Table 2.
Incidence rate of clinical malaria attacks and estimations from univariate analysis of individual and collective variables (n = 4 531, except other indication)
| Number of clinical malaria attacks | Number of individuals | Number of person-days under survey | Incidence rate per 1,000 person-month | RR | 95% CI | p | |
|---|---|---|---|---|---|---|---|
|
Age |
|
|
|
|
|
|
|
| 18 - 24 y |
66 |
2 087 |
262 561 |
7.65 |
1 |
|
|
| 25 - 29 y |
49 |
1 432 |
178 907 |
8,33 |
1,12 |
0,77 - 1,64 |
0,54 |
| 30 - 39 y |
22 |
866 |
110 038 |
6,08 |
0,82 |
0,50 - 1,34 |
0,43 |
| 40 - 56 y |
3 |
137 |
17 568 |
5.19 |
0,74 |
0,23 - 2,44 |
0,63 |
|
Manager |
|
|
|
|
|
|
|
| No |
117 |
3 223 |
405 122 |
8.48 |
1 |
|
|
| Yes |
23 |
1 308 |
167 240 |
4.91 |
0,596 |
0,380 - 0,935 |
0,024 |
|
Age and manager status |
|
|
|
|
|
|
|
| Manager |
23 |
1 162 |
146 591 |
4.77 |
1 |
|
|
| Non Manager |
|
|
|
|
|
|
|
| 18 - 19 y |
7 |
256 |
32 198 |
6.61 |
1,19 |
0,51 - 2,81 |
0,682 |
| 20 - 24 y |
53 |
1 607 |
203 061 |
7.94 |
1,62 |
0,96 - 2,58 |
0,074 |
| ≥25 y |
57 |
1 491 |
188 744 |
9.19 |
1,90 |
1,16 - 3,09 |
0,010 |
|
Year of arrival in Ivory Coast |
|
|
|
|
|
|
|
| 2002, 2003, 2005 or 2006 |
49 |
2 519 |
298 597 |
4.99 |
1 |
|
|
| 2004 |
91 |
2 012 |
273 766 |
10.1 |
1,80 |
1,10 - 2,97 |
0,020 |
|
Number of sites visited |
|
|
|
|
|
|
|
| <10 sites |
98 |
3 469 |
430 613 |
6.78 |
1 |
|
|
| ≥10 sites |
42 |
1 062 |
141 750 |
9.01 |
1,454 |
0,866 - 2,442 |
0,157 |
|
Average duration of the stay by site |
|
|
|
|
|
|
|
| <15 days |
44 |
1 382 |
164 372 |
8.14 |
1 |
|
|
| ≥15 days | 96 | 3 149 | 407 991 | 7.16 | 0,813 | 0,486 - 1,360 | 0,43 |
CI = confi dence interval; RR = relative risk.