Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Weather”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 361 records · Page 20Linked to original sources
PubMed2004

Weather conditions can influence rheumatic diseases.

In daily clinical practice, many patients attribute joint pain to weather conditions. There is little information published on this subject and most of it is contradictory. The objective of this study was to evaluate the effect of climatic conditions in rheumatic patients. The present work was carried out with patients attending the Instituto Poal de Reumatologia of Barcelona and the data were analyzed by Bioibérica Farma (Spain). It was a prospective, double-blind study including 92 patients with rheumatic disorders (80 with osteoarthritis, 12 with rheumatoid arthritis) compared to a control group of 42 subjects. The evaluation of pain (Huskisson VAS) and functional capacity (Health Assessment Questionnaire, HAQ) were determined daily during one month. The climatic variables studied were temperature, humidity and barometric pressure. The results obtained have been subject to binary regression analysis. Our data demonstrate that osteoarthritic patients experience increased joint pain in response to a decrease in pressure, indicating that low atmospheric pressure conditions exacerbate joint pain in these patients. Our work also suggests that some meteorological variables affect the occurrence of pain in rheumatoid arthritis, since we have found that low temperature increases the risk of joint pain. Therefore, these data suggest that in the future it may be possible to modulate pharmacological and non-pharmacological treatments for some osteoarthritic patients depending on the predictable weather conditions in order to avoid, as much as possible, the disease-associated joint pain and functional incapacity, thus improving patients' quality of life.

Arthritis, Rheumatoid↗
PubMed2005

Nature and dynamic behaviour of organic surface layer deposits during dry weather.

In-situ observations were performed at two different spatial and temporal scales, in order to get a better identification of the nature of the organic layer situated at the water-sediment interface, and which had previously been identified as major of combined sewer overflows organic loads. Its composition and its build up mechanisms during dry weather periods are presented. Results showed that the concept of dry weather accumulation and more generally the way organic sewer sediments are modelled needs to be reconsidered.

Organic Chemicals↗
PubMed2005

[Influence of weather factors on suicidal hangings].

The paper presents a certain biometeorological problem. The evaluation of influence of weather factors on frequency of suicidal cases by hanging in the area of Cracow City during 1991-2002 was examined. Rapid changes of air pressure, air temperature, hot, sweltering and sultry days, very frosty days, days with strong or foehn wind, days with thunderstorms, fog and haze were selected as unfavourable weather factors. They give an occasion for strong psychical stress. The results of detailed investigations are next: more frequency of cases of suicide during the advance of cold fronts, rapid decreases of air pressure during hot, sweltering and sultry days, days with thunderstorms and foehn winds in the Tatra Mountains.

Catchment Area, Health↗
PubMed2006

[The influence of weather conditions on the epidemiology of vector-borne diseases by the example of West Nile fever in Russia].

Climate changes must influence the incidence of vector-borne infections, but their effects cannot be revealed due to lack of long-term observations. The impact of short-term weather changes may be used as a model. In Russia the biggest numbers of clinical cases of mosquito-borne West Nile infection were registered in 1999 in Volgograd and Astrakhan regions. The analysis of climatic dataset since 1900 shows that 1999 was the hottest year in Volgograd in the 20th century due to a very mild winter (December-March) and a rather hot summer (June-September). The author of the article puts forward a hypothesis that high winter temperatures favored the survival of over-wintering mosquito vectors, and high summer temperature facilitated the growth of the virus in the mosquitoes, as well as propagation of the mosquitoes themselves. The author assumes that conventional threshold temperatures for "beneficial for WNF conditions" in Russia are > or = 3 degrees C in winter, and > or = 22 degrees C in summer. These conditions coincided only in 1948 and 1999. In Astrakhan the "beneficial for WNF conditions" were registered in 30 out of 147 years of observation, and in 12 years between 1964 and 2003. This is not surprising that Astrakhan region is endemic for WNF in accordance with clinical and epidemiological data collected since the sixties. These findings give some hints on the WNF predisposing factors, as well as possibility of weather surveillance and prediction of WNF outbreaks in temperate climatic zones such as Southern Russia.

Animals↗
PubMed1989

Effects of weathering on fabrics treated with permethrin for protection against mosquitoes.

Permethrin-impregnated and untreated fabrics were evaluated for their toxic and repellent effects against Anopheles stephensi and Aedes aegypti after both types of fabrics were subjected to accelerated weathering for 9 weeks, under a simulated wet/tropical environment. The toxic (knockdown) effect of permethrin-impregnated fabrics against both species of mosquitoes diminished rapidly after 1 week compared to the repellent effect. After 6 weeks of weathering, the remaining low amounts of permethrin provided fair protection from mosquito bites; however, no knockdown was observed at those levels. Permethrin-treated fabric was effective in providing protection from mosquito bites and appears to be a means of attenuating both the nuisance effects and, possibly, disease transmission by mosquitoes.

Animals↗
PubMed1988

[Effect of weather conditions in an epidemic season on the nature of the morbidity of hemorrhagic fever with renal syndrome].

The epidemic manifestation of the most active natural foci of HFRS in the USSR on the territory of Bashkiria is described. The authors compare two epidemic seasons of 1975-1976 and 1977-1978. Besides the number of rodents, the rise of morbidity is influenced by their early multiplication and weather conditions. The early appearance of the stable snow cover facilitates a rapid drop in the number of NFRS cases as early as in October, while prolonged autumn with rains, snow, periods of thaw and ice-covered ground leads to a rise in NFRS morbidity occurring in autumn and winter and ending only in March. Weather conditions also influence the epidemiological structure of morbidity.

Age Factors↗
PubMed1977

[New methods in the treatment of weather sensitivity].

Changing weather fronts produce severe changes of daily rhythms. Electrical impulses arrive 1-2 days before the weather and create either atmospherics or "positive ions". They are responsible for the epidemic appearance of migraine and of thrombo-embolism. The impact of atmospheric electricity has been assessed in 1000 patients by daily urinalysis of serotonin, 5-HIAA, adrenaline, noradrenaline, histamine, thyroxine, 17-KS, 17-OH, Na, K, creatinine and diureses. The changes found in these 12 parameters allowed a classification of heat reactions into three clinical entities: 1. serotonin hyperproduction causing a typical irritation syndrome: 2. adrenal deficiency producing a typical exhaustion syndrome; 3. hyperthyroidism "Forme fruste" with subclinical "apathetic" thyroid symptoms. These sufferings, typical for Föhn, Tramontana, Sirocco, Sharkiye, Chamssin, Sharav and Santa Ana Winds, are mainly due to positive ionisation of the air. They can be prevented by negative ionising apparatuses or specific drug treatment.

Electric Stimulation Therapy↗
PubMed1985

Otitis media: seasonality and absence of association with weather.

Daily infectious illness episodes were recorded for all family members in two similar studies in Seattle. Daily weather conditions were obtained for the same time period, covering seven years. Otitis media was reported mainly in children under 10 years of age, with a peak incidence between six months and one year. Seasonal variation in the incidence of otitis media was pronounced. No association was found between the daily incidence of otitis media and the daily weather conditions.

Child↗
PubMed1979

[Local weather-condition and behaviour of anthropogenous aerosols : two examples (author's transl)].

It is today accepted that the developing and propagating of epidemic diseases of the airways are sometimes related to some weather conditions and that, in this context, the complex aerosols such as fogs and smogs can play an important part in carrying viruses and bacteria. This communication intends to demonstrate two examples of how weather conditions can and must help to interprete the observations and measurements done on particles of atmospheric aerosols which are more or less derived from human activity. One of the examples is related to the study of variations of numerical concentrations of particles in an atmosphere under-saturated with respect to water. The other example is related to the development and extension of a phenomenon favouring the fog formation from a localized industrial source.

Aerosols↗
PubMed1981

[The effect of weather on odontogenic abscesses (author's transl)].

596 acute odontogenic abscesses treated from 1974 to 1978 in the Freiburg Dental Clinic have been evaluated from the medical meteorological aspect (decimal classification). Retrospective study of coincidence led to the result that significantly more abscesses occurred on transition from anticyclonic weather conditions to cyclonic conditions with intensified advection of warm air, whereas in weather conditions with cold air advection the incidence of abscesses was distinctly reduced.

Humans↗
PubMed1981

The protective effect of a cold weather mask on exercised-induced asthma.

The authors investigated the usefulness of a cold weather mask in reducing exercise-induced bronchospasm. Ten asthmatic subjects were selected because of previously demonstrated exercise-induced bronchospasm. Airway responses to submaximal exercise were measured on four separate days. Exercise was performed on the first two days at ambient temperature in a centrally air-conditioned laboratory and on the second two days in a refrigerated room. Exercise challenge was similar on each of the two days of the separate environmental conditions, with the exception that a mask was worn on one of the two days. Pulmonary function was measured using maximal and partial expiratory flow volume curves before and after exercise. On both of the days during which subjects exercised without a mask, significant decreases in all pulmonary function parameters occurred. Protection was seen under both conditions, but was more complete in the cold. These studies demonstrate the therapeutic potential of cold weather masks in protecting asthmatics against the effects of exercise and cold air.

Adolescent↗
PubMedDate not supplied

[Is premature labor weather-dependent? Correlation of premature labor with meteorologic data].

A preselected cluster of births (12351-4719 = 7632 = n) which was divided into 3 groups (delivery between 28-32 gestational weeks, 33-37 gestational weeks and > 37 gestational weeks) has been correlated with six major weather situations of the four meteorologically defined seasons. The correlation was made with the date of birth and with one day as well as two days before. The duration of pregnancy was longer by an average of 0.45 weeks (i.e. 3 days) when the major weather situation did not change for more than 8 days. The group with delivery 28-32 weeks is more sensitive to meteorological influences than the group with delivery 33-37 weeks. During cyclonic as well as during anticyclonic atmospheric drifts the groups 28-33 wks and 33-37 wks have been statistically over-represented. As far as the season is concerned over-representation is found in autumn. We conclude that pregnancies at risk of premature delivery should be followed up in short intervals during cyclonic and anticyclonic atmospheric drifts especially during the autumn season.

Austria↗
PubMed1995

Effect of time of year, weather, and the pattern of auction market sales on fatal fibrinous pneumonia (shipping fever) in calves in a large feedlot in Alberta (1985-1988).

A total of 58,885 spring-born calves entering a large commercial feedlot in southwestern Alberta were studied to examine the associations between shipping fever mortality and the pattern of calf sales at the auction markets, time of year, and weather. The observational study followed calves purchased from 42 auction markets in the 4 western provinces between September 1 and December 31 in each of the years from 1985 to 1988. Calf sales at the auction markets consistently peaked during the last week of October and the first week of November. Calves entering the feedlot in November had a risk of fatal shipping fever 2 to 8 times greater than calves entering in September or December. The pattern was the same for all 4 years, with maximum risk occurring 2 to 4 weeks after the peak time for calf sales at the markets. A number of factors could have contributed to this pattern, including changes in transport truck availability, changes in the density of calves at the markets, changes in population dynamics at the feedlot that affected feedlot crew efficiency, and weather. The finding that the risk of fatal shipping fever appears to increase significantly as the feedlot fills with calves in the fall deserves the attention of feedlot owners, so they can design their treatment strategies appropriately, and of researchers, who may gain useful knowledge about the natural history of the disease by investigating why this change in risk occurs.

Alberta↗
PubMed1997

Joint pain and weather. A critical review of the literature.

Many people believe that weather conditions can influence joint pain, but science offers no proof. If the phenomenon were real, cause-and-effect mechanisms might provide clues that would aid joint pain treatment. Literature on the subject is sparse, conflicting, and vulnerable to bias, and further physiologic investigations are not likely to produce useful information. However, for patients who believe that weather can influence their pain, the causes may be unknown, but the effect is real.

Arthritis, Rheumatoid↗
PubMed1998

Inclement weather and the risk of hip fracture.

An association between inclement weather and hip fractures has been documented, but specific subgroups of the population at particular risk have not been identified. We obtained information that included hospitalization data on all hip fractures in Montreal from 1982 to 1992, and meteorologic data on the amount of snow, rain, and freezing rain and the temperature on each day of study. We used a cross-level design to examine the association between the rate of hip fractures and the meteorologic conditions on the day of the accident in both sexes and five age strata. There were a total of 18,455 hip fractures over the 4,018-day study period. We found a cyclical pattern in occurrence of hip fractures, with the peak occurring in mid-December among women and the first week of January among men. The pattern was less pronounced among women than men, with peak-to-trough ratios of 1.2 and 1.4, respectively. Days with lower temperatures, snow, and freezing rain were associated with increased rates of hip fracture. The meteorologic condition carrying the greatest risk was freezing rain. The association between inclement weather and hip fractures was stronger among younger persons, both women and men. After adjusting for meteorologic variables, there remained increases in winter of 5% among women and 12% among men. The residual effect of winter may be related to cold temperatures or due to an accumulation of ice and snow even on fine days. Other possible mechanisms to explain the residual effect of winter include slower reaction times and winter bone loss, both of which could affect indoor as well as outdoor falls.

Age Factors↗
PubMed1976

[Suicide and the weather. Risk of suicide in mental disorders and possibilities for prevention].

The risk of suicid in psychic disorders and possibilities of suicid prophylaxis The mysterious connection between weather and suicidal acts has been of particular interest at all times. In the past years extensive studies were carried out. But often the results were differing from each other. Nowadays, every person, committing suicid is regarded as psychically disturbed. Therefore, it may be better to analyse the diagnoses retrospectively and to determine which type of psychiatric illness is reacting significantly to which meteorological event. The results of this study using the "coincidence method" (n = 17 268) make it possible to give exact clues, which meteorological event may be dangerous to which kind of psychiatric illness. The time before a change of weather is of importance. The daily medical-meteorological telephone-service in the Federal Republic of Germany (bioprog) is therefore a biometeorological contribution to the prophylaxis of suicides.

Alcoholism↗
PubMed1976

Advanced weathering cracks as an improvement on split-line preparations for analysis of structural orientation in compact bone.

Weathering cracks have been demonstrated to be equivalent to split-lines in compact bone. The amount of cracking becomes more extensive with time. Advanced weathering cracks have the potential for giving more complete information on orientation patterns than split-lines. They can also be superior in accuracy and objectivity of results obtained, in preserving the original condition of the bone, and in elimination of much of the work involved in making split-line preparations.

Bone Development↗
PubMed2002

Does warm weather climate affect eating disorder pathology?

OBJECTIVE: The aim of this study was to examine whether residing in a year-round warm weather climate is related to eating disorder pathology. METHOD: College females from a southeastern and a northeastern region of the United States were compared on body mass index, the Bulimia Test-Revised, the Body Shape Questionnaire, and the Body Image Avoidance Questionnaire. RESULTS: Females residing in the southeastern region were of significantly lower body weight, engaged in more frequent bulimic behaviors (e.g., bingeing and inappropriate compensatory behaviors), and displayed significantly greater concern regarding their body shape compared with the females residing in the northeastern region. DISCUSSION: Findings obtained in this study indicate that residing in a warm weather climate may produce a heightened risk for development of eating disorder pathology.

Adolescent↗