Comparing Twitter data to routine data sources in public health surveillance for the 2015 Pan/Parapan American Games: an ecological study.

OBJECTIVES: This study examined Twitter for public health surveillance during a mass gathering in Canada with two objectives: to explore the feasibility of acquiring, categorizing and using geolocated Twitter data and to compare Twitter data against other data sources used for Pan Parapan American Games (P/PAG) surveillance. METHODS: Syndrome definitions were created using keyword categorization to extract posts from Twitter. Categories were developed iteratively for four relevant syndromes: respiratory, gastrointestinal, heat-related illness, and influenza-like illness (ILI). All data sources corresponded to the location of Toronto, Canada. Twitter data were acquired from a publicly available stream representing a 1% random sample of tweets from June 26 to September 10, 2015. Cross-correlation analyses of time series data were conducted between Twitter and comparator surveillance data sources: emergency department visits, telephone helpline calls, laboratory testing positivity rate, reportable disease data, and temperature. RESULTS: The frequency of daily tweets that were classified into syndromes was low, with the highest mean number of daily tweets being for ILI and respiratory syndromes (22.0 and 21.6, respectively) and the lowest, for the heat syndrome (4.1). Cross-correlation analyses of Twitter data demonstrated significant correlations for heat syndrome with two data sources: telephone helpline calls (r = 0.4) and temperature data (r = 0.5). CONCLUSION: Using simple syndromes based on keyword classification of geolocated tweets, we found a correlation between tweets and two routine data sources for heat alerts, the only public health event detected during P/PAG. Further research is needed to understand the role for Twitter in surveillance.

Integration of community health teaching in the undergraduate medicine curriculum at the University of Toronto.

BACKGROUND: In 1999, Determinants of Community Health was introduced at the Faculty of Medicine, University of Toronto. The course spanned all 4 years of the undergraduate curriculum and focused on addressing individual patient and community needs, prevention and population health, and diverse learning contexts. PURPOSE: To demonstrate the value of an integrated, longitudinal approach to the efficiency of delivering a public health curriculum. DESIGN: Time-series comparing the curricular change over two periods of time. SETTING/PARTICIPANTS: Undergraduate medical students from 1993 to 2009. INTERVENTION: Using a spiral curriculum, the educational materials are integrated across all 4 years, based on the concept of medical decision making in a community context. MAIN OUTCOME MEASURES: This study compares measures of student satisfaction and national rankings of the University of Toronto with the other 16 Canadian medical schools for the "Population Health, Ethical, Legal, and Organizational aspects of the practice of medicine" component of the Medical Council of Canada Qualifying Examination Part 1. RESULTS: The University of Toronto has been ranked either first or second place nationally, in comparison to lower rankings in previous years (p<0.02 on the Kruskal-Wallis test). Student ratings indicated the course was comparable to others in the curriculum. CONCLUSIONS: For the same amount of curricular time, an integrated spiral curriculum for teaching public health appears to be more effective than traditional approaches.

A primer on population health: a new resource for students and clinicians.

This is one of six short papers that describe additional innovations that support the integration of public health into medical education. These were featured in the "Patients and Populations: Public Health in Medical Education" conference and describe innovative endeavors or curricular components not previously published. This paper describes the Association of Faculties of Medicine of Canada's Primer in Population Health and its collaborative development with contributions from all Canadian medical schools, in particular from the medical faculties of the University of Ottawa and the Université de Sherbrooke. Although evaluation data will not be available until the primer has been in use for at least 1 year, sharing a description of it is of potential value to medical educators.

Increasing tuition fees in a country with two different models of medical education.

CONTEXT Since the early 1990s, medical school tuition fees have increased substantially in all regions of Canada except Quebec. This provides a natural opportunity to examine the effect of tuition fee increases on medical student demographics, indebtedness and financial stress. METHODS We conducted a national survey of medical students in 2007. We compared results for Quebec students with results for students studying in other parts of the country. We also compared results for 2007 medical students with results for medical students who had completed a similar survey in 2001 and with data for the general population. For the 2007 cohort, we also identified predictors of anticipated debt at the time of medical school graduation. RESULTS A total of 7795 students responded to either the 2001 (n = 3871) or 2007 (n = 3924) survey. Median anticipated debt increased from $40 000 in 2001 to $71 000 in 2007 (Canadian dollars). Medical students in Quebec were more likely to have grown up in a lower-income neighbourhood (odds ratio [OR] = 1.22, 95% confidence interval [CI] 1.03-1.44), were less likely to report significant financial stress (OR = 0.43, 95% CI 0.37-0.50) and reported a lower median anticipated debt than medical students in the rest of Canada ($30 000 versus $90 000; p < 0.001). Across Canada, factors associated with increased debt at the time of graduation were higher tuition fees, lower parental income, non-Chinese ethnicity, higher debt at entry to medical school, smaller non-repayable financial grants, longer pre-medical education and higher non-tuition expenses. CONCLUSIONS Quebec medical students differ from their counterparts in the rest of Canada in several notable ways. In particular, medical student debt has increased more and is greater in the rest of Canada than in Quebec. Our findings have implications for doctor human resources planning in Canada.

A comparison of Canadian medical students from rural and non-rural backgrounds.

CONTEXT: Very little is known about medical students from rural areas currently enrolled in Canadian medical schools. PURPOSE: We aimed to compare rural and non-rural students in terms of demographics, socioeconomic status, financial status and career choices. METHODS: As part of a larger Internet survey of all students at Canadian medical schools outside Quebec, conducted in January and February 2001, we conducted post-hoc analyses to compare students from rural and non-rural areas. Canada Post's classification system was used to determine rural status. To compare differences between rural and non-rural students, we used logistical regression models for categorical variables and factorial analysis of variance for continuous variables. RESULTS: We received responses from 2994 (68.5%) of 4368 medical students. Eleven percent of Canadian medical students come from rural backgrounds. Rural students tend to be older and originate from families of lower socioeconomic status. Students from rural areas report higher levels of debt, increased rates of paid part-time and summer employment, and greater stress from their finances. Nevertheless, rural students are not more likely to state that financial considerations will affect their choice of specialty or practice location. CONCLUSIONS: Canadian medical students who come from rural backgrounds are different from their non-rural counterparts. Students from rural areas face numerous financial barriers in obtaining a medical education and report greater levels of financial stress. Medical schools should examine and address barriers to admission of rural students and they should consider directing more financial resources toward this financially vulnerable group.

Prevalence of smoking associated with pregnancy in three Southern Ontario Health Units.

OBJECTIVES: The objectives of this study were to determine the prevalence of pregnancy-associated smoking among women residing in three Southern Ontario Health Units and to examine potential risk factors for smoking during pregnancy, using an existing data collection mechanism. METHODS: During May 2001, questions about pregnancy-associated smoking were asked during the telephone follow-up of postpartum women living in the three health units in Southern Ontario; this follow-up is routinely conducted by public health nurses. Sociodemographic data were also obtained. Data from 1,134 women were analyzed concerning smoking before and after the occurrence of the pregnancy was known, during each trimester, and immediately postpartum. RESULTS: The rates of smoking before and after the pregnancy was known, in the first, second, and third trimesters, and immediately postpartum were 17.8%, 10.4%, 9.6%, 8.7%, 8.1%, and 7.9%, respectively. For all six estimates of smoking, Canadian-born women had rates 2.5 to 4 times higher than those of women born outside Canada. Age less than 25 years and lower educational attainment were also independent risk factors for smoking during pregnancy. CONCLUSIONS: The Ontario Tobacco Strategy goal of eliminating smoking in pregnancy has not yet been realized. Ongoing smoking cessation programs among pregnant women are needed as part of a comprehensive strategy to reduce the overall prevalence of smoking. In planning such programs, particular attention should be paid to the needs of women who are Canadian-born, have lower educational attainment, and are under the age of 25.

Sex differences in first-year students at Canadian medical schools.

OBJECTIVES: To compare male and female medical students by age, level of education before admission to medical school, race/ethnicity, parental education level, socioeconomic status, and attitudes toward public health care. METHODS: In 2001, we conducted an Internet-based survey of all students enrolled in the 16 medical schools across Canada. Based on the high response rate, first-year medical students at Canadian medical schools outside of Quebec were included in this analysis. The interactions between sex and age, years of premedical education, race/ethnicity, parental occupation, education and household income, impact of finances on choice of medical school, future specialty and practice location, attitudes toward private funding in the Canadian health care system were examined using descriptive statistics and chi2 tests. RESULTS: There were no significant differences between male and female medical students in age, level of education before admission, and race/ethnicity. Female students' fathers (p=.046) and mothers (p=.061) were more likely to hold positions of higher occupational status than were those of male students. There was no significant difference between the parental household incomes of male and female students. Male students were more likely than female students to state that financial considerations would affect their choice of specialty (p=.002) and practice location (p=.002). Male students were more likely to express a positive attitude toward private funding in the health care system, both with respect to increasing the amount of private funding (p=.007) and the addition of private paying patients (p=.002). CONCLUSION: Although women have almost reached equity with men in undergraduate medical education, female students are more likely than male students to have highly educated parents, suggesting that some barriers to access may still exist. The differences in attitudes of female and male medical students to finances and the public health care system become increasingly important as more women practice medicine. These sex differences need to be investigated further, as they could have implications for health policy.

Effects of rising tuition fees on medical school class composition and financial outlook.

BACKGROUND: Since 1997, tuition has more than doubled at Ontario medical schools but has remained relatively stable in other Canadian provinces. We sought to determine whether the increasing tuition fees in Ontario affected the demographic characteristics and financial outlook of medical students in that province as compared with those of medical students in the rest of Canada. METHODS: As part of a larger Internet survey of all students at Canadian medical schools outside Quebec, conducted in January and February 2001, we compared the respondents from Ontario schools with those from the other schools (control group). Respondents were asked about their age, sex, self-reported family income (as a direct indicator of socioeconomic status), the first 3 digits of their postal code at graduation from high school (as an indirect indicator of socioeconomic status), and importance of financial considerations in choosing a specialty and location of practice. We used logistic regression models to see if temporal changes (1997 v. 2000) among Ontario medical students differed from those among medical students elsewhere in Canada apart from Quebec. RESULTS: Responses were obtained from 2994 (68.5%) of 4368 medical students. Across the medical schools, there was an increase in self-reported family income between 1997 and 2000 (p = 0.03). In Ontario, the proportion of respondents with a family income of less than $40,000 declined from 22.6% to 15.0%. However, compared with the control respondents, the overall rise in family income among Ontario students was not statistically significant. First-year Ontario students reported higher levels of expected debt at graduation than did graduating students (median $80,000 v. $57,000) (p < 0.001), and the proportion of students expecting to graduate with debt of at least $100,000 more than doubled. Neither of these differences was observed in the control group. First-year Ontario students were also more likely than fourth-year Ontario students to report that their financial situation was "very" or "extremely" stressful and to cite financial considerations as having a major influence on specialty choice or practice location. These differences were not observed in the control group. INTERPRETATION: At Canadian medical schools, there are fewer students from low-income families in general. However, Ontario medical students report a large increase in expected debt on graduation, an increased consideration of finances in deciding what or where to practise, and increasing financial stress, factors that are not observed among students in other provinces.

Characteristics of first-year students in Canadian medical schools.

BACKGROUND: The demographic and socioeconomic profile of medical school classes has implications for where people choose to practise and whether they choose to treat certain disadvantaged groups. We aimed to describe the demographic and socioeconomic characteristics of first-year Canadian medical students and compare them with those of the Canadian population to determine whether there are groups that are over- or underrepresented. Furthermore, we wished to test the hypothesis that medical students often come from privileged socioeconomic backgrounds. METHODS: As part of a larger Internet survey of all students at Canadian medical schools outside Quebec, conducted in January and February 2001, first-year students were asked to give their age, sex, self-described ethnic background using Statistics Canada census descriptions and educational background. Postal code at the time of high school graduation served as a proxy for socioeconomic status. Respondents were also asked for estimates of parental income and education. Responses were compared when possible with Canadian age-group-matched data from the 1996 census. RESULTS: Responses were obtained from 981 (80.2%) of 1223 first-year medical students. There were similar numbers of male and female students (51.1% female), with 65% aged 20 to 24 years. Although there were more people from visible minorities in medical school than in the Canadian population (32.4% v. 20.0%) (p < 0.001), certain minority groups (black and Aboriginal) were underrepresented, and others (Chinese, South Asian) were overrepresented. Medical students were less likely than the Canadian population to come from rural areas (10.8% v. 22.4%) (p< 0.001) and were more likely to have higher socioeconomic status, as measured by parents' education (39.0% of fathers and 19.4% of mothers had a master's or doctoral degree, as compared with 6.6% and 3.0% respectively of the Canadian population aged 45 to 64), parents' occupation (69.3% of fathers and 48.7% of mothers were professionals or high-level managers, as compared with 12.0% of Canadians) and household income (15.4% of parents had annual household incomes less than $40,000, as compared with 39.7% of Canadian households; 17.0% of parents had household incomes greater than $160,000, as compared with 2.7% of Canadian households with an income greater than $150,000). Almost half (43.5%) of the medical students came from neighbourhoods with median family incomes in the top quintile (p < 0.001). A total of 57.7% of the respondents had completed 4 years or less of postsecondary studies before medical school, and 29.3% had completed 6 or more years. The parents of the medical students tended to have occupations with higher social standing than did working adult Canadians; a total of 15.6% of the respondents had a physician parent. INTERPRETATION: Canadian medical students differ significantly from the general population, particularly with regard to ethnic background and socioeconomic status.