Table I . — Influence of institutional life upon the prevalence of Trichuris trichiura among patients with different degrees of infection upon admission. 
41 
c^- 
Per 
cent. 
12.12 
0 
0 
6.25 
0 
33.33 
7.23 
10.26 
4.55 
3.57 
Infec- 
tions. 
^ O O r-i © i-H 
CD 
^03 rH 
Exam- 
ined. 
1 
CO O lO o o CO 
CO r-H rH rH 
83 
39 
44 
28 
15 years. 
Per 
cent. 
4.26 
5.88 
7.69 
3.85 
5.26 
34.69 
9.91 
4.42 
17.48 
19.09 
Infec- 
tions. 
CO 03 *0 i— 1 CO ^ 
T-t CO 
58 
CO 03 
rH ^ ^ 
Exam- 
ined. 
lo ^ to © go 
© CO CD 03 lO o 
CO 
585 
339 
246 
220 
9 to 15 years. 
Per 
cent. 
1.61 
10.71 
4.88 
16.67 
3.70 
16.47 
6.52 
2.80 
9.96 
9.18 
Infec- 
tions. 
CO CO N ^ CO ^ 
T— 1 
29 
6 
23 
19 
Exam- 
ined. 
CD 00 Tt« 1-H 1C 
oo w N 00 00 
rH 
445 
TT rH 
rH CO O 
03 03 03 
4 to 8 years. 
Per 
cent. 
2.01 
10.34 
0 
2.78 
2.27 
10.88 
4.34 
3.37 
5.25 
5.51 
Infec- 
tions. 
CD CD O rH CO O 
rH 
32 
12 
20 
19 
Exam- 
ined. 
298 
58 
66 
36 
132 
147 
737 
O rH iO 
O GO ^ 
CO CO CO 
1 to 3 years. 
Per 
cent. 
8.95 
10.17 
3.57 
13.04 
4.38 
7.75 
7.69 
9.11 
6.21 
5.36 
Infec- 
tions. 
34 
6 
3 
6 
7 
10 
99 
40 
26 
20 
Exam- 
ined. 
© 05 ^ CD © © 
00 lO CO ^ CD 03 
CO rH r — 1 
858 
05 © CO 
CO rH 
^ ^ CO 
1 year. 
Per 
cent. 
12.67 
13.79 
3.00 
5.88 
3.23 
8.70 
9.27 
12.86 
4.71 
4.33 
Infec- 
tions. 
N 00 CO ^ ^ 
CO 
GO 
lO CO C5 
^ rH 
Exam- 
ined. 
292 
58 
100 
68 
62 
46 
626 
350 
276 
208 
Government Hospital: 
White males 
Negro males 
White females 
Negro females 
Connecticut Hospital: 
Males ('white') 
Females (white) 
Total 
More heavilv infected 
Less heavily infected 
Less heavily infected (ex- 
cept negro women) 
