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Cardiorespiratory fitness of finnish adolescents.

https://arctichealth.org/en/permalink/ahliterature302313
Source
International Journal of Sports Medicine. 2007 Oct;28(10):853-9. Epub 2007 Apr 13.
Publication Type
Article
Date
2007
Author
Tammelin T
Remes J
Kujala V
Oksa J
Näyhä S
Zitting P
Järvelin MR
Source
International Journal of Sports Medicine. 2007 Oct;28(10):853-9. Epub 2007 Apr 13.
Date
2007
Language
English
Geographic Location
Finland
Publication Type
Article
Keywords
Adolescent
Bicycling
Cardiovascular System
Cohort Studies
Exercise Test
Female
Finland
Physiology
Methods
Heart rate
Humans
Male
Oxygen
Consumption
Physical Fitness
Respiratory System
Abstract
We evaluated the accuracy of a submaximal cycle ergometer test to assess cardiorespiratory fitness in adolescents and provided population-based reference values. In a health study of the Northern Finland birth cohort born in 1985 - 1986 (NFBC 1986), cardiorespiratory fitness of 5375 males and females aged 15 to 16 years was measured by a submaximal cycle ergometer test by using a two-stage exercise protocol designed for this survey. A total of 4903 subjects performed two work stages. Maximal workload and peak oxygen consumption were calculated on the basis of heart rate responses by the WHO extrapolation method. An additional 472 subjects were able to finish only one work stage. For them, peak oxygen uptake was calculated by the Astrand nomogram. To evaluate the accuracy of submaximal testing, a validation sample of 90 subjects carried out both a submaximal test and a maximal cycle ergometer test with direct measurement of peak oxygen uptake. The WHO method proved to estimate peak oxygen uptake with reasonable accuracy. The Astrand nomogram method overestimated peak oxygen uptake considerably, and therefore a new single-stage regression method was applied to calculate maximal workload and peak oxygen consumption. Reference values of cardiorespiratory fitness were provided for 2690 males and 2685 females aged 15 to 16 years.
PubMed ID
17436191 View in PubMed
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Cardiovascular risk factor patterns and their association with diet in Saami and Finnish reindeer herders

https://arctichealth.org/en/permalink/ahliterature102174
Source
Pages 301-304 in G. Pétursdóttir et al., eds. Circumpolar Health 93. Proceedings of the 9th International Congress on Circumpolar Health, Reykjavík, Iceland, June 20-25, 1993. Arctic Medical Research. 1994;53(Suppl.2)
Publication Type
Article
Date
1994
play a role, since they reduce atherogeneity and thrombogeneity of the diet. References 1. Nayha S. Geographical variations in cardiovascular mortality in Finland, 1%1-1985. Scand J Soc Med 1989; (Suppl) 40. Pp.48. Chapter 4: Nutrition and health of indigenous poplllatioo 2. Nayha S, Hassi
  1 document  
Author
Näyhä, S
Sikkilä, K
Hassi, J
Nayha, S
Sikkila, K
Author Affiliation
Regional Institute of Occupational Health, Oulu Finland
Department of Public Health Science and General Practice, University of Oulu, Finland
Source
Pages 301-304 in G. Pétursdóttir et al., eds. Circumpolar Health 93. Proceedings of the 9th International Congress on Circumpolar Health, Reykjavík, Iceland, June 20-25, 1993. Arctic Medical Research. 1994;53(Suppl.2)
Date
1994
Language
English
Geographic Location
Finland
Publication Type
Article
Digital File Format
Text - PDF
Keywords
Antioxidants
Cardiovascular disease
Diet
Finland
Health
Reindeer herders
Reindeer meat
Risk factors
Saami
Serum cholesterol
Abstract
Cardiovascular risk factors and their association with diet were examined in Saami (Lapp) and Finnish reindeer herders (total sample size 2705). The Saami men showed lower systolic blood pressure (130 mmHg) than the Finns (137 mmHg), higher serum total cholesterol (6.92 vs. 6.51 mmol/l) and triglycerides (1.32 vs. 1.11 mmol/l), and more Saami than Finnish men were smokers (34% vs. 27%). Subjects eating reindeer meat daily showed serum cholesterol 0.6 mmol/l higher than those who did so once a month or more rarely, the association being independent of age, season, body mass index, or consumption of coffee, milk, bread, fish, or alcohol. The high content of antioxidants of the Saami diet might explain why cardiovascular diseases are relatively uncommon in the Saami area despite the adverse risk factor pattern.
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Cold induced discomfort, performance degradation and damages experienced by forestry workers

https://arctichealth.org/en/permalink/ahliterature102182
Source
Pages 334-336 in G. Pétursdóttir et al., eds. Circumpolar Health 93. Proceedings of the 9th International Congress on Circumpolar Health, Reykjavík, Iceland, June 20-25, 1993. Arctic Medical Research. 1994;53(Suppl.2)
Publication Type
Article
Date
1994
  1 document  
Author
Rintamäki, H
Rissanen, S
Norola, S
Latvala, J
Näyhä, S
Rintamaki, Hi
Nayha, S
Author Affiliation
Oulu Regional Institute of Occupational Health, Oulu, Finland
Veitsiluoto Oy, Kemi, Finland
Source
Pages 334-336 in G. Pétursdóttir et al., eds. Circumpolar Health 93. Proceedings of the 9th International Congress on Circumpolar Health, Reykjavík, Iceland, June 20-25, 1993. Arctic Medical Research. 1994;53(Suppl.2)
Date
1994
Language
English
Publication Type
Article
Digital File Format
Text - PDF
Keywords
Ambient temperature
Clothing
Cold stress
Discomfort
Forestry workers
Health
Performance
Abstract
The aim of the present work was to study, using a questionnaire, at which ambient temperature the forestry workers subjectively experience the disadvantages caused by cold. The disadvantages were classified according to criteria of thermophysiology, physical performance, and health. Three levels were used: discomfort, performance degradation, and health problems. The questionnaire was mailed to 490 forestry workers, 347 (71%) of whom responded. The results show that workers (who had experienced cold as harmful moderately often or more frequently) experienced cold as discomfortable on average at -19.4 ± 7.0 degrees C (mean ± SD). Performance degradation was experienced at -23.3 ± 5.7 degrees C and health problems at -24.7 ± 6.7 degrees C. Similar problems were experienced, on average, at a 1 degree C higher temperature traveling to work and from work, and a 4 degree C higher temperature during pauses.
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Cold-related cardiorespiratory symptoms among subjects with and without hypertension: the National FINRISK Study 2002.

https://arctichealth.org/en/permalink/ahliterature301017
Source
European Journal of Public Health. 2014 Apr;24(2):237-43. doi: 10.1093/eurpub/ckt078. Epub 2013 Jun 22.
Publication Type
Article
Date
2014
Author
Ikäheimo TM
Lehtinen T
Antikainen R
Jokelainen J
Näyhä S
Hassi J
Keinänen-Kiukaanniemi S
Laatikainen T
Jousilahti P
Jaakkola JJ
Source
European Journal of Public Health. 2014 Apr;24(2):237-43. doi: 10.1093/eurpub/ckt078. Epub 2013 Jun 22.
Date
2014
Language
English
Geographic Location
Finland
Publication Type
Article
Keywords
Adult
Aged
Cardiovascular diseases
Complications
Epidemiology
Cold Temperature
Female
Finland
Humans
Hypertension
Male
Middle Aged
Prevalence
Risk factors
Surveys and Questionnaires
Abstract
BACKGROUND: Exposure to cold weather increases blood pressure (BP) and may aggravate the symptoms and influence the prognosis of subjects with a diagnosis of hypertension. We tested the hypothesis that subjects with hypertension alone or in combination with another cardiovascular disease (CVD) experience cold-related cardiorespiratory symptoms more commonly than persons without hypertension. This information is relevant for proper treatment and could serve as an indicator for predicting wintertime morbidity and mortality.
METHODS: A self-administered questionnaire inquiring of cold-related symptoms was obtained from 6591 men and women aged 25-74 yrs of the FINRISK Study 2002 population. BP was measured in association with clinical examinations. Symptom prevalence was compared between subjects with diagnosed hypertensive disease with (n = 395) or without (n = 764) another CVD, untreated diagnosed hypertension (n = 1308), measured high BP (n = 1070) and a reference group (n = 2728) with normal BP.
RESULTS: Hypertension in combination with another CVD was associated with increased cold-related dyspnoea (men: adjusted odds ratio 3.94, 95% confidence interval 2.57-6.02)/women: 4.41, 2.84-6.86), cough (2.64, 1.62-4.32/4.26, 2.60-6.99), wheezing (2.51, 1.42-4.43/;3.73, 2.08-6.69), mucus excretion (1.90, 1.24-2.91/2.53, 1.54-4.16), chest pain (22.5, 9.81-51.7/17.7, 8.37-37.5) and arrhythmias (43.4, 8.91-211/8.99, 3.99-20.2), compared with the reference group. Both diagnosed treated hypertension and untreated hypertension and measured high BP resulted in increased cardiorespiratory symptoms during the cold season.
CONCLUSION: Hypertension alone and together with another CVD is strongly associated with cold-related cardiorespiratory symptoms. As these symptoms may predict adverse health events, hypertensive patients need customized care and advice on how to cope with cold weather.
PubMed ID
23794677 View in PubMed
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Diabetes and impaired glucose metabolism is associated with more cold-related cardiorespiratory symptoms.

https://arctichealth.org/en/permalink/ahliterature302314
Source
Diabetes Research and Clinical Practice. 2017 Jul;129:116-125. doi: 10.1016/j.diabres.2017.04.022. Epub 2017 May 4.
Publication Type
Article
Date
2017
Author
Ikäheimo TM
Jokelainen J
Hassi J
Hiltunen L
Keinänen-Kiukaanniemi S
Laatikainen T
Jousilahti P
Peltonen M
Moilanen L
Saltevo J
Näyhä S
Source
Diabetes Research and Clinical Practice. 2017 Jul;129:116-125. doi: 10.1016/j.diabres.2017.04.022. Epub 2017 May 4.
Date
2017
Language
English
Geographic Location
Finland
Publication Type
Article
Keywords
Aged
Blood glucose
Cardiovascular diseases
Epidemiology
Cold Temperature
Metabolism
Adverse effects
Diabetes Mellitus, Type 2
Complications
Female
Glucose Intolerance
Glucose Tolerance Test
Humans
Male
Middle Aged
Risk factors
Abstract
AIMS: Diabetes and impaired glucose metabolism cause metabolic, neural and circulatory disturbances that may predispose to adverse cooling and related symptoms during the cold season. This study assessed the prevalence of cold-related cardiorespiratory symptoms in the general population according to glycaemic status.
METHODS: The study population consisted of 2436 men and 2708 women aged 45-74years who participated in the National FINRISK cold sub-studies in 2002 and 2007. A questionnaire assessed cold-related symptoms (respiratory, cardiac, peripheral circulation). Glycaemic status was determined based on fasting blood glucose, oral glucose tolerance tests or reported diagnosis of diabetes and categorized into normal glucose metabolism, impaired fasting blood glucose, impaired glucose tolerance, screening-detected type 2 diabetes and type 2 diabetes.
RESULTS: Type 2 diabetes was associated with increased odds for cold-related dyspnoea [Adjusted OR 1.72 (95% CI, 1.28-2.30)], chest pain [2.10 (1.32-3.34)] and respiratory symptoms [1.85 (1.44-2.38)] compared with normal glucose metabolism. Screened type 2 diabetes showed increased OR for cold-related dyspnoea [1.36 (1.04-1.77)], cough [1.41 (1.06-1.87)] and cardiac symptoms [1.51 (1.04-2.20)]. Worsening of glycaemic status was associated with increased odds for cold-related dyspnoea (from 1.16 in impaired fasting glucose to 1.72 in type 2 diabetes, P=0.000), cough (1.02-1.27, P=0.032), chest pain (1.28-2.10, P=0.006), arrhythmias (0.87-1.74, P=0.020), cardiac (1.11-1.99, P=0.000), respiratory (1.14-1.84, P=0.000) and all symptoms (1.05-1.66, P=0.003).
CONCLUSIONS: Subjects with diabetes and pre-diabetes experience more cold-related cardiorespiratory symptoms and need instructions for proper protection from cold weather to reduce adverse health effects.
PubMed ID
28521195 View in PubMed
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Early Respiratory Infections and Dental Caries in the First 27 Years of Life: A Population-Based Cohort Study.

https://arctichealth.org/en/permalink/ahliterature302315
Source
PLoS One. 2016 Dec 9;11(12):e0168141. doi: 10.1371/journal.pone.0168141. eCollection 2016.
Publication Type
Article
Date
2016
Author
Rantala AK
Mehtonen IT
Jaakkola MS
Näyhä S
Hugg TT
Jaakkola JJ
Source
PLoS One. 2016 Dec 9;11(12):e0168141. doi: 10.1371/journal.pone.0168141. eCollection 2016.
Date
2016
Language
English
Geographic Location
Finland
Publication Type
Article
Keywords
Child
Child, Preschool
Cohort Studies
Dental caries
Complications
Humans
Infant
Infant, Newborn
Respiratory tract infections
Abstract
Early-life respiratory tract infections (RTIs) and dental caries are among the most common infectious diseases worldwide. The relations between early RTIs and development of caries in permanent teeth have not been studied earlier. We assessed childhood RTIs as potential predictors of caries in young adulthood in a 20-year prospective population-based cohort study (The Espoo Cohort Study). Information on lower respiratory tract infections (LRTIs) that had required hospitalization was retrieved from the National Hospital Discharge Registry (n = 1623). Additional information on LRTIs and upper RTIs (URTIs) was assessed based on the questionnaire reports that covered the preceding 12 months. Caries was measured as the number of teeth with fillings (i.e. filled teeth, FT) reported in the 20-year follow-up questionnaire. The absolute and relative excess numbers of FT were estimated applying negative binomial regression. The mean number of FT in young adulthood was 1.4 greater among subjects who had experienced LRTIs requiring hospitalization before the age of 2 years (SD 4.8) compared to those without any such infections (SD 3.4), and the adjusted relative excess number of FT was 1.5 (95% CI 1.0-2.2). LRTIs up to 7 years were associated with an absolute increase of 0.9 in the mean FT number, the adjusted relative excess being 1.3 (1.0-1.8). Also the questionnaire-based LRTIs (adjusted relative excess 1.3; 95% CI 0.9-1.8) and URTIs (adjusted relative excess 1.4, 1.0-1.8) before the age of 2 years predicted higher occurrence of FT. Findings suggest that early RTIs have a role in the development of dental caries in permanent teeth.
PubMed ID
27936203 View in PubMed
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Environmental temperature and mortality

https://arctichealth.org/en/permalink/ahliterature6598
Source
Int J Circumpolar Health. 2005 Dec;64(5):451-8
Publication Type
Article
Date
Dec-2005
Author
Näyhä, S
Author Affiliation
Department of Public Health Science and General Practice, University of Oulu, Finland. simo.nayha@oulu.fi
Source
Int J Circumpolar Health. 2005 Dec;64(5):451-8
Date
Dec-2005
Language
English
Geographic Location
Finland
Publication Type
Article
Keywords
Acclimatization
Age Factors
Air Pollution
Adverse effects
Arctic Regions
Physiology
Body Temperature Regulation
Cardiovascular diseases
Mortality
Cold Temperature
Environment
Female
Finland
Epidemiology
Hot Temperature
Humans
Male
Respiratory Tract Diseases
Seasons
Sex Factors
Abstract
In Finland, mortality increases steeply in autumn, reaches a peak during the Christhmas holidays and declines slowly towards a trough in August. The relative excess in daily mortality (peak vs. trough) is 30% for coronary heart disease, 40% for cerebral vascular accidents and 90% for diseases of the respiratory organs. There is a secondary peak in Midsummer, especially in coronary deaths of working aged men. Mortality is lowest at mean daily temperature of +14 degrees C, and it increases slowly with falling temperature and steeply with increasing temperature. An estimated 2000-3000 extra deaths occur in Finland during the cold season, most of which are people aged 65 years and over but 20% at working age. The number of people dying from high temperatures (over +14 degrees C) in this country in a normal year is 100-200. Heat deaths are mostly certified as being due to cardiovascular or respiratory conditions. Exposure to cold air causes a rise in blood pressure and haemoconcentration which lead to increased tendency to vascular thromboses. In hot weather, haemoconcentration due to sweating and perspiration increases blood viscosity and the risk of thrombosis. Both cold and heat are significant public health hazards which should be taken into account in health care and education of health professionals.
PubMed ID
16440607 View in PubMed
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A health examination trial among males in northern Finland.

https://arctichealth.org/en/permalink/ahliterature76770
Source
Pages 442-444 in H. Linderholm et al., eds. Circumpolar Health 87. Proceedings of the Seventh International Congress on Circumpolar Health, Umeå, Sweden, 1987. Arctic Medical Research. 1988;47 Supp 1.
Publication Type
Article
Date
1988
  1 document  
Author
Näyhä, S.
Nayha, S
Laakso, M.
Haasi, J.
Kolivuori, T.
Author Affiliation
Department of Public Health Science, University of Oulu
Regional Institute of Occupational Health, Oulu, Finland
Source
Pages 442-444 in H. Linderholm et al., eds. Circumpolar Health 87. Proceedings of the Seventh International Congress on Circumpolar Health, Umeå, Sweden, 1987. Arctic Medical Research. 1988;47 Supp 1.
Date
1988
Language
English
Geographic Location
Finland
Publication Type
Article
Digital File Format
Text - PDF
Physical Holding
Alaska Medical Library
Keywords
Finland
General health status
Lapps
Reindeer herding districts
Documents
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Heat related mortality in warm and cold regions of Europe: observational study.

https://arctichealth.org/en/permalink/ahliterature95978
Source
BMJ. 2000 Sep 16;321(7262):670-3
Publication Type
Article
Date
Sep-16-2000
Author
Keatinge W R
Donaldson G C
Cordioli E.
Martinelli M.
Kunst A E
Mackenbach J P
Nayha S.
Vuori I.
Author Affiliation
Medical Sciences Building, Queen Mary and Westfield College, London E1 4NS, UK. w.r.keatinge@qmw.ac.uk
Source
BMJ. 2000 Sep 16;321(7262):670-3
Date
Sep-16-2000
Language
English
Publication Type
Article
Keywords
Age Factors
Aged
Climate
England - epidemiology
Epidemiologic Methods
Finland - epidemiology
Germany - epidemiology
Greece - epidemiology
Heat Stroke - mortality
Humans
Italy - epidemiology
Netherlands - epidemiology
Abstract
OBJECTIVES: To assess heat related mortalities in relation to climate within Europe. DESIGN: Observational population study. Setting: North Finland, south Finland, Baden-Württemberg, Netherlands, London, north Italy, and Athens. SUBJECTS: People aged 65-74. Main outcome measures: Mortalities at temperatures above, below, and within each region's temperature band of minimum mortality. RESULTS: Mortality was lowest at 14.3-17.3 degrees C in north Finland but at 22.7-25.7 degrees C in Athens. Overall the 3 degrees C minimum mortality temperature bands were significantly higher in regions with higher than lower mean summer temperatures (P=0.027). This was not due to regional differences in wind speeds, humidity, or rain. As a result, regions with hot summers did not have significantly higher annual heat related mortality per million population than cold regions at temperatures above these bands. Mean annual heat related mortalities were 304 (95% confidence interval 126 to 482) in North Finland, 445 (59 to 831) in Athens, and 40 (13 to 68) in London. Cold related mortalities were 2457 (1130 to 3786), 2533 (965 to 4101), and 3129 (2319 to 3939) respectively. CONCLUSIONS: Populations in Europe have adjusted successfully to mean summer temperatures ranging from 13.5 degrees C to 24.1 degrees C, and can be expected to adjust to global warming predicted for the next half century with little sustained increase in heat related mortality. Active measures to accelerate adjustment to hot weather could minimise temporary rises in heat related mortality, and measures to maintain protection against cold in winter could permit substantial reductions in overall mortality as temperatures rise.
Notes
Comment In: BMJ. 2000 Sep 16;321(7262):650-110987751
PubMed ID
10987770 View in PubMed
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17 records – page 1 of 2.