Table 1. Profile of imported malaria cases from onset to diagnosis in Anhui Province, 2019–2021.
| Characteristics |
First stage,
n (%) |
Second stage,
n (%) |
χ 2 | P |
| * non-P. falciparum includes P. vivax, P. ovale, and P. malariae.
†medical facilities at provincial and township levels, and private facilities. | ||||
| Time from arrival in China to symptom onset | 28.115 | <0.001 | ||
| ≤30 days | 102 (92.7) | 23 (56.1) | ||
| >30 days | 8 (7.3) | 18 (43.9) | ||
| Time from onset to the first medical visit | 0.016 | 0.901 | ||
| ≤3 days | 93 (84.5) | 35 (85.4) | ||
| >3 days | 17 (15.5) | 6 (14.6) | ||
| Time from the first medical visit to diagnosis | 0.108 | 0.743 | ||
| ≤1 day | 72 (65.5) | 28 (68.3) | ||
| >1 day | 38 (34.5) | 13 (31.7) | ||
| Species | 14.682 | <0.001 | ||
| P. falciparum | 89 (84.0) | 22 (53.7) | ||
| Non-P. falciparum* | 17 (16.0) | 19 (46.3) | ||
| Level of medical facilities at the first medical visit | 6.951 | 0.008 | ||
| County or prefectural level | 63 (57.3) | 33 (80.5) | ||
| Other† | 47 (42.7) | 8 (19.5) | ||
| Diagnosis at the first medical visit | 0.003 | 0.953 | ||
| Other diseases | 37 (33.6) | 14 (34.1) | ||
| Malaria | 73 (66.4) | 27 (65.9) | ||