VM Study: Participants

About the people who took the survey

Participant Overview

A sample bias is seen in the survey that does not accurately represent the actual international VM population.

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88.5% Female

The survey received many more female respondents

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82.2% Born 1960-1989

Young adults and senior migraineurs under-represented

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87.5% Caucasian

Ethnic minorities have almost no representation in the survey results

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89.5% from 4 Countries

US, UK, Canadians & Australians dominate participation



184 of 209 respondents reported as female. One respondent declined to answer ('Rather not say'), and the remaining respondents answered 'Male'.

This extreme bias towards the experiences of female migraineurs makes it difficult to make anything but the most basic generalisations about the disparity between men and woman in their responses as a group.

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Age groups

For the sake of ensuring anonymity, age designations were grouped by decade of birth. This allows for a very broad overview of the age spread of the respondents. It also allows for a comparison of different responses at different ages. 

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With 87.5% of respondents identifying as Caucasian, it is impossible to make any meaningful comment about patterns between different ethnic groups. 

The classifications offered were chosen for the best international appropriateness. Country-specific designations such as 'African American' or 'Black British', often seen in country-specific surveys, were avoided in order to make the list of options manageable.

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Country of residence

Country of residence data was collected with the hope of identifying differences in the experiences of respondents based on healthcare systems and regional preferred treatments.

Due to the response rate and regional bias, only the US and UK have numbers significant enough for regional comparison. 

Regional biases in the data are a reflection of the usership of the online groups where the survey was promoted.

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Years with condition

The number of years respondents have had the condition correlated heavily with their reported age.

51.7% of respondents born in the 1960s have had the condition for four or more years. This figure drops to 45.4% for those born in the 70s, and further still to 35.2% for those born in the 1980s

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About sample bias

The respondents of the survey do not give a true representation of the true international VM population, but rather provide an insight into a certain part of this population. 

The bias in respondent demographics is largely due to recruitment from online groups matching the female and western bias seen in the survey sample. The survey was also conducted only in English, which excluded much of the world population. 

Because of the skewed demographics of this survey, its results are limited in their ability to draw conclusions about the disparity between the experiences of different genders, age groups, ethnicities or locations

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The demographics of respondents mirrors the usership of the support groups that promoted the survey. Female caucasians are over-represented, but respondents cover a range of age groups

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The information presented here is the result of a survey, and shows aggregated data submitted by VM sufferers. This information does not constitute medical advice, and MalaDIO does not endorse any medications or other treatments. Any changes to your treatment should be taken under medical advice.