Evaluation of the age of onset of respiratory allergic symptomatology

Liccardi, Gennaro; Lobefalo, Gaetano; Russo, María Julieta; Manzi, Andrea; D’Amato, Gennaro

doi:10.1007/bf02291326

Cited by 6 publications

(4 citation statements)

References 6 publications

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“…Comparison with previous studies carried out in different geocHmatic environments certainly does not solve the problem, particularly in the light of the extreme methodological variability of these studies. In some cases, the mean ages relative to the different allergens were close to those we recorded or, at least, were distributed in a similar way (in Naples [15], for Parietaria and mites; in Salamanca [9] and Emilia-Romagna [14], for Gramineae and Artemisia), underlining the importance of the kind of allergen; in other cases, these mean ages differed to a greater or lesser extent from ours (the values were evidently higher in Naples [15] for Gramineae and in Emilia-Romagna [14] for mites), underlining, on the contrary, the importance of environmental factors. We should point out, however, that the validity of a comparison with the values of age of onset recorded in other influx studies is greatly limited by the different age distributions of the samples of patients they investigated.…”

Section: Discussionsupporting

confidence: 81%

“…Considering symptom and age distribution, we found among the subgroups of monosensitized patients a larger heterogeneity than among the subgroups of polysensitized patients (heterogeneity confirmed by the scant literature on this matter [9,14,15]). In particular, the mean ages at symptom onset proved to be significantly different also among polysensitized subgroups, but less clearly than among monosensitized subgroups.…”

Section: Discussionsupporting

confidence: 65%

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Age at symptom onset and distribution by sex and symptoms in patients sensitized to different allergens

Guerra

Allegra

Blasi

et al. 1998

Allergy

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The aim of our study was to analyze the clinical features, particularly the age at symptom onset, of allergic subjects (asthma and/or rhinitis) on the basis of the etiologic elements (sensitization to various allergens). We identified a group of monosensitized patients and a group of polysensitized patients. Within these groups, we identified subgroups of subjects monosensitized to one of the five main allergenic mixes (mites, Gramineae, trees, Parietaria, and Artemisia) and five subgroups of patients sensitized nonexclusively, that is, polysensitized, to the same allergens. The comparison between the two groups and among the various subgroups enabled us to conclude that: 1) mono- and polysensitized patients present some clinical features so different as to constitute two clearly distinct clinical groups 2) analysis of the clinical features associated with the sensitization to a specific allergen brings us to significantly different conclusions when we consider subgroups of monosensitized or polysensitized patients 3) the parameter "age at symptom onset" shows great heterogeneity among both the mono- and the polysensitized subgroups--in particular, the great differences in mean age among the monosensitized subgroups (trees>Artemisia>Parietaria>Gramineae>mites) appear very interesting and are open to various interpretative hypotheses 4) unlike the polysensitized group, in the monosensitized group and subgroups, mean age is similar between men and women and, only for tree- and Parietaria-monosensitive patients, also between asthmatic and rhinitic subjects.

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Section: Discussionsupporting

confidence: 81%

Section: Discussionsupporting

confidence: 65%

Age at symptom onset and distribution by sex and symptoms in patients sensitized to different allergens

Guerra

Allegra

Blasi

et al. 1998

Allergy

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“…P. judaica grows mainly in coastal Mediterranean areas, but has also been found in the UK (102). Sensitization to Parietaria pollen varies greatly according lo geographic area, Pollinosis caused by Parietaria is less frequent before the age of 10 years (72,103,104). The highest frequency of pollinosis caused by Parietaria occurs in subjects aged 10-30 years and is more frequent in populations of coastal towns than in those living in rural, noncoastal areas.…”

Section: Weedsmentioning

confidence: 99%

Pollen‐related allergy in Europe*

D’Amato

Spieksma

Liccardi

et al. 1998

Allergy

331

213

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The increasing mobility of Europeans for business and leisure has led to a need for reliable information about exposure to seasonal airborne allergens during travel abroad. Over the last 10 years or so, aeropalynologic and allergologic studies have progressed to meet this need, and extensive international networks now provide regular pollen and hay-fever forecasts. Europe is a geographically complex continent with a widely diverse climate and a wide spectrum of vegetation. Consequently, pollen calendars differ from one area to another; however, on the whole, pollination starts in spring and ends in autumn. Grass pollen is by far the most frequent cause of pollinosis in Europe. In northern Europe, pollen from species of the family Betulaceae is a major cause of the disorder. In contrast, the mild winters and dry summers of Mediterranean areas favor the production of pollen types that are rarely found in central and northern areas of the continent (e.g., the genera Parietaria, Olea, and Cupressus). Clinical and aerobiologic studies show that the pollen map of Europe is changing also as a result of cultural factors (e.g., importation of plants for urban parklands) and greater international travel (e.g., the expansion of the ragweed genus Ambrosia in France, northern Italy, Austria, and Hungary). Studies on allergen-carrying paucimicronic or submicronic airborne particles, which penetrate deep into the lung, are having a relevant impact on our understanding of pollinosis and its distribution throughout Europe.

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“…Sensitization to Parietaria pollen greatly varies according to the geographic area. Pollinosis caused by Parietaria is less frequent before the age of 10 years [63]. A greater frequency of reactivity to Parietaria in women than in men has been reported in Europe [20,64] and in the US [65].…”

Section: Clinical Datamentioning

confidence: 99%