Table 2.
Estimated age adjusted Toxocara seroprevalence in the United States among persons ≥ 6 years of age by factor and race/Hispanic origin, NHANES 2011–2014
| entire study population (n=13509) |
Non-Hispanic White (ref) (n=4972) |
Non-Hispanic Black (n=3114) |
Non-Hispanic Asian (n=1581) |
Mexican American (n=2010) |
|||
|---|---|---|---|---|---|---|---|
| factor | sample size | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | % (95% CI) | |
| race | 13509 | 5.0 (4.2, 5.8) | 3.7 (2.9, 4.5) | 6.6 (5.4, 8.0)+++ | 7.3 (5.9, 9.0)+++ | 6.1 (4.4, 8.2)+ | |
| sex | |||||||
| female (ref) | 6859 | 3.8 (3.1, 4.6) | 2.5 (1.9, 3.3) | 4.9 (3.8, 6.3) | 5.6 (4.1, 7.4) | 5.1 (3.6, 7.1) | |
| male | 6650 | 6.2 (5.3, 7.2)*** | 4.8 (3.8, 6.0)*** | 8.8 (6.9, 11.0)*** | 9.5 (7.1, 12.3)** | 7.3 (4.9, 10.5) | |
| poverty level | |||||||
| at or above (ref) | 9144 | 3.9 (3.3, 4.5) | 3.0 (2.5, 3.6) | 5.9 (4.5, 7.5) | 6.3 (4.8, 8.0) | 4.6 (3.0, 6.6) | |
| below | 3374 | 10.2 (8.4, 12.1)*** | 8.0 (5.0, 12.1)** | 8.6 (6.5, 11.0)* | 11.5 (6.6, 18.2) | 10.4 (7.0, 14.7)** | |
| crowding index | |||||||
| (persons per room) | <0.5 (ref) | 4471 | 3.5 (3.0, 4.2) | 3.1 (2.4, 3.8) | 6.8 (4.5, 9.8) | 5.4 (2.8, 9.4) | 4.0 (1.3, 9.3)∫∫ |
| 0.5–0.99 | 5810 | 5.6 (4.7, 6.7)*** | 4.3 (3.2, 5.6) | 7.2 (5.6, 9.0) | 8.7 (5.9, 12.3) | 3.8 (2.3, 5.9) | |
| ≥1 | 3124 | 10.5 (8.3, 13.0)*** | 8.3 (3.9, 15.1)*∫ | 8.4 (5.2, 12.7) | 9.3 (6.0, 13.5) | 11.0 (7.4, 15.5)** | |
| head of household | |||||||
| education | some college (ref) | 7115 | 3.4 (2.8, 4.0) | 2.6 (2.0, 3.2) | 5.2 (4.0, 6.5) | 7.1 (5.7, 8.8) | 3.0 (1.4, 5.4) |
| high school graduation | 2863 | 6.4 (5.3, 7.6)*** | 5.4 (3.9, 7.3)** | 7.7 (5.6, 10.3)* | 5.7 (2.7, 10.5) | 6.5 (4.3, 9.5)** | |
| some high school | 1872 | 7.8 (6.3, 9.5)*** | 5.9 (3.8, 8.6)** | 7.8 (5.3, 11.0) | 5.8 (1.7, 13.8)†‡∫ | 7.9 (4.6, 12.3)* | |
| <high school | 1210 | 11.1 (8.5, 14.2)*** | 9.0 (3.7, 17.7)*∫ | 18.4 (8.5, 32.8)*† | 8.2 (3.3, 16.3)†∫ | 8.1 (5.0, 12.3)** | |
| birthplace | |||||||
| US (ref) | 10257 | 3.7 (3.1, 4.4) | 3.5 (2.8, 4.4) | 5.5 (4.5, 6.8) | 1.1 (0.3, 2.6) ∫ | 2.7 (1.5, 4.4) | |
| non-US | 3247 | 11.9 (9.7, 14.4)*** | 7.8 (4.0, 13.4) | 15.3 (8.3, 24.9)* | 8.1 (6.3, 10.2)*** | 8.6 (6.2, 11.7)*** | |
| asthma diagnosis | |||||||
| no (ref) | 11285 | 5.1 (4.3, 5.9) | 3.6 (2.8, 4.5) | 7.1 (5.8, 8.7) | 7.4 (5.8, 9.3) | 6.2 (4.4, 8.4) | |
| yes | 2215 | 4.5 (3.5, 5.5) | 4.0 (2.8, 5.5) | 4.0 (2.6, 5.9)*** | 7.2 (3.7, 12.5) | 4.9 (2.6, 8.4) |
P < 0.001,
<0.01,
<0.05 by two sample t-test for each covariate level relative to the reference group
P < 0.001,
<0.01,
<0.05 from a two sample t-test comparing age adjusted estimate for each race/Hispanic origin subgroup to the non-Hispanic White reference group for the total population
estimate with <10 degrees of freedom
estimate based on <10 positive sample persons
relative standard error (RSE) >30% and <40%,
RSE >40% and <50%,
RSE >50% and <60%.
Elevated RSE may result in unstable estimates.
95% confidence interval estimated by Korn and Graubard method [13]
Estimates are weighted to represent the total U.S. population and account for oversampling and nonresponse to the household interview and physical examination.