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Table 1 Epidemiological characteristics of individuals with imported malaria

From: Risk factors for the accuracy of the initial diagnosis of malaria cases in China: a decision-tree modelling approach

Factors

Number (%)

Gender (n = 494)

 Male

485 (98.2%)

 Female

9 (1.8%)

Age (years) (n = 494)

 < 35

205 (41.5%)

 ≥ 35

289 (58.5%)

Marital Status (n = 494)

 Married

394 (79.8%)

 Single/divorce/separated

100 (20.2%)

Occupation (n = 494)

 Agriculture

170 (34.4%)

 No-agriculture

324 (65.6%)

Residence (n = 489)

 Rural

304 (62.2%)

 Urban

185 (37.8%)

Region (n = 494)

 Eastern

67 (13.6%)

 Central

309 (62.6%)

 Western

118 (23.9%)

Plasmodium species (n = 494)

 Unclassified

68 (13.8%)

 Plasmodium falciparum

308 (62.4%)

 Plasmodium ovale

15 (3.0%)

 Plasmodium vivax

95 (19.2%)

 Plasmodium malariae

3 (0.6%) 

 Mixed

5 (1.0%)

Rank of healthcare facilities for the initial diagnosis (n = 494)

 Village clinic

128 (25.9%)

 Township health center

20 (4.1%)

 County-level CDC

22 (4.5%)

 Prefecture-level CDC

15 (3.0%)

 Provincial-level CDC

2 (0.4%)

 County-level hospital

136 (27.5%)

 Prefecture-level hospital

130 (26.3%)

 Provincial-level hospital

41 (8.3%)

Initial diagnosis (n = 461)

 Misdiagnosis

265 (57.5%)

 Correct diagnosis

196 (42.5%)

Admission pathway (n = 494)

 Emergency

244 (49.4%)

 Outpatient

242 (49.0%)

 Referral

8 (1.6%)

Symptom (n = 494)

 Fever

491 (99.4%)

 Chills

209 (42.3%)

 Sweating

191 (38.7%)

 Splenomegaly

7 (1.4%)

 Anemia

41 (8.3%)

 Periodic

123 (24.9%)

Complications developed (n = 494)

 Yes

93 (18.8%)

 No

401 (81.2%)

Insurance status (n = 494)

 Insured

346 (70.0%)

 Uninsured

148 (30.0%)

Hospitalization cost (USD) (n = 486)

 36–500

106 (21.8%)

 501–1000

136 (28.0%)

 1001–2000

161 (33.1%)

 2001–34630

83 (17.1%)

Days

Mean, Median, Min, P10, P25, P75, P90, Max

Time interval from fever onset to initial diagnosis

2.0, 1, 0, 0, 3, 5,20

Time interval from initial diagnosis to final diagnosis

3.5, 2, 0, 0, 4, 8, 90

Time interval from fever onset to final diagnosis

5.5, 4, 1, 2, 7, 10, 90