Table 2.
General characteristics of botulism cases by classification (possible, probable and confirmed) in Spain 1997–2019.
| Total | Confirmed | Probable | Possible | ||
|---|---|---|---|---|---|
| N (%) | N (%) | N (%) | |||
| Age group and sex | 232 | 77 (33.19) | 63 (27.16) | 92 (39.66) | |
| <1 year (F) | 12 | 11 (91.67) | 0 | 1 (8.33) | |
| <1 year (M) | 18 | 13 (72.22) | 1 (5.56) | 4 (22.22) | |
| 1–14 years (F) | 3 | 2 (66.67) | 1 (33.33) | 0 | |
| 1–14 years (M) | 8 | 2 (25) | 1 (12.5) | 5 (62.5) | |
| 15–24 years (F) | 8 | 1 (12.5) | 5 (62.5) | 2 (25) | |
| 15–24 years (M) | 7 | 1 (14.29) | 2 (28.57) | 4 (57.14) | |
| 25–44 years (F) | 15 | 3 (20) | 7 (46.67) | 5 (33.33) | |
| 25–44 years (M) | 32 | 7 (21.88) | 12 (29.27) | 18 (43.9) | |
| 45–64 years (F) | 31 | 8 (25.81) | 14 (45.16) | 9 (29.03) | |
| 45–64 years (M) | 41 | 11 (26.81) | 12 (29.27) | 18 (43.9) | |
| 65–80 years (F) | 30 | 5 (16.67) | 5 (16.67) | 20 (66.67) | |
| 65–80 years (M) | 22 | 10 (45.45) | 3 (13.64) | 9 (40.91) | |
| >80 years (F) | 3 | 2 (66.67) | 0 | 1 (33.33) | |
| >80 years (M) | 2 | 1 (50) | 0 | 1 (50) | |
| p-value | <0.001 | ||||
| Category | |||||
| Food-borne | 204 | 54 (26.47) | 62 (30.39) | 88 (43.14) | |
| Intestinal/infant | 28 | 23 (82.14) | 1 (3.57) | 4 (14.29) | |
| p-value | <0.001 | ||||
| Outbreak-related | |||||
| No | 115 | 49 (42.61) | 5 (4.35) | 61 (53.04) | |
| Yes | 117 | 28 (23.93) | 58 (49.57) | 31 (26.50) | |
| p-value | <0.001 | ||||
| Antitoxin administration | |||||
| Yes | 133 | 40 (30.08) | 31 (23.31) | 62 (46.62) | |
| No | 58 | 24 (41.38) | 14 (24.14) | 20 (34.48) | |
| Unknown | 41 | 13 (31.71) | 18 (43.90) | 10 (24.39) | |
| p-value | 0.025 |
F: female; M: male.