- © 2008 Canadian Medical Association
Breast size and risk of type 2 diabetes mellitus

Photo by: STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
In this prospective cohort study involving 92 106 of the women who participated in the Nurses' Health Study II in the United States, Ray and colleagues found that larger breast sizes were independently associated with increased risk of developing type 2 diabetes mellitus. In a related commentary, Sorisky describes the normal and abnormal biological activity of adipose tissue and how this might suggest systemic metabolic effects of breast tissue.
Paroxetine for major depression in adults
The risks and benefits of selective serotonin reuptake inhibitors in the treatment of depression are controversial. In this meta-analysis of 40 randomized controlled trials comprising 6391 patients, Barbui and colleagues found that paroxetine did not differ from placebo in terms of early study withdrawal. Although patients taking paroxetine were more likely to show improvement in depression symptoms, they also experienced more side effects and suicidal tendencies.
See page 296
Nonsuicidal self-harm in youth
Nonsuicidal self-harm is self-injury without the conscious intent to take one's life. In this population-based, longitudinal survey of 568 youth aged 14–21 in Victoria, British Columbia, Nixon and colleagues found that 17% of participants reported harming themselves and that only about half had sought help for this behaviour. They advise physicians to assess youth for nonsuicidal self-harm.
See page 306
Diagnosis and treatment of dementia
Chertkow introduces a new series of review articles by highlighting the recommendations of the 2006 Canadian Consensus Conference on the Diagnosis and Treatment of Dementia.
See page 316
Increasing the number of rural physicians
In this commentary, Rourke discusses the urgent need for more rural physicians, and he highlights factors that would help achieve increased recruitment and retention.
See page 322
Practice
Wong and colleagues describe a case of deep vein thrombosis due to cobalamin deficiency in a university student (page 279).
In this issue's Public Health column and related fact sheet, Kutcher and Szumilas discuss youth suicide and strategies for its prevention (pages 282 and 286).

Intermittent forearm cyanosis in a 42-year-old woman.
In this Clinical Vista, Simon and Amann-Vesti describe a case of intermittent forearm cyanosis in a 42-year-old woman that occurred following removal of a central venous catheter (page 287).