Table 2. Admission Clinical Characteristics of 792 Inpatients <15 Years by Species of Shigella.
| Characteristic | S. dysenteriae type 1 (n = 157) | S. dysenteriaetype 2–10 (n = 24) | S. flexneri(n = 504) | S. boydii(n = 77) | S. sonnei(n = 30) | P for overallcomparison | All patients withnon-S. dysenteriaetype 1 infection(n = 635) | P for S. dysenteriae type 1 versus non-S. dysenteriae type 1 infection |
| Age, m (median, 25th, 75th quartiles) | 24 (13, 43) | 26 (10, 50) | 13 (7, 30) | 13 (6, 30) | 8 (4, 15) | <0.001* | 13 (6, 30) | <0.001 |
| Male | 92 (59) | 15 (63) | 285 (57) | 43 (56) | 18 (60) | 0.958 | 361 (57) | 0.719 |
| Duration of illness, d (median, 25th, 75th centiles) † | 6 (4, 9) | 2 (1, 10) | 5 (3, 14) | 5 (3, 15) | 5 (3, 10) | 0.051‡ | 5 (3, 14) | 0.405 |
| Severe dehydration | 4 (3) | 0 | 23 (5) | 3 (4) | 3 (10) | 0.304 | 29 (5) | 0.362 |
| Temperature ≥ 38.0°C | 107 (68) | 12 (50) | 265 (53) | 27 (35) | 15 (50) | <0.001§ | 319 (50) | <0.001 |
| Weight for age, % of median (mean ± SD) || ¶ | 62±14 | 65±7 | 57±15 | 55±13 | 59±16 | <0.001** | 57±14 | <0.001 |
| Pedal edema | 27 (17) | 4 (17) | 88 (18) | 11 (14) | 2 (7) | 0.603 | 105 (17) | 0.842 |
Values are n (%) unless noted.
P<0.020: S. dysenteriae type 1 versus S. flexneri, S. boydii, or S. sonnei; S. dysenteriae types 2–10 versus S. flexneri, S. boydii or S. sonnei; S. flexneri versus S. sonnei. P<0.008: S. dysenteriae type 1 versus non-S. dysenteriae type 1.
Duration of illness data were missing for 2/157 patients in the S. dysenteriae type 1 group, 5/504 patients in the S. flexneri group, and 1/77 patient in the S. boydii group.
P<0.009: S. dysenteriae types 2–10 versus S. dysenteriae type 1, S. flexneri, S. boydii or S. sonnei.
P<0.007: S. dysenteriae type 1 versus S. flexneri or S. boydii; S. flexneri versus S. boydii.
Weight-for-age was calculated as a percentage of the United States National Center for Health Statistics median weight-for-age17.
Weight-for-age data were missing for 5/157 patients in the S. dysenteriae type 1 group, 1/24 patient in the S. dysenteriae type 2–10 group, and 11/504 patients in the S. flexneri group.
P<0.002: S. dysenteriae type 1 versus S. flexneri or S. boydii; S. dysenteriae types 2–10 versus S. flexneri or S. boydii.