Joanna M. Stewart

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Low serum 25 hydroxyvitamin D3 (vitamin D3) is known to perturb cellular function in many tissues, including the endocrine pancreas, which are involved in obesity and type II diabetes mellitus (TIIDM). Vitamin D3 insufficiency has been linked to obesity, whether obesity is assessed by body mass index (BMI) or waist circumference (waist). Central obesity,(More)
Objectives The aim of this project was to evaluate the perceptions, knowledge and attitudes regarding generic medicines. Methods A cross-sectional study, with self administered questionnaires, was conducted to survey consumers visiting pharmacies in four regions of Auckland (North Shore, Waitakere, Central Auckland and South Auckland). Through stratified(More)
BACKGROUND Generic medicines are commonly used in New Zealand; however, Pharmaceutical Management Agency of New Zealand (PHARMAC) has indicated a need for better information to the public. Studies on consumers' perceptions suggest that pharmacists play an important role in consumers' choice; hence, "quality use of generic medicines" can be promoted with a(More)
We aimed to assess the effect of invasive group A streptococcal (GAS) infection and the potential effects of a multivalent GAS vaccine in New Zealand. During January 2005-December 2006, we conducted prospective population-based laboratory surveillance of Auckland residents admitted to all public hospitals with isolation of GAS from normally sterile sites.(More)
BACKGROUND To investigate the indications for corneal transplantation and the distribution of donor corneal tissue in New Zealand. DESIGN Analysis of the prospective database of the New Zealand National Eye Bank. PARTICIPANTS A total of 2205 corneal transplants were assessed. METHODS New Zealand National Eye Bank records were analysed for the decade(More)
BACKGROUND Acute rheumatic fever (ARF) and its sequela, rheumatic heart disease is the commonest cause of childhood cardiac morbidity globally. The current approach to the prevention of a primary attack of rheumatic fever in children using oral medication for streptococcal pharyngitis is poorly supported. The efficacy of injectable penicillin, in high(More)
seeing any patient with respiratory symptoms. Contacts of proved cases should isolate themselves until the incubation period is over. After contact with patients with respiratory symptoms, careful hand hygiene is necessary, with washing with soap and water. On 27 March the Department of Health finally announced drastic measures, including vigorous contact(More)
New Zealand has been affected by an epidemic of group B meningococcal disease dominated by a strain defined as, B:4:P1.7b,4. Over 5550 cases and 222 deaths have been reported since 1991 in a population of 4 million people. Meningococcal disease cases notified on EpiServ database operated by Institute of Environmental Science and Research Limited through to(More)
BACKGROUND Previous research suggests vaccine injection technique can influence local reactogenicity. OBJECTIVE To identify characteristics of vaccination technique and individual vaccinees associated with frequency and severity of pain on injection and local reactogenicity following immunisation with quadrivalent human papillomavirus vaccine. DESIGN(More)
A nationwide strategy to control a group B meningococcal disease epidemic in New Zealand using an epidemic strain-specific vaccine (MeNZB ) commenced in 2004. In the absence of randomised controlled trials investigating the efficacy of this particular vaccine, a complement of observational methods are planned to evaluate the post-licensure effectiveness of(More)