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Per Nafstad

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Lhamo Y Sherpa; Hein Stigum; Virasakdi Chongsuvivatwong; Per Nafstad; Espen Bjertness
Prevalence of metabolic syndrome and common metabolic components in high altitude farmers and herdsmen at 3700 m in Tibet.
Sveinung Berntsen; Espen Bjertness; Hein Stigum; Per Nafstad
Lung function among 9- to 10-year-old Tibetan and Han Chinese schoolchildren living at different altitudes in Tibet.
Siri E Håberg; Steinar Madsen; Per Magnus; Per Nafstad; Hanne Nøkleby; Sven Ove Samuelsen; Anders Skrondal; Preben Aavitsland; Ingebjørg Buajordet; Inger Cappelen; Anders Engeland; Berit Feiring; Kari Furu; Håkon K Gjessing; Nina Gunnes; Lill I S Trogstad; Stein Emil Vollset; Allen J Wilcox; Camilla Stoltenberg
Risk of fetal death after pandemic influenza virus infection or vaccination.

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2013: Lhamo Y Sherpa; Hein Stigum; Virasakdi Chongsuvivatwong; Per Nafstad; Espen Bjertness
Prevalence of metabolic syndrome and common metabolic components in high altitude farmers and herdsmen at 3700 m in Tibet.
High altitude medicine & biology 2013;14(1):37-44.
2013: Sveinung Berntsen; Espen Bjertness; Hein Stigum; Per Nafstad
Lung function among 9- to 10-year-old Tibetan and Han Chinese schoolchildren living at different altitudes in Tibet.
High altitude medicine & biology 2013;14(1):31-6.
2013: Siri E Håberg; Steinar Madsen; Per Magnus; Per Nafstad; Hanne Nøkleby; Sven Ove Samuelsen; Anders Skrondal; Preben Aavitsland; Ingebjørg Buajordet; Inger Cappelen; Anders Engeland; Berit Feiring; Kari Furu; Håkon K Gjessing; Nina Gunnes; Lill I S Trogstad; Stein Emil Vollset; Allen J Wilcox; Camilla Stoltenberg
Risk of fetal death after pandemic influenza virus infection or vaccination.
The New England journal of medicine 2013;368(4):333-40.
2013: Bjørn Heine Strand; Kristian Tambs; Astrid Liv Mina Bergem; Espen Bjertness; Knut Engedal; Marte Handal; Vidar Hjellvik; Gunn Peggy Knudsen; Ellen Melbye Langballe; Per Magnus; Oyvind Naess; Per Nafstad; Helga Refsum; Henrik Schirmer; Randi Selmer
Midlife vascular risk factors and their association with dementia deaths: results from a Norwegian prospective study followed up for 35 years.
Journal of the neurological sciences 2013;324(1-2):124-30.
2012: Øystein Karlstad; Per Nafstad; Svetlana Skurtveit; Aage Tverdal; Kari Furu
Comorbidities in an asthma population 8-29 years old: a study from the Norwegian Prescription Database.
Pharmacoepidemiology and drug safety 2012;21(10):1045-52.
2012: Christian Madsen; Per Nafstad; Wenche Nystad; Pål Rosland; Dominic Anthony Hoff; Oyvind Erik Naess
The short-term effect of 24-h average and peak air pollution on mortality in Oslo, Norway.
European journal of epidemiology 2012;27(9):717-27.
2012: Maria C Magnus; Wenche Nystad; Hein Stigum; Didrik F Vestrheim; Ingeborg S Aaberge; Marianne A Riise Bergsaker; Dominique A Caugant; Siri Eldevik Håberg; Stephanie J London; Per Nafstad
Decline in early childhood respiratory tract infections in the Norwegian mother and child cohort study after introduction of pneumococcal conjugate vaccination.
The Pediatric infectious disease journal 2012;31(9):951-5.
2012: Yangzong Yangzong; Lise Lund Håheim; Ouzhu Luobu; Per Nafstad; Zumin Shi; Espen Bjertness
The prevalence of childhood asthma in China: a systematic review.
BMC public health 2012;12():860.
2011: Kari Furu; Siri E Håberg; Stephanie J London; Per Nafstad; Svetlana Skurtveit; Øystein Karlstad; Wenche Nystad
High validity of mother-reported use of antiasthmatics among children: a comparison with a population-based prescription database.
Journal of clinical epidemiology 2011;64(8):878-84.
2011: Oystein Karlstad; Aage Tverdal; Svetlana Skurtveit; Per Nafstad; Kari Furu
A prospective study of asthma and subsequent use of hypnotics in young adults.
Pharmacoepidemiology and drug safety 2011;20(4):370-7.
2011: Lhamo Y Sherpa; Hein Stigum; Virasakdi Chongsuvivatwong; Ouzhu Luobu; Dag S Thelle; Per Nafstad; Espen Bjertness
Lipid profile and its association with risk factors for coronary heart disease in the highlanders of Lhasa, Tibet.
High altitude medicine & biology 2011;12(1):57-63.
2010: Christian Madsen; Ulrike Gehring; Sam Erik Walker; Bert Brunekreef; Hein Stigum; Oddvar Naess; Per Nafstad
Ambient air pollution exposure, residential mobility and term birth weight in Oslo, Norway.
Environmental research 2010;110(4):363-71.
2010: Oystein Karlstad; Per Nafstad; Aage Tverdal; Svetlana Skurtveit; Kari Furu
Prevalence, incidence and persistence of anti-asthma medication use in 2- to 29-year-olds: a nationwide prescription study.
European journal of clinical pharmacology 2010;66(4):399-406.
2010: Yngvild E Bentdal; Siri E Håberg; Gunnhild Karevold; Hein Stigum; Kari J Kvaerner; Per Nafstad
Birth characteristics and acute otitis media in early life.
International journal of pediatric otorhinolaryngology 2010;74(2):168-72.
2010: S E Håberg; Y E Bentdal; S J London; Kari J Kvaerner; Wenche Nystad; Per Nafstad
Prenatal and postnatal parental smoking and acute otitis media in early childhood.
Acta paediatrica (Oslo, Norway : 1992) 2010;99(1):99-105.
2009: Lise Lund Håheim; Per Nafstad; Ingar Olsen; Per Schwarze; Kjersti S Rønningen
C-reactive protein variations for different chronic somatic disorders.
Scandinavian journal of public health 2009;37(6):640-6.
2009: Siri E Håberg; Hein Stigum; Stephanie J London; Wenche Nystad; Per Nafstad
Maternal obesity in pregnancy and respiratory health in early childhood.
Paediatric and perinatal epidemiology 2009;23(4):352-62.
2009: Bente Oftedal; Wenche Nystad; Bert Brunekreef; Per Nafstad
Long-term traffic-related exposures and asthma onset in schoolchildren in oslo, norway.
Environmental health perspectives 2009;117(5):839-44.
2009: Gunnhild Karevold; Yngvild E Bentdal; Per Nafstad; Kari J Kvaerner
Surgery for otitis media and infectious susceptibility in 10-year old school children.
International journal of pediatric otorhinolaryngology 2009;73(4):603-6.
2009: S E Håberg; S J London; Hein Stigum; Per Nafstad; Wenche Nystad
Folic acid supplements in pregnancy and early childhood respiratory health.
Archives of disease in childhood 2009;94(3):180-4.
2008: Sveinung Berntsen; Torbjørn Wisløff; Per Nafstad; Wenche Nystad
Lung function increases with increasing level of physical activity in school children.
Pediatric exercise science 2008;20(4):402-10.
2008: Christian Madsen; Kevin L Durand; Per Nafstad; Per E Schwarze; Kjersti S Rønningen; Lise L Håheim
Associations between environmental exposures and serum concentrations of Clara cell protein among elderly men in Oslo, Norway.
Environmental research 2008;108(3):354-60.
2008: Lise Lund Håheim; Ingar Olsen; Per Nafstad; Per Schwarze; Kjersti S Rønningen
Antibody levels to single bacteria or in combination evaluated against myocardial infarction.
Journal of clinical periodontology 2008;35(6):473-8.
2008: Wenche Nystad; Siri E Håberg; Stephanie J London; Per Nafstad; Per Magnus
Baby swimming and respiratory health.
Acta paediatrica (Oslo, Norway : 1992) 2008;97(5):657-62.
2008: Fredrik Niclas Piro; Christian Madsen; Oyvind Naess; Per Nafstad; Bjørgulf Claussen
A comparison of self reported air pollution problems and GIS-modeled levels of air pollution in people with and without chronic diseases.
Environmental health : a global access science source 2008;7():9.
2008: Else Lien; Per Nafstad; Elin O Rosvold
Non-western immigrants' satisfaction with the general practitioners' services in Oslo, Norway.
International journal for equity in health 2008;7():7.
2008: Bente Oftedal; Bert Brunekreef; Wenche Nystad; Christian Madsen; Sam-Erik Walker; Per Nafstad
Residential outdoor air pollution and lung function in schoolchildren.
Epidemiology (Cambridge, Mass.) 2008;19(1):129-37.
2008: Siri E Håberg; Per Nafstad; Wenche Nystad; Per Magnus
Genetics and gene-environment interactions in atopic diseases. The Norwegian Mother and Child Cohort Study.
Human heredity 2008;65(4):195-8.
2007: Oyvind Naess; Fredrik N Piro; Per Nafstad; George Davey Smith; Alastair H Leyland
Air pollution, social deprivation, and mortality: a multilevel cohort study.
Epidemiology (Cambridge, Mass.) 2007;18(6):686-94.
2007: Bente Oftedal; B Brunekreef; Wenche Nystad; Per Nafstad
Residential outdoor air pollution and allergen sensitization in schoolchildren in Oslo, Norway.
Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology 2007;37(11):1632-40.
2007: Siri E Håberg; Hein Stigum; Wenche Nystad; Per Nafstad
Effects of pre- and postnatal exposure to parental smoking on early childhood respiratory health.
American journal of epidemiology 2007;166(6):679-86.
2007: Yngvild E Bentdal; Gunnhild Karevold; Per Nafstad; Kari J Kvaerner
Early acute otitis media: predictor for AOM and respiratory infections in schoolchildren?
International journal of pediatric otorhinolaryngology 2007;71(8):1251-9.
2007: Kari Furu; Svetlana Skurtveit; Arnulf Langhammer; Per Nafstad
Use of anti-asthmatic medications as a proxy for prevalence of asthma in children and adolescents in Norway: a nationwide prescription database analysis.
European journal of clinical pharmacology 2007;63(7):693-8.
2007: Yngvild E Bentdal; Per Nafstad; Gunnhild Karevold; Kari J Kvaerner
Acute otitis media in schoolchildren: allergic diseases and skin prick test positivity.
Acta oto-laryngologica 2007;127(5):480-5.
2007: Øyvind Naess; Per Nafstad; Geir Aamodt; Bjørgulf Claussen; Pål Rosland
Relation between concentration of air pollution and cause-specific mortality: four-year exposures to nitrogen dioxide and particulate matter pollutants in 470 neighborhoods in Oslo, Norway.
American journal of epidemiology 2007;165(4):435-43.
2007: Christian Madsen; Per Nafstad; Lars Eikvar; Per E Schwarze; Kjersti S Rønningen; Lise Lund Haaheim
Association between tobacco smoke exposure and levels of C-reactive protein in the Oslo II Study.
European journal of epidemiology 2007;22(5):311-7.
2007: Heidi Nygaard Bakken; Per Nafstad; Roald Bolle; Wenche Nystad
Skin sensitization in school children in northern and southern Norway.
The Journal of asthma : official journal of the Association for the Care of Asthma 2007;44(1):23-7.
2007: Gunnhild Karevold; Johanna Haapkylä; Anne Pitkäranta; Per Nafstad; Kari J Kvaerner
Paediatric otitis media surgery in Norway.
Acta oto-laryngologica 2007;127(1):29-33.
2006: Wenche Nystad; Sven Ove Samuelsen; Per Nafstad; Arnulf Langhammer
Association between level of physical activity and lung function among Norwegian men and women: the HUNT study.
The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease 2006;10(12):1399-405.
2006: Per E Schwarze; Johan Ovrevik; Marit Låg; Magne Refsnes; Per Nafstad; Ragna B Hetland; Erik Dybing
Particulate matter properties and health effects: consistency of epidemiological and toxicological studies.
Human & experimental toxicology 2006;25(10):559-79.
2006: Per Nafstad; C Madsen; Espen Bjertness
Childhood asthma under the north face of Mount Everest.
The Journal of asthma : official journal of the Association for the Care of Asthma 2006;43(5):393-8.
2006: Gunnhild Karevold; Ellen Kvestad; Per Nafstad; Kari J Kvaerner
Respiratory infections in schoolchildren: co-morbidity and risk factors.
Archives of disease in childhood 2006;91(5):391-5.
2006: Christian Madsen; Per Nafstad
Associations between environmental exposure and blood pressure among participants in the Oslo Health Study (HUBRO).
European journal of epidemiology 2006;21(7):485-91.
2005: Per Nafstad; Bert Brunekreef; Anders Skrondal; Wenche Nystad
Early respiratory infections, asthma, and allergy: 10-year follow-up of the Oslo Birth Cohort.
Pediatrics 2005;116(2):e255-62.
2005: Per Nafstad; Jouni J K Jaakkola; Anders Skrondal; Per Magnus
Day care center characteristics and children's respiratory health.
Indoor air 2005;15(2):69-75.
2004: Per Nafstad
[Health effects of outdoor air pollution].
Tidsskrift for den Norske lægeforening : tidsskrift for praktisk medicin, ny række 2004;124(22):2896-9.
2004: Wenche Nystad; Haakon E Meyer; Per Nafstad; Aage Tverdal; Anders Engeland
Body mass index in relation to adult asthma among 135,000 Norwegian men and women.
American journal of epidemiology 2004;160(10):969-76.
2004: Per Nafstad; Lise Lund Håheim; Torbjørn Wisløff; Frederick Gram; Bente Oftedal; Ingar Holme; Ingvar Hjermann; Paul Leren
Urban air pollution and mortality in a cohort of Norwegian men.
Environmental health perspectives 2004;112(5):610-5.
2004: Virginia R G Bachrach; Per Nafstad; Wendy H Oddy
Long-term follow-up of asthma.
The New England journal of medicine 2004;350(3):304; author reply 304.
2003: Per Nafstad; Lise Lund Håheim; Bente Oftedal; Frederick Gram; Ingar Holme; Ingvar Hjermann; Paul Leren
Lung cancer and air pollution: a 27 year follow up of 16 209 Norwegian men.
Thorax 2003;58(12):1071-6.
2003: Per Nafstad; Jouni J K Jaakkola
Breast-feeding, passive smoking, and asthma and wheeze in children.
The Journal of allergy and clinical immunology 2003;112(4):807-8; author reply 808-9.
2003: Frederick Gram; Per Nafstad; Lise Lund Håheim
Estimating residential air pollution exposure among citizens in Oslo 1974-1998 using a geographical information system.
Journal of environmental monitoring : JEM 2003;5(4):541-6.
2003: Wenche Nystad; Frode Njå; Per Magnus; Per Nafstad
Baby swimming increases the risk of recurrent respiratory tract infections and otitis media.
Acta paediatrica (Oslo, Norway : 1992) 2003;92(8):905-9.
2003: Merete Eggesbø; Grete Botten; Hein Stigum; Per Nafstad; Per Magnus
Is delivery by cesarean section a risk factor for food allergy?
The Journal of allergy and clinical immunology 2003;112(2):420-6.
2003: Per Nafstad; Wenche Nystad; Per Magnus; Jouni J K Jaakkola
Asthma and allergic rhinitis at 4 years of age in relation to fish consumption in infancy.
The Journal of asthma : official journal of the Association for the Care of Asthma 2003;40(4):343-8.
2003: Per Nafstad; Sven Ove Samuelsen; Lorentz M Irgens; Tor Bjerkedal
Pregnancy complications and the risk of asthma among Norwegians born between 1967 and 1993.
European journal of epidemiology 2003;18(8):755-61.
2003: Bente Oftedal; Per Nafstad; Per Magnus; Sonja Bjørkly; Anders Skrondal
Traffic related air pollution and acute hospital admission for respiratory diseases in Drammen, Norway 1995-2000.
European journal of epidemiology 2003;18(7):671-5.
2002: Wenche Nystad; Sven Ove Samuelsen; Per Nafstad; E Edvardsen; Trine Stensrud; Jouni J K Jaakkola
Feasibility of measuring lung function in preschool children.
Thorax 2002;57(12):1021-7.
2002: Kari J Kvaerner; Per Nafstad; Jouni J K Jaakkola
Otolaryngological surgery and upper respiratory tract infections in children: an epidemiological study.
The Annals of otology, rhinology, and laryngology 2002;111(11):1034-9.
2002: Per Nafstad; Sven Ove Samuelsen; Lorentz M Irgens; Tor Bjerkedal
Birth weight and hearing impairment in norwegians born from 1967 to 1993.
Pediatrics 2002;110(3):e30.
2002: Per Nafstad; Wenche Nystad; Jouni J K Jaakkola
The use of a feather quilt, childhood asthma and allergic rhinitis: a prospective cohort study.
Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology 2002;32(8):1150-4.
2002: Wenche Nystad; Per Nafstad; Jouni J K Jaakkola
The effect of respiratory tract infections on reported asthma symptoms.
Scandinavian journal of public health 2002;30(1):70-5.
2001: Per Nafstad; Per Magnus; Per Ivar Gaarder; Jouni J K Jaakkola
Exposure to pets and atopy-related diseases in the first 4 years of life.
Allergy 2001;56(4):307-12.
2001: Per Nafstad; Anders Skrondal; Espen Bjertness
Mortality and temperature in Oslo, Norway, 1990-1995.
European journal of epidemiology 2001;17(7):621-7.
2001: Wenche Nystad; Per Nafstad; J R Harris
Physical activity affects the prevalence of reported wheeze.
European journal of epidemiology 2001;17(3):209-12.
2000: Per Nafstad; Per Magnus; Jouni J K Jaakkola
Risk of childhood asthma and allergic rhinitis in relation to pregnancy complications.
The Journal of allergy and clinical immunology 2000;106(5):867-73.
2000: Kari J Kvaerner; Per Nafstad; J J Jaakkola
Upper respiratory morbidity in preschool children: a cross-sectional study.
Archives of otolaryngology--head & neck surgery 2000;126(10):1201-6.
2000: Per Nafstad; Per Magnus; Jouni J K Jaakkola
Early respiratory infections and childhood asthma.
Pediatrics 2000;106(3):E38.
2000: JA Hagen; Per Nafstad; Anders Skrondal; S Bjørkly; Per Magnus
Associations between outdoor air pollutants and hospitalization for respiratory diseases.
Epidemiology (Cambridge, Mass.) 2000;11(2):136-40.
1999: L Oie; Per Nafstad; Grete Botten; Per Magnus; J K Jaakkola
Ventilation in homes and bronchial obstruction in young children.
Epidemiology (Cambridge, Mass.) 1999;10(3):294-9.
1999: Per Nafstad; JA Hagen; L Oie; Per Magnus; Jouni J K Jaakkola
Day care centers and respiratory health.
Pediatrics 1999;103(4 Pt 1):753-8.
1999: Jouni J K Jaakkola; L Oie; Per Nafstad; Grete Botten; Sven Ove Samuelsen; Per Magnus
Interior surface materials in the home and the development of bronchial obstruction in young children in Oslo, Norway.
American journal of public health 1999;89(2):188-92.
1998: Per Magnus; Per Nafstad; L Oie; K C L Carlsen; Georg Becher; J Kongerud; Kai-Håkon Carlsen; Sven Ove Samuelsen; Grete Botten; Leiv S Bakketeig
Exposure to nitrogen dioxide and the occurrence of bronchial obstruction in children below 2 years.
International journal of epidemiology 1998;27(6):995-9.
1998: Per Nafstad; L Oie; R Mehl; Per Ivar Gaarder; Karin C Lødrup Carlsen; Grete Botten; Per Magnus; Jouni J K Jaakkola
Residential dampness problems and symptoms and signs of bronchial obstruction in young Norwegian children.
American journal of respiratory and critical care medicine 1998;157(2):410-4.
1998: S Steihaug; Per Nafstad; R Vikse; R M Beier; T Tangen
[Prevention of femoral neck fractures in the Stovner district of Oslo].
Tidsskrift for den Norske lægeforening : tidsskrift for praktisk medicin, ny række 1998;118(1):37-9.
1998: Per Nafstad; Drude Fugelseth; E Qvigstad; K Zahlen; P Magnus; Rolf Lindemann
Nicotine concentration in the hair of nonsmoking mothers and size of offspring.
American journal of public health 1998;88(1):120-4.
1997: Karin C Lødrup Carlsen; Jouni J K Jaakkola; Per Nafstad; Kai-Håkon Carlsen
In utero exposure to cigarette smoking influences lung function at birth.
The European respiratory journal 1997;10(8):1774-9.
1997: Kari J Kvaerner; Per Nafstad; J A Hagen; Iain W S Mair; Jouni J K Jaakkola
Recurrent acute otitis media: the significance of age at onset.
Acta oto-laryngologica 1997;117(4):578-84.
1997: Per Nafstad; Jouni J K Jaakkola; JA Hagen; B S Pedersen; E Qvigstad; Grete Botten; J Kongerud
Weight gain during the first year of life in relation to maternal smoking and breast feeding in Norway.
Journal of epidemiology and community health 1997;51(3):261-5.
1997: Per Nafstad; J Kongerud; Grete Botten; JA Hagen; Jouni J K Jaakkola
The role of passive smoking in the development of bronchial obstruction during the first 2 years of life.
Epidemiology (Cambridge, Mass.) 1997;8(3):293-7.
1997: Kari J Kvaerner; Per Nafstad; J Hagen; Iain W S Mair; Jouni J K Jaakkola
Early acute otitis media: determined by exposure to respiratory pathogens.
Acta oto-laryngologica. Supplementum 1997;529():14-8.
1996: Per Nafstad; Jouni J K Jaakkola; JA Hagen; Grete Botten; Johny Kongerud
Breastfeeding, maternal smoking and lower respiratory tract infections.
The European respiratory journal 1996;9(12):2623-9.
1996: Per Nafstad; Johny Kongerud; Grete Botten; P Urdal; T Silsand; B S Pedersen; Jouni J K Jaakkola
Fetal exposure to tobacco smoke products: a comparison between self-reported maternal smoking and concentrations of cotinine and thiocyanate in cord serum.
Acta obstetricia et gynecologica Scandinavica 1996;75(10):902-7.
1996: Per Nafstad; Grete Botten; J Hagen
Partner's smoking: a major determinant for changes in women's smoking behaviour during and after pregnancy.
Public health 1996;110(6):379-85.
1996: Kari J Kvaerner; Per Nafstad; JA Hagen; Iain W S Mair; Jouni J K Jaakkola
Early acute otitis media and siblings' attendance at nursery.
Archives of disease in childhood 1996;75(4):338-41.
1996: Per Nafstad; JA Hagen; Grete Botten; Jouni J K Jaakkola
Lower respiratory tract infections among Norwegian infants with siblings in day care.
American journal of public health 1996;86(10):1456-9.
1996: I V Knoph; Per Nafstad; A Grindheim; T Tangen
[A local health center for adolescents].
Tidsskrift for den Norske lægeforening : tidsskrift for praktisk medicin, ny række 1996;116(17):2030-1.
1995: Per Nafstad; Per Magnus; Babill Stray-Pedersen
Opposing placental gradients for thiocyanate and cotinine at birth.
Early human development 1995;42(1):73-9.
1995: Per Nafstad; Babill Stray-Pedersen; M Sølvberg; T Tangen
[Menarche and menstruation problems among teenagers in Oslo 1993].
Tidsskrift for den Norske lægeforening : tidsskrift for praktisk medicin, ny række 1995;115(5):604-6.
1995: Per Nafstad; Grete Botten; JA Hagen; Kolbjørn Zahlsen; Odd G Nilsen; T Silsand; Johny Kongerud
Comparison of three methods for estimating environmental tobacco smoke exposure among children aged between 12 and 36 months.
International journal of epidemiology 1995;24(1):88-94.
1994: Per Nafstad; K Henden; J Opsahl; T Tangen
[Has sex education in schools resulted in later sexual debut? Experiences with a local preventive program].
Tidsskrift for den Norske lægeforening : tidsskrift for praktisk medicin, ny række 1994;114(16):1833-5.