听到身边很多朋友的故事,云在国内有高血压症状的来到北美后血压回复正常。大家是否有类似经历?有没有人做过研究这里面有什么必然的联系?
中国高血压患病率与加拿大大体相当,中国可能低一些。但由于中国与加拿大的统计方法不同,没法绝对比较。因为中国统计是从18岁及以上,而加拿大是从12岁及以上。
In 2011, 17.6% of Canadians aged 12 and older reported having high blood pressure. This was not a significant change from 2010, though it is an increase from 16.9% in 2009.
From 2001 to 2009, females were more likely than males to report that they had been diagnosed with high blood pressure. However, since 2010 there has been no significant difference between the sexes (Chart 1).
In addition, Canadians who were obese – based on respondent-reported height and weight and Health Canada guidelines on body mass index – were more likely to have high blood pressure than those who were not obese. In 2011, 32.4% of Canadians who were obese had high blood pressure, compared with 15.8% of those who were not obese.
Chart 1
Percentage diagnosed with high blood pressure, by sex, household population aged 12 or older, Canada, 2001 to 2011
Description
Source: Canadian Community Health Survey, 2001, 2003, 2005, 2007, 2008, 2009, 2010, 2011.
High blood pressure rates increased with each successive age group for females. For males, the rates increased with each successive age group up to 65 years of age, after which there is no significant difference for those 65 to 74 years of age compared to those 75 and older.
Between the age of 35 to 44 and 55-64, males had higher rates of hypertension than females, while at 75 and older, females’ high blood pressure rates exceeded that of males (Chart 2).
Chart 2
Percentage diagnosed with high blood pressure, by age group and sex, household population aged 12 or older, Canada, 2011
Description
Source: Canadian Community Health Survey, 2011.
The proportion of residents who reported high blood pressure was below the national average in three provinces and territories: Alberta, 14.8%; Yukon, 13.7%; and the Northwest Territories, 8.9%
2. A higher proportion of residents of Newfoundland and Labrador (22.4%), Prince Edward Island (20.7%), Nova Scotia (22.5%) and New Brunswick (21.7%) reported that they had been diagnosed with hypertension, compared with the national rate. Residents of the other provinces and territories reported rates that were about the same as the national average.
Because of the strong relationship between age and high blood pressure, provinces and territories with disproportionately younger populations are expected to have high blood pressure rates below the national average. The reverse is true for provinces and territories with older populations. To remove the effect of different age distributions, the high blood pressure rates were recalculated as if the age groups in each province and territory were the same as the national level. Based on these age-standardizing calculations, Quebec and British Columbia had hypertension rates that were lower than the national average. Ontario, Newfoundland and Labrador, Nova Scotia and New Brunswick had hypertension rates above the national average.
http://www.statcan.gc.ca/pub/82-625-x/2012001/article/11663-eng.htm