Table 1 Characteristics of the 546 cross-sectional survey volunteers

Plasmodium infection, number (%)

35 (6.4%)

 P. vivax

20

 P. falciparum

5

 Mixed P. vivax/P. falciparum

2

 Undetermined

8

Age (years), median (range)^a

22 (0.5–87)

 0–6 years, number

89

 7–12 years, number

107

 13–17 years, number

48

 18 years and older, number

298

Gender, number (%)^a

 Male

254 (46.7%)

 Female

289 (53.3%)

GPS location, number (%)

 Group 1 (close to Myanmar)

80 (14.7%)

 Group 2 (close to local facilities)

466 (85.3%)

Length of time in Thailand, number (%)^a

 More than 2 months

537 (100%)

Slept outside village last month, number (%)^a

 Yes

2 (0.4%)

 No

534 (99.6%)

Anti-malarial drugs taken in last 2 months, number (%)^a

 Yes

4 (0.7%)

 No

532 (99.3%)

Taking current medications, number (%)^a

 Yes

5 (0.9%)

 No

531 (99.1%)

Bed net used last night, number (%)^a

 Yes

529 (98.7%)

 No

7 (1.3%)

How long house has had bed net, number (%)^a

 Past 6 months

66 (12.4%)

 1 year or more

1 (0.2%)

 2 years or more

464 (87.4%)

Feeling unwell today, number (%)^a

 Yes

3 (0.6%)

 No

533 (99.4%)

Fever last 2 days, number (%)^a

 Yes

2 (0.4%)

 No

534 (99.6%)