Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for London County Council]
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Relationship | Clinical classification | 0-15 | 16-20 | 21-25 | 26-30 | 31-40 | Ovei 40 | No. | Percentage |
---|---|---|---|---|---|---|---|---|---|
Parent | Pulm. tub. class T.B. +, living | £ | 12 | 2C | 4 | 3 | - | 44 | — |
Pulm. tub class T.B. — , living | 2 | : | — | — | - | 6 | — | ||
Pulm. tub. (condition of sputum unknown), living | 1 | l | — | — | 1 | 3 | |||
Non-pulm. tub., living | 1 | 2 | — | — | - | 3 | 1 — | ||
Pulm. tub., dead within last 5 years 3 | 1 | 27 | 32 | 4 | 8 | 3 | 75 | — | |
Total | 7 | 43 | 58 | 8 | 11 | 4 | 131 | 27-5 | |
Husband | Pulm. tub. class T.B. +, living | — | — | 2 | 8 | 7 | 5 | 22 | — |
Pulm. tub. class T.B. —, living | — | — | — | — | — | 1 | 1 | — | |
Pulm. tub. (condition of sputum unknown), living | — | — | — | 1 | — | — | 1 | — | |
Non-pulm. tub., living | — | — | 1 | — | — | — | 1 | — | |
Non-pulm. tub., dead within last 5 years | — | — | — | 1 | 1 | — | 2 | — | |
Pulm. tub., dead within last 5 years | — | — | — | 8 | 6 | 6 | 20 | — | |
Total | — | — | 3 | 18 | 14 | 12 | 47 | 9.9 | |
Child | Pulm. tub. class T.B. +, living | _ | — | 1 | — | 3 | 10 | 14 | — |
Pulm. tub. class T.B —, living | _ | — | — | — | 1 | 5 | 6 | — | |
Pulm. tub. (condition of sputum un- | — | — | — | — | 1 | 1 | 2 | — | |
Non-pulm. tub., living | — | — | 1 | 3 | 3 | 2 | 9 | _ | |
Non-pulm. tub . dead within last 5 years | — | _ | — | — | 2 | — | 2 | — | |
Pulm. tub., dead within last 5 years | — | 1 | 1 | 2 | 2 | 6 | 12 | — | |
Total | — | 1 | 3 | 5 | 12 | 24 | 45 | 9.5 | |
Brother or | Pulm. tub. class T.B. +, living | 2 | 18 | 31 | 21 | 13 | 3 | 88 | — |
sister | Pulm. tub. class T.B. —, living | — | 6 | 6 | 7 | 2 | 2 | 23 | — |
Pulm. tub. (condition of sputum unknown), living | —_ | _ | 9 | 6 | 5 | 4 | 24 | — | |
Non-pulm. tub., living | — | 5 | 6 | 8 | 3 | — | 22 | — | |
Non-pulm. tub., dead within last 5 years | — | — | 3 | — | 1 | — | 4 | — | |
Pulm. tub., dead within last 5 years | 2 | 21 | 24 | 23 | 18 | 3 | 91 | — | |
Tota1 | 4 | 50 | 79 | 65 | 42 | 12 | 252 | 53.1 | |
Total | Pulin. tub. class T.B. +, living | 7 | 30 | 54 | 33 | 26 | 18 | 168 | 35.4 |
relatives | Pulm. tub. class T.B. —, living | 1 | 8 | 9 | 7 | 3 | 8 | 36 | 7.5 |
as above | Pulm. tub. (condition of sputum unknown), living | 1 | 10 | 7 | 6 | 6 | 30 | 6.3 | |
Non-pulm. tub., living | — | 6 | 10 | 11 | 6 | 2 | 35 | 7.4 | |
Non-pulm. tub., dead within last 5 years | — | — | 3 | 1 | 4 | — | 8 | 1.7 | |
Pulm. tub., dead within last 5 years | 3 | 49 | 57 | 37 | 34 | 18 | 198 | 41.7 | |
Total | 11 | 94 | 143 | 96 | 79 | 52 | 475 | 1000 | |
Other contacts | 2 | 38 | 45 | 44 | 66 | 54 | 249 | — | |
No known contact | 22 | 229 | 387 | 301 | 296 | 199 | 1434 | — | |
Total number investigated | 35 | 361 | 575 | 441 | 441 | 305 | 2158 | — | |
Percentage showing important contact | 31.4 | 26.0 | 24.9 | 21.8 | 17.9 | 17.0 | _ | 220 | |
Percentage showing any contact | 37.1 | 36.6 | 32.7 | 31.7 | 32.9 | 34.8 | - | 33.5 | |
Previously known case | Age group of new cases | Total | |||||||
Relationship | Clinical classification | 0-15 | 16-20 | 21-25 | 26-30 | 31-40 | Ovei 40 | No. | Percentage |
Parent | Pulm. tub. class T.B. +, living | - | — | ||||||
Pulm. tub class T.B. — , living | : | — | — | - | 6 | — | |||
Pulm. tub. (condition of sputum unknown), living | — | — | 1 | ||||||
Non-pulm. tub., living | — | — | - | 1 — | |||||
Pulm. tub., dead within last 5 years 3 | 3 | — | |||||||
Total | 58 | 4 | |||||||
Husband | Pulm. tub. class T.B. +, living | — | — | 5 | — | ||||
Pulm. tub. class T.B. —, living | — | — | — | — | — | 1 | — | ||
Pulm. tub. (condition of sputum unknown), living | — | — | — | — | — | — | |||
Non-pulm. tub., living | — | — | — | — | — | — | |||
Non-pulm. tub., dead within last 5 years | — | — | — | — | — | ||||
Pulm. tub., dead within last 5 years | — | — | — | 6 | 6 | — | |||
Total | — | — | |||||||
Child | Pulm. tub. class T.B. +, living | _ | — | — | — | ||||
Pulm. tub. class T.B —, living | _ | — | — | — | 5 | — | |||
Pulm. tub. (condition of sputum un- | — | — | — | — | — | ||||
Non-pulm. tub., living | — | — | 2 | _ | |||||
Non-pulm. tub . dead within last 5 years | — | _ | — | — | — | — | |||
Pulm. tub., dead within last 5 years | — | 6 | — | ||||||
Total | — | 5 | 45 | ||||||
Brother or | Pulm. tub. class T.B. +, living | 3 | — | ||||||
sister | Pulm. tub. class T.B. —, living | — | 6 | 2 | — | ||||
Pulm. tub. (condition of sputum unknown), living | —_ | _ | 5 | — | |||||
Non-pulm. tub., living | — | 5 | — | — | |||||
Non-pulm. tub., dead within last 5 years | — | — | — | — | — | ||||
Pulm. tub., dead within last 5 years | — | ||||||||
Tota1 | 252 | ||||||||
Total | Pulin. tub. class T.B. +, living | ||||||||
relatives | Pulm. tub. class T.B. —, living | 8 | |||||||
as above | Pulm. tub. (condition of sputum unknown), living | ||||||||
Non-pulm. tub., living | — | ||||||||
Non-pulm. tub., dead within last 5 years | — | — | 4 | — | |||||
Pulm. tub., dead within last 5 years | |||||||||
Total | 52 | ||||||||
Other contacts | 2 | — | |||||||
No known contact | 22 | 229 | — | ||||||
Total number investigated | — | ||||||||
Percentage showing important contact | 26.0 | _ | 220 | ||||||
Percentage showing any contact | - |
It will be seen that details are now available in respect of 3,021 males and 2,158
females, whose sputum contained tubercle bacilli. Study of the details in the various
age groups as regards previous contact with other cases of the disease confirms the
original findings. Thus the frequency with which contact with a previous case is
noted is seen to diminish with increasing age; for instance, while 15.4 per cent.