Report on back-to-back houses : a report on relative mortality in through and back-to-back houses in certain towns in the West Riding of Yorkshire / by L.W. Darra Mair ; with an introduction by the Medical Officer of the Board ; presented to both Houses of Parliament by command of His Majesty.

  • Mair, Ludovic William Darra, 1866-1912.
Date:
1910
Catalogue details

Licence: In copyright

Credit: Report on back-to-back houses : a report on relative mortality in through and back-to-back houses in certain towns in the West Riding of Yorkshire / by L.W. Darra Mair ; with an introduction by the Medical Officer of the Board ; presented to both Houses of Parliament by command of His Majesty. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

    19/55 (page 15)
    In the larger areas individually and smaller areas collectively these crude death-rates were as follows : — Table A.—Mean annual crude death-rate from all causes per 1,000. Area in Through houses. Back-to-back houses. L66ds ••• ••• ••• 1603 20-47 Morley ... 11-29 12-07 Batley • •• 11-74 17-71 Bradford ... 16-33 16-08 Huddersfield 15-14 16-51 Halifax 15-77 14-81* Keighley 14-52 16-24 Other areas 10-21 14-72 All areas ... ... 13*89 16-40 (b) Death-rates corrected for differences in age and sex constitution. The foregoing rates of mortality are crude rates and cannot properly be used for purposes of accurate comparison. As mentioned previously, in order to make a mathematically complete correction of these crude rates, information would be required as to the age and sex constitution of the populations con- cerned at the commencement as well as at the end of the decennium for which the death-rates have been calculated. This information it was clearly impossible to obtain, and the question arises how far the information which has been obtained on these points at the end of the decennium is to be relied upon for making the necessary correction. It is clear that the age and sex constitution as ascertained at the end of the decennium may not and probably does not represent the mean age and sex constitution throughout the decennium. Nevertheless it is not a very wide assumption that the variations in respect of age and sex which were found to exist in the different populations at the end of the decennium reflect with sufficient approach to accuracy the variations which existed throughout that period. It is permissible, therefore, for the purpose in view to use the figures set forth in Table II. for calculating, in the usual way, factors of correction for the differences in the age and sex constitu- tion. This has accordingly been done, the standard death-rate being calculated for each sex at the various age groups from the mean annual death-rates from all causes in England and Wales during the decennium 1891-1900, as given in the last decennial supplement of the Registrar-General. The factors thus obtained are set forth in Tables XIII. and XIY. in the Appendix. The death-rate from all causes, when corrected in this way for the differences in age and sex constitution, of the population living • Exclusive of the deaths of two persons who had resided in back to back houses in the area selected, for a few weeks only. If these two deaths are included the crude death-rate becomes 1510. One of these deaths was due to enteric fever, the other to phthisis.