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Comparability of LFS data over time

There is a broadly consistent time series for:

Whilst the small change in survey period from December-February for years prior to 2006/07 to January-March from 2006/07 onwards may have potentially introduced a discontinuity to these data series,  investigations suggested that this change in survey design has not affected the top level injury, ill health and working days lost data.

The above surveys had the same design and coverage (with the exception of the small change in survey time period in 2006/07) and used the same methods to adjust for non-response to the screening questions in each survey.

It is only possible to make broad comparisons with the earlier surveys, and even these need to be treated with caution. This is due to the differences in:

To achieve even these broad based comparisons for illness data, a number of adjustments have to be made to the data to ensure comparability.

Updated 2015-10-07