London's Pulse: Medical Officer of Health reports 1848-1972

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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London

London County Council 1930

[Report of the Medical Officer of Health for London County Council]

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Table: Table "D" shows numbers who have educational levels above, up to, or below their chronological ages—-the latter shown in years of retardation (695 cases).

Table "D" shows numbers who have educational levels above, up to, or below their chronological ages—-the latter shown in years of retardation (695 cases).

Chronological age in years.Testing above chronological age.Testing up to chronological age.One year retarded.2 years retarded.3 years retarded4 years retarded.5 years retarded.6 years retarded.7 years retarded.8 years retarded.9 years retarded.
4—2—___-_—__
5—15———-————
6—132-----—-
7——552————-—
813772i———-—
9—8101199i——-_
10171517954___-
11191017101184___-
12429818121316-
1321071025211413521
14481016171577421
15—920243530341611104
Totals1360101117132104814126146
Per cent.10.514.516.818.814.813.15.53.52.00.5

Table: Table " E " shows numbers whose practical ability as estimated by Porteus Maze test is above, up to, or below their chronological ages—the latter expressed as years of retardation (668 cases).

Table " E " shows numbers whose practical ability as estimated by Porteus Maze test is above, up to, or below their chronological ages—the latter expressed as years of retardation (668 cases).

Chronological age in years.Testing above chronological age.Testing up to chronological age.One year retarded.2 years retarded3 years retarded.4 years retarded.5 years retarded.6 years retarded.7 years retarded.8 years retarded.9 years retarded.
4_1---------
5-----------
631—1-------
71422-------
857641------
936181731-----
102101516122--——-
11257191911411——
121531321913322—
13—1315372018112—1
14——2514201916731
15—271938494218741
Totals17426311114611396491993
Per cent. ...V 8.89.516.621.816.914.47.42.81.40.4

Table: Table " F " compares the percentages of ch1ldren whose mental, educat1onal and Porteus levels are above, and up to, or below their chronological ages. Totals examined—695 mental levels; 695 educational levels; 668 Porteus levels.

Table " F " compares the percentages of ch1ldren whose mental, educat1onal and Porteus levels are above, and up to, or below their chronological ages. Totals examined—695 mental levels; 695 educational levels; 668 Porteus levels.

Up to or above chronological age)1 year retarded.2 years retarded.3 years retarded.4 years retarded.5 years retarded.6 years retarded.7 years retarded.8 years retarded.9 years retarded.
Mental levels26.220.818.417.29.44.01.91.60.350.15
Educational levels10.514.516.818.814.81315.53.5200.5
Porteus levels8.89.516.621.816.914.47.42.81.40.4

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