H—3l

APPENDIX Table I.—Composition of Test and Control Areas, by Types of Dwellings and Families

Table II.—Age and Sex Composition of First 1,000 Persons in Test and Control Areas

Table III. —Analysis of Illnesses Recorded in Test and Control Areas at First Visit

90

(See page 69) Total Houses Class of House. Persons. A rhilf c< School PreAU.UltS. school Visited. I. II. III. IV. Male. Female. Total. Children A. All Categories Areas — (a) Test 300 33 224 41 2 566 567 1,133 732 246 155 (b) Controls 303 30 237 34 2 548 553 1,101 717 256 128 B. Families Without Children Areas — (a) Test 118 16 83 19 140 157 297 297 (b) Controls 126 17 99 10 136 159 295 295 C. Families Including Only Pre-school Children Areas— (a) Test 39 4 31 4 72 71 143 89 54 (b) Controls 33 2 25 6 64 62 126 79 47 D. Families Including School-children Areas — (a) Test 143 13 110 18 2 354 339 693 346 246 101 (b) Controls 144 11 113 18 2 348 332 680 343 256 1 81 Note.—Classification of houses (social and economic) : I, superlative ; II, g ;ood ; III, fair ; IV, bad.

(See page 69) Age Group 45— 14Over 15. Males— Test areas Control areas 10 9 15 11 17 16 20 10 15 12 16 13 19 16 13 12 11 9 7 20 6 11 7 11 12 7 8 7 8 9 319 323 Females — Test areas Control areas 13 13 14 13 14 9 9 12 9 10 12 9 12 13 18 11 13 13 7 5 8 5 2 7 5 6 2 11 5 8 354 359

(See page 70) Before 1st November. After 1st November. X umber of " Cardinal" Symptoms. Duration 4 Days. Duration 4 Days+. Duration 4 Days. Duration 4 Days+. Test. Controls. Test. Controls. Test. Controls. Test. Controls. Five.. Four Three Two One .. Indefinite i 7 15 7 1 3 6 7 3 6 3 3 i 7 4 1 i 5 28 30 10 i 5 16 28 7 1 4 10 12 14 4 5 10 11 1 Total 30 17 15 13 74 57 45 27