Publications 2025

Hewitt S, Hofsø D, Qvigstad E, Berg TJ, Chahal-Kummen M, Kristinsson J, Mala T (2025)
Post-bariatric hypoglycaemia
Tidsskr Nor Laegeforen, 145 (6)
DOI 10.4045/tidsskr.24.0396, PubMed 40366035

Publications 2020

Hewitt S, Kristinsson J, Aasheim ET, Blom-Høgestøl IK, Aaseth E, Jahnsen J, Eriksen EF, Mala T (2020)
Relationships Between Vitamin D Status and PTH over 5 Years After Roux-en-Y Gastric Bypass: a Longitudinal Cohort Study
Obes Surg, 30 (9), 3426-3434
DOI 10.1007/s11695-020-04582-5, PubMed 32306297

Kherad O, Peiffer-Smadja N, Karlafti L, Lember M, Aerde NV, Gunnarsson O, Baicus C, Vieira MB, Vaz-Carneiro A, Brucato A, Lazurova I, Leśniak W, Hanslik T, Hewitt S, Papanicolaou E, Boeva O, Dicker D, Ivanovska B, Yldiz P, Lacor P, Cranston M, Weidanz F, Costantino G, Montano N (2020)
The challenge of implementing Less is More medicine: A European perspective
Eur J Intern Med, 76, 1-7
DOI 10.1016/j.ejim.2020.04.014, PubMed 32303454

Publications 2019

Blom-Høgestøl IK, Hewitt S, Chahal-Kummen M, Brunborg C, Gulseth HL, Kristinsson JA, Eriksen EF, Mala T (2019)
Bone metabolism, bone mineral density and low-energy fractures 10 years after Roux-en-Y gastric bypass
Bone, 127, 436-445
DOI 10.1016/j.bone.2019.07.014, PubMed 31323430

Graff-Iversen S, Hewitt S, Forsén L, Grøtvedt L, Ariansen I (2019)
Associations of tobacco smoking with body mass distribution; a population-based study of 65,875 men and women in midlife
BMC Public Health, 19 (1), 1439
DOI 10.1186/s12889-019-7807-9, PubMed 31675936

Publications 2018

Hewitt S, Aasheim ET, Søvik TT, Jahnsen J, Kristinsson J, Eriksen EF, Mala T (2018)
Relationships of serum 25-hydroxyvitamin D, ionized calcium and parathyroid hormone after obesity surgery
Clin Endocrinol (Oxf), 88 (3), 372-379
DOI 10.1111/cen.13531, PubMed 29235126

Publications 2017

Høgestøl IK, Chahal-Kummen M, Eribe I, Brunborg C, Stubhaug A, Hewitt S, Kristinsson J, Mala T (2017)
Chronic Abdominal Pain and Symptoms 5 Years After Gastric Bypass for Morbid Obesity
Obes Surg, 27 (6), 1438-1445
DOI 10.1007/s11695-016-2499-z, PubMed 28028658

Publications 2015

Mala T, Hewitt S, Høgestøl IK, Kjellevold K, Kristinsson JA, Risstad H (2015)
[Dumping syndrome following gastric surgery]
Tidsskr Nor Laegeforen, 135 (2), 137-41
DOI 10.4045/tidsskr.14.0550, PubMed 25625992

Risstad H, Søvik TT, Hewitt S, Kristinsson JA, Fagerland MW, Bernklev T, Mala T (2015)
Changes in Health-Related Quality of Life After Gastric Bypass in Patients With and Without Obesity-Related Disease
Obes Surg, 25 (12), 2408-16
DOI 10.1007/s11695-015-1717-4, PubMed 26003550

Publications 2014

Hewitt S, Humerfelt S, Søvik TT, Aasheim ET, Risstad H, Kristinsson J, Mala T (2014)
Long-term improvements in pulmonary function 5 years after bariatric surgery
Obes Surg, 24 (5), 705-11
DOI 10.1007/s11695-013-1159-9, PubMed 24435516

Publications 2013

Aftab H, Risstad H, Søvik TT, Bernklev T, Hewitt S, Kristinsson JA, Mala T (2013)
Five-year outcome after gastric bypass for morbid obesity in a Norwegian cohort
Surg Obes Relat Dis, 10 (1), 71-8
DOI 10.1016/j.soard.2013.05.003, PubMed 24182445

Hewitt S, Søvik TT, Aasheim ET, Kristinsson J, Jahnsen J, Birketvedt GS, Bøhmer T, Eriksen EF, Mala T (2013)
Secondary hyperparathyroidism, vitamin D sufficiency, and serum calcium 5 years after gastric bypass and duodenal switch
Obes Surg, 23 (3), 384-90
DOI 10.1007/s11695-012-0772-3, PubMed 23015268

Publications 2011

Hewitt S, Weidanz F, Westgeest H, Ruza I, Ciferska H, Pasquet F, Salomäki S, Olsen E (2011)
European School of Internal Medicine (ESIM) in Brighton: experiences and reflections
Eur J Intern Med, 22 (3), 238-40
DOI 10.1016/j.ejim.2011.01.006, PubMed 21570640

Publications 2009

Hewitt S, Graff-Iversen S (2009)
Risk factors for cardiovascular diseases and diabetes in disability pensioners aged 40--42 years: a cross-sectional study in Norway
Scand J Public Health, 37 (3), 280-6
DOI 10.1177/1403494808101177, PubMed 19181824