Because some LMAs are quite small, we settled on a version based on 10-year age groups and three qualification categories (grouping degree with post-school).
Furthermore, we added two items to the section 'Background Questions' (gender and hospital levels) and refreshed the qualification categories to adapt to the Chinese context (see online supplementary table).
The following available variables were included: age; sex; ethnicity (white, non-white); household size; household composition; highest educational qualification (eight categories); household income (thirteen categories); employment status; occupational social class (National Statistics Socio-Economic Classification, eight categories (NS-SEC8)); self-assessed general health.
The percentage of missing responses was less than 5% for the following variables: gender, educational qualification, occupational category, local healthcare unit (LHU), vaccination against seasonal influenza in 2007 and 2008, and the declared willingness to get vaccinated in 2010.
We believe that this could be occurring because the nature of the qualifications in this category changed in the 1990s and 2000s.
They are not criminals (although the unjust qualifications of this category in general need another article to unpack), many of them were unaware they were undocumented until they were of age to get a driver's license, or apply for college.
First, to compare the tutoring style and overall effectiveness (as perceived by their students) of Year 1 PBL tutors based on academic qualifications and appointment category; and second, to determine which of six specific tutor styles contributed most to students' perception of effective tutoring.
With no further qualification such a category is considered an abstract category.
Labour market conditions are defined for the LMA lived in 5 years earlier by 10-year age group and three-category qualifications (grouping degree with post-school).
In addition to these measures, a number of new variables were derived from administrative data: an enrollment hours variable was created consisting of 5 categories: 1 30 h, 31 60 h, 61 120 h, 121 400 h, and 400+ h; a three category qualification level variable indicating certificate I/II, certificate III/IV, and Diploma or higher, and a variable containing the age of individual respondents.
