Table 2.
Clinical outcomes among cases infected with STEC serogroups in Michigan, 2001–2012
| Serogroup | HUS (N = 1334) n (%)* |
Any bloody diarrhoea (N = 1332) n (%)* |
Non-bloody diarrhoea only (N = 1332) n (%)* |
Hospitalization (N = 1349) n (%)* |
|---|---|---|---|---|
| O157 | 22 (2·6) | 668 (82·2) | 145 (17·8) | 432 (51·1) |
| O45 | 0 (0·0) | 94 (69·1) | 42 (30·9) | 60 (43·2) |
| O103 | 1 (1·5) | 31 (50·0) | 31 (50·0) | 10 (14·9) |
| O26 | 0 (0·0) | 34 (63·0) | 20 (37·0) | 13 (22·4) |
| O111 | 0 (0·0) | 19 (63·3) | 11 (36·7) | 12 (40·0) |
| O145 | 0 (0·0) | 19 (86·4) | 3 (13·6) | 7 (30·4) |
| O121 | 0 (0·0) | 6 (60·0) | 4 (40·0) | 5 (45·5) |
| Others | 1 (2·4) | 15 (38·5) | 24 (61·5) | 12 (29·3) |
| Unknown | 2 (1·5) | 70 (58·3) | 50 (41·7) | 60 (44·4) |
| Total† | 26 (2·2) | 956 (71·8) | 330 (24·8) | 611 (45·3) |
The denominator varied for each of the variable/serotype combinations due to missing data.
* Percentages represent the % of the total number of cases for each serogroup.
† Totals represent the total number and % of cases with each outcome including those cases missing serogroup data.