Table 3.
Mean maximal oxygen uptake (VO2 max) estimatesa (ml kg-1 min-1) among 934 primary schoolchildren from Port Elizabeth, South Africa, in February 2015, stratified by sex, age and Ascaris lumbricoides and Trichuris trichiura infection status
| A. lumbricoides | T. trichiura | |||||
|---|---|---|---|---|---|---|
| Non-infected (n = 686) | Infected (n = 248) | P b | Non-infected (n = 727) | Infected (n = 207) | P b | |
| Sex | ||||||
| Male (n = 472) (95 % CI) | 51.1 (50.7–51.5) | 50.0 (49.3–50.6) | 0.113 | 51.1 (50.7–51.5) | 49.8 (49.1–50.6) | 0.204 |
| Female (n = 462) (95 % CI) | 47.5 (47.2–47.8) | 47.4 (46.7–48.0) | 0.946 | 47.5 (47.1–47.8) | 47.4 (46.7–48.1) | 0.911 |
| Age (years) | ||||||
| 9 (n = 282) (95 % CI) | 49.6 (49.1–50.0) | 48.6 (47.5–49.6) | 0.104 | 49.6 (49.1–50.0) | 48.1 (47.0–49.3) | 0.038 |
| 10 (n = 375) (95 % CI) | 48.9 (48.4–49.4) | 48.8 (48.2–49.5) | 0.955 | 48.9 (48.4–49.4) | 48.9 (48.2–49.6) | 0.778 |
| 11 (n = 216) (95 % CI) | 49.2 (48.4–49.9) | 48.8 (47.7–49.8) | 0.489 | 49.3 (48.6–50.0) | 48.4 (47.3–49.5) | 0.151 |
| 12 (n = 61) (95 % CI) | 49.9 (48.7–51.0) | 49.0 (47.0–51.1) | 0.424 | 49.2 (48.0–50.5) | 50.2 (48.2–52.1) | 0.548 |
aAll mean VO2 estimates are expressed in ml kg−1 min−1 and are adjusted for age, with 95 % confidence intervals in parentheses when appropriate
bAll P-values are calculated using either mixed linear or mixed logistic regression, as appropriate, adjusted for clustering of schools