Volume 10, Number 7—July 2004
Research
Sporadic Cryptosporidiosis Case-Control Study with Genotyping
Paul R. Hunter*
, Sara Hughes†, Sarah Woodhouse†, Qutub Syed†, Neville Q. Verlander‡, Rachel M. Chalmers§, Kenton Morgan¶, Gordon Nichols†, Nick Beeching#, and Keith Osborn**
, Sara Hughes†, Sarah Woodhouse†, Qutub Syed†, Neville Q. Verlander‡, Rachel M. Chalmers§, Kenton Morgan¶, Gordon Nichols†, Nick Beeching#, and Keith Osborn**Table 2
Final multivariable model, all dataa,b
| Variables | Adjusted OR | 95% CI | p value |
|---|---|---|---|
| Health authority |
|||
| A | 1.000 | 0.004 | |
| B | 0.125 | 0.041–0.382 | |
| C | n.e. | n.e. | |
| D | 0.482 | 0.166–1.398 | |
| E | 1.610 | 0.247–10.49 | |
| F | 0.225 | 0.080–0.635 | |
| G | 0.326 | 0.068–1.552 | |
| H | 0.921 | 0.261–3.250 | |
| I | n.e. | n.e. | |
| J | 0.310 | 0.117–0.822 | |
| K | 316.600 | 0–∞ | |
| L | 0.175 | 0.012–2.566 | |
| M | 0.377 | 0.130–1.097 | |
| N | 1.203 | 0.289–4.999 | |
| O | 0.367 | 0.11–1.145 | |
| P | 0.562 | 0.134–2.354 | |
| Q | 198.400 | 0–∞ | |
| R | 0.449 | 0.146–1.383 | |
| S | 0.206 | 0.053–0.804 | |
| T | 0.366 | 0.078–1.720 | |
| U |
0.546 |
0.207–1.443 |
|
| Age |
0.994/y |
0.982–1.006 |
0.314 |
| Travel outside UK |
|||
| Y | 5.650 | 2.861–11.160 | < 0.001 |
| N |
1.000 |
||
| Contact with another person with diarrhea |
|||
| Y | 4.614 | 2.449–8.691 | < 0.001 |
| N |
1.000 |
||
| Touch any cattle |
|||
| Y | 3.876 | 1.4196–10.04 | 0.003 |
| N |
1.000 |
||
| Usually wash before eating raw fruit and vegetables |
|||
| Always | 1.000 | 0.108 | |
| Usually | 0.966 | 0.605–1.543 | |
| Sometimes | 0.746 | 0.436–1.274 | |
| Never |
2.478 |
0.965–6.362 |
|
| Toileting contact with child <5 y |
|||
| Y | 1.851 | 1.079–3.175 | 0.025 |
| N |
1.000 |
||
| Number of glasses of unboiled water drunk at home |
1.135 per glass |
1.019–1.265 |
0.019 |
| Eat ice cream |
|||
| Y | 0.472 | 0.299–0.746 | 0.001 |
| N |
1.000 |
||
| Eat raw vegetables |
|||
| Y | 0.532 | 0.346–0.820 | 0.004 |
| N |
1.000 |
||
| Eat tomatoes |
|||
| Y | 0.616 | 0.392–0.969 | 0.035 |
| N | 1.000 |
aEstimated from 552 observations (261 case-patients and 291 controls).
bOR, odds ratio; CI, confidence intervals; n.e., not estimable.
