Prevalence of self-reported stomach symptoms after consuming milk among indigenous Sami and non-Sami in Northern- and Mid-Norway – the SAMINOR study

Hansen, Ketil Lenert; Brustad, Magritt; Johnsen, Knut

doi:10.3402/ijch.v74.25762

Cited by 8 publications

(10 citation statements)

References 20 publications

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“…However, their study did not measure pain located in chest, stomach and pelvic, that is, sites where our study found ethnic differences. Our finding of higher prevalence of reported stomach pain is in accordance with a study based on SAMINOR data (33). In the latter study, stomach pain was associated with milk intake.…”

Section: Discussionsupporting

confidence: 93%

“…Contrary to the findings mentioned above, Sami reported general abdominal pain more often than the majority Norwegian population. More stomach symptoms among the Sami were found after consuming milk, suggesting a higher prevalence of milk intolerance among the Sami than the majority population (33). Other studies among Sami in Finland and Russia confirm the higher prevalence of lactose intolerance compared to the majority populations (34,35).…”

mentioning

confidence: 99%

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Childhood violence and adult chronic pain among indigenous Sami and non-Sami populations in Norway: a SAMINOR 2 questionnaire study

Schei

Hansen

Sørlie

et al. 2016

International Journal of Circumpolar Health

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BackgroundInternationally, studies have shown that childhood violence is associated with chronic pain in adulthood. However, to date, this relationship has not been examined in any indigenous population.ObjectiveThe main objectives of this study were to investigate the association between childhood violence and reported chronic pain, number of pain sites and the intensity of pain in adulthood in indigenous Sami and non-Sami adults, and to explore ethnic differences.DesignThe study is based on the SAMINOR 2 questionnaire study, a larger population-based, cross-sectional survey on health and living conditions in multiethnic areas with both Sami and non-Sami populations in Mid- and Northern Norway. Our study includes a total of 11,130 adult participants: 2,167 Sami respondents (19.5%) and 8,963 non-Sami respondents (80.5%). Chronic pain was estimated by reported pain located in various parts of the body. Childhood violence was measured by reported exposure of emotional, physical and/or sexual violence.ResultsChildhood violence was associated with adult chronic pain in several pain sites of the body regardless of ethnicity and gender. Childhood violence was also associated with increased number of chronic pain sites and higher pain intensity compared to those not exposed to childhood violence. However, among Sami men, this association was only significant for pain located in chest, hips/legs and back, and non-significant for increased number of chronic pain sites (adjusted model), and higher pain intensity.ConclusionRespondents exposed to childhood violence reported more chronic pain in several parts of the body, increased number of chronic pain sites and more intense pain in adulthood than respondents reporting no childhood violence. However, among Sami men, this association was weaker and also not significant for increased number of chronic pain sites and higher pain intensity.

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Section: Discussionsupporting

confidence: 93%

mentioning

confidence: 99%

Childhood violence and adult chronic pain among indigenous Sami and non-Sami populations in Norway: a SAMINOR 2 questionnaire study

Schei

Hansen

Sørlie

et al. 2016

International Journal of Circumpolar Health

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“…6 Otro ejemplo son los indígenas sami de Noruega: la prevalencia de IL en hombres fue de 17 % y en mujeres, de 27.1 %. 7 Parece que el consumo poco frecuente de LV, además de la herencia, está relacionado con mayor prevalencia de IL.…”

Section: Discussionunclassified

Alergia a la proteína de la leche de vaca o intolerancia a lactosa: un estudio transversal en estudiantes universitarios

Domínguez-García

Flores-Merino

Morales-Romero

et al. 2019

RAM

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Antecedentes: El origen étnico y la zona geográfica influyen en la frecuencia de la alergia a la proteína de leche de vaca (APLV) y de intolerancia a la lactosa. Faltan datos epidemiológicos en población no pediátrica.Objetivo: Determinar la prevalencia de APLV e intolerancia a la lactosa en estudiantes universitarios.Métodos: Estudio transversal de 1200 estudiantes de 18 a 25 años. Se aplicó cuestionario estructurado para identificar manifestaciones clínicas desencadenadas por la ingesta de leche de vaca y fueron categorizadas como relacionadas con APLV o intolerancia a la lactosa.Resultados: 30 estudiantes cubrieron criterios para APLV (prevalencia de 2.5 %; IC 95 % = 1.7-3.6) y 128 para intolerancia a la lactosa (prevalencia de 10.7 %, IC 95 % = 9.0-12.5). Los estudiantes con APLV tuvieron mayor frecuencia de historia personal de alergia a alimentos y alergia a ácaros del polvo casero, comparados con los estudiantes con intolerancia a la lactosa. El prurito oral y las molestias cutáneas y respiratorias predominaron en la APLV. El cólico abdominal y las flatulencias predominaron en la intolerancia a la lactosa.Conclusiones: La intolerancia a la lactosa fue más frecuente que la APLV; se observó en uno de cada 10 estudiantes y la APLV en uno de cada 400.

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“…Milk and milk products have been described as triggers of abdominal pain in northern European populations, particularly amongst females [ 25 , 26 ]. In our study, nearly all children with adolescent-onset milk-related symptoms reported gastrointestinal symptoms, of whom many had recurrent abdominal pain.…”

Section: Discussionmentioning

confidence: 99%

Milk-Related Symptoms and Immunoglobulin E Reactivity in Swedish Children from Early Life to Adolescence

et al. 2018

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Cow’s milk often causes symptoms in infants. Whereas, some continue to experience symptoms through childhood, others become tolerant. Yet, the ages at which persistence and tolerance occur are less clear. Thus, we examined the age of onset and persistence of milk-related symptoms from early life to adolescence, and Immunoglobulin E (IgE) milk reactivity, focusing on gender differences in a large, population-based birth cohort. Overall, 20.0% (537/2985) of children, with a comparable gender distribution, had early life milk-related symptoms. At 16y, approximately 2% (62/2985) children had persistent symptoms and high milk IgE levels (e.g., median at 4 years: 1.5 kUA/L) that were beginning in early life. In contrast, 94% had transient symptoms and low median IgE levels (early life: 0.63 kUA/L, 8y: 0.72 kUA/L; 16 years: 1.1 kUA/L). Also, at 16 years, approximately 6% of females and 3% of males without any previously reported symptoms reported adolescent-onset of symptoms (p < 0.001). Such symptoms were almost exclusively gastrointestinal symptoms and were not associated with detectable IgE. In conclusion, early life milk-related symptoms are common, although most cases are transient by 16 years. Twice as many females vs. males report adolescent-onset symptoms, and particularly gastrointestinal symptoms. Children with persistent symptoms have both a higher prevalence and higher milk IgE levels, as compared to other phenotypes.

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Prevalence of self-reported stomach symptoms after consuming milk among indigenous Sami and non-Sami in Northern- and Mid-Norway – the SAMINOR study

Cited by 8 publications

References 20 publications

Childhood violence and adult chronic pain among indigenous Sami and non-Sami populations in Norway: a SAMINOR 2 questionnaire study

Childhood violence and adult chronic pain among indigenous Sami and non-Sami populations in Norway: a SAMINOR 2 questionnaire study

Alergia a la proteína de la leche de vaca o intolerancia a lactosa: un estudio transversal en estudiantes universitarios

Milk-Related Symptoms and Immunoglobulin E Reactivity in Swedish Children from Early Life to Adolescence

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