 to 1.483). In contrast, increases in tidal range were associated with a lower probability of high admission (odds ratio: 0.762, P = 0.030, 95%CI: 0.515 to 0.999). Lunar phase was not a predictor of high labor admission (P = 0.339). Using multivariate analysis, increases in temperature and decreases in atmospheric pressure predicted high labor admission, and increases of tidal range, as a measurement of the lunar gravitational force, predicted a lower probability of high admission.

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The effect of changes in atmospheric pressure on the occurrence of the spontaneous onset of labor in term pregnancies

Cited by 27 publications

References 8 publications

Meteorological factors and timing of the initiating event of human parturition

Meteorological factors and timing of the initiating event of human parturition

The influence of meteorological factors on the emergence of preterm delivery and preterm premature rupture of membrane

Atmospheric conditions, lunar phases, and childbirth: a multivariate analysis

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