Table 1 Ascaris lumbricoides and Trichuris trichiura prevalence and infection intensity (as mean of duplicate Kato-Katz thick smears) among 934 primary schoolchildren from Port Elizabeth, South Africa, in early 2015, stratified by sex and age
Sex | Age (years) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Male (n = 472) | Female (n = 462) | 9 (n = 282) | 10 (n = 375) | 11 (n = 216) | 12 (n = 61) | ||||
n (%) | n (%) | P a | n (%) | n (%) | n (%) | n (%) | P a | ||
A. lumbricoides | Prevalenceb | 134 (28) | 114 (25) | 0.305 | 43 (15) | 108 (29) | 74 (34) | 23 (38) | 0.691 |
Infection intensityc | |||||||||
Mean EPGd (95 % CI) | 10,866 (7907–14,934) | 9256 (6633–12,915) | 0.333 | 8411 (4357–16,238) | 9038 (6309–12,948) | 10,899 (7306–16,258) | 18,630 (11,725–29,602) | 0.252 | |
Light (1–4999) | 36 (8) | 36 (8) | 10 (4) | 41 (11) | 18 (8) | 3 (5) | |||
Moderate (5000–49,999) | 67 (14) | 58 (13) | 26 (9) | 43 (11) | 39 (18) | 17 (28) | |||
Heavy (≥50,000) | 31 (7) | 20 (4) | 7 (2) | 24 (6) | 17 (8) | 3 (5) | |||
T. trichiura | Prevalencee | 114 (24) | 93 (20) | 0.065 | 31 (11) | 88 (23) | 68 (32) | 20 (33) | 0.208 |
Infection intensityc | |||||||||
Mean EPGd (95 % CI) | 757 (572–1002) | 747 (557–1002) | 0.950 | 737 (471–1155) | 640 (467–877) | 940 (661–1336) | 744 (322–1723) | 0.446 | |
Light (1–999) | 65 (14) | 55 (12) | 16 (6) | 55 (15) | 36 (17) | 13 (21) | |||
Moderate (1000–9999) | 44 (9) | 35 (8) | 15 (5) | 32 (9) | 27 (13) | 5 (8) | |||
Heavy (≥10,000) | 5 (1) | 3 (1) | 0 (0) | 1 (0.3) | 5 (2) | 2 (3) | |||