Using Browser Data to Understand Desires to Spend Time Online.

There is growing recognition that many people feel the need to regulate their use of the internet and other digital technologies to support their wellbeing. In this study, we used Mozilla Firefox browser telemetry to investigate the role played by various usage factors in desires to regulate time spent online. In particular, we investigated how six metrics pertaining to time spent on the internet, and the diversity and intensity of use, predict participants' (n = 8,094) desires to spend more or less time online. Across all six metrics, we did not find evidence for a relationship between browser usage metrics and participants wanting to spend more or less time online. This finding was robust across various analytical pathways. The study highlights a number of considerations and concerns that need to be addressed in future industry-academia collaborations that draw on trace data or usage telemetry.

A profile of farmers and other employed Canadians with chronic back pain: a population-based analysis of the 2009-2010 Canadian community health surveys.

PURPOSE: Chronic back disorders (CBDs) are a serious public health issue, both in the general population and among farmers. However, it is not clear whether all individuals with CBD should be treated the same, or if some subpopulations have special needs. This study's purpose was to determine the demographic, socioeconomic, co-morbidity, and other health characteristics of Canadian farmers and nonfarmers with self-reported CBD. METHODS: We performed a secondary analysis of the 2009-2010 Canadian Community Health Survey to develop a profile of adults with CBD comparing farmers (N = 350) to nonfarmer employed persons (N = 11,251). In addition to descriptive analysis, multiple logistic regression was used to control for possible confounding. FINDINGS: Our results indicate that farmers with CBD are significantly more likely to be older, less educated, and more often male and living rurally than nonfarmers with CBD. We found no difference between rates and type of co-morbidities between farmers and nonfarmers. However, the sociodemographic differences between farmers and nonfarmers with CBD may impact the design of effective interventions and have implications for health services planning and health care delivery. The information presented is anticipated to help address the identified need for musculoskeletal disorder prevention in agriculture.

Demographic and health characteristics of rural- and urban-dwelling canadians with chronic back disorders: a population-based comparison.

STUDY DESIGN: This is a cross-sectional design based on analysis of a national survey. OBJECTIVE: To compare rural- and urban-dwelling adults with self-reported chronic back disorders (CBDs) with respect to their demographic, socioeconomic, comorbidity, and other health status indicators. SUMMARY OF BACKGROUND DATA: People living in more rural and geographically remote areas have a greater risk of reporting CBD. Very little is known about whether the characteristics among people with CBD are different between rural and urban dwellers. METHODS: We performed a secondary analysis of the 2009 and 2010 Canadian Community Health Surveys to develop a profile of adults with CBD, comparing populations defined by relative rurality of residence. In addition to descriptive analysis using proportions and bivariate logistic regression, multiple logistic regression was used to control for possible confounding and to better understand the differences between rural- and urban-dwelling Canadians with CBD. RESULTS: With few exceptions, the descriptive bivariate analysis showed significant differences in demographic, socioeconomic, and health status indicators between rural and urban dwellers with CBD. We found no significant differences with respect to self-reported physical and sedentary activity levels, presence of asthma, presence of mood disorders, probability of depression, and self-rated mental health and pain and self-reported pain and function. The multivariate analysis showed that among adults with CBD, rural residence was significantly associated with lower levels of education (odds ratio [OR], 1.39-1.85), Aboriginal ethnicity (OR, 1.72), being married or in a common-law relationship (OR 1.44), being a former smoker (OR, 1.17) or current smoker (OR, 1.31), and being obese (OR, 1.24), regardless of the presence or number of comorbidities. CONCLUSION: There are significant sociodemographic and lifestyle differences between rural and urban Canadians with CBD. These differences may have implications for the design and delivery of more equitable and appropriate health services as well as health promotion and prevention efforts. LEVEL OF EVIDENCE: 2.

A biopsychosocial profile of adult Canadians with and without chronic back disorders: a population-based analysis of the 2009-2010 Canadian Community Health Surveys.

Chronic back disorders (CBD) are a significant public health concern. Profiling Canadians with CBD and the associated biopsychosocial factors at a national population level is important to understand the burden of this condition and how clinicians, health systems, and related policies might address this potentially growing problem. We performed a secondary analysis of the 2009 and 2010 Canadian Community Health Surveys to calculate prevalence and to better understand the differences between people with and without CBD. An estimated 20.2% of the adult Canadian population reports having back problems lasting for 6 months or more. Among people with CBD, there was significantly greater likelihood of living in a more rural or remote location, being Aboriginal, being a former or current smoker, being overweight, having other chronic health conditions, having greater activity limitations, having higher levels of stress, and having lower perceived mental health. People who were single/never married or had an ethnicity other than Caucasian or Aboriginal were less likely to report having CBD. These results contribute to a growing body of research in the area that may assist with strategic prioritization and tailoring of health promotion efforts and health services for people with CBD, particularly among vulnerable groups.

The determinants of chronic bronchitis in Aboriginal children and youth.

BACKGROUND: There is limited knowledge concerning chronic bronchitis (CB) in Canadian Aboriginal peoples. OBJECTIVE: To determine the prevalence (crude and adjusted) of CB and its associated risk factors in Canadian Aboriginal children and youth six to 14 years of age. METHODS: Data from the cross-sectional Aboriginal Peoples Survey were analyzed in the present study. Logistic regression analysis was used to determine risk factors influencing the prevalence of CB among Aboriginal children and youth. The balanced repeated replication method was used to compute standard errors of regression coefficients to account for clustering inherent in the study design. The outcome of interest was based on the question: "Have you been told by a doctor, nurse or other health professional that you have chronic bronchitis?" Demographics, environment and population characteristics (predisposing and enabling resources) were tested for an association with CB. RESULTS: The prevalence of CB was 3.1% for boys and 2.8% for girls. Other significant risk factors of CB were age (OR 1.38 [95% CI 1.24 to 1.52] for 12 to 14 year olds versus six to eight year olds), income (OR 2.28 [95% CI 2.02 to 2.59] for income category <$25,000/year versus ≥$85,000/year), allergies (OR 1.96 [95% CI 1.78 to 2.16] for having allergies versus no allergies), asthma (OR 7.61 [ 95% CI 6.91 to 8.37] for having asthma versus no asthma) and location of residence (rural/urban and geographical location). A significant two-way interaction between sex and body mass index indicated that the relationship between the prevalence of CB and body mass index was modified by sex. DISCUSSION: The prevalence of CB was related to well-known risk factors among adults, including older age and lower annual income.