Table 2.
Anthropometric indicators and haemoglobin concentrations among 934 primary schoolchildren, stratified by Ascaris lumbricoides and/or Trichuris trichiura infection status, from Port Elizabeth, South Africa, in February 2015
| Non-infected children | A. lumbricoides single infection | T. trichiura single infection | A. lumbricoides-T. trichiura co-infection | ||
|---|---|---|---|---|---|
| n = 635 | n = 248 | n = 207 | n =156 | P a | |
| Anthropometric | |||||
| Meanb weight [kg] (95 % CIc) | 31.6 (31.0–32.2) | 28.4 (27.7–29.1) | 27.8 (27.0–28.5) | 27.8 (26.9–28.6) | 0.011 |
| Meanb height [cm] (95 % CIc) | 133.9 (133.3–134.5) | 131.8 (130.9–132.6) | 131.1 (130.1–132.1) | 131.1 (130.0–132.2) | 0.009 |
| Meanb BMI [kg m-2] (95 % CIc) | 17.5 (17.2–17.7) | 16.2 (16.0–16.5) | 16.0 (15.7–16.3) | 16.1 (15.7–16.4) | 0.024 |
| n (%) wastedd | 15 (2.4) | 17 (6.9) | 16 (7.7) | 12 (7.7) | 0.418 |
| n (%) stuntede | 37 (5.8) | 47 (19.0) | 47 (22.7) | 36 (23.1) | 0.006 |
| Haemotologic | |||||
| Meanb haemoglobin [g l-1] (95 % CIc) | 123.1 (122.3–123.8) | 120.4 (119.2–121.6) | 119.5 (118.3–120.6) | 119.5 (118.2–120.8) | 0.009 |
aAll P-values are calculated using either mixed linear or mixed logistic regression, as appropriate, adjusted for clustering of schools
bArithmetic mean
c95 % confidence interval
dWasting is defined as ≤ -2 in BMIZ score
eStunting is defined as ≤ -2 HAZ score