Table 1 Baseline characteristics of the study population
Study population, N = 9,875 | n | % |
|---|---|---|
Sex (ratio = 0.98) | ||
- Male | 4,900 | 49.62 |
Age groups: | ||
- ≤ 9 years | 2,684 | 27.18 |
- 10–19 years | 2,379 | 24.09 |
- 20–29 years | 1,733 | 17.55 |
- 30–39 years | 1,110 | 11.24 |
- 40–49 years | 954 | 9.66 |
- = 50 years | 1,015 | 10.28 |
Ethnic groups: | ||
- Ra-glai | 8,205 | 83.09 |
- K'ho | 1,339 | 13.56 |
- Kinh | 314 | 3.18 |
- Others (Chu, Cham, Ede) | 17 | 0.17 |
Education level (age ≥ 20, n = 4,812): | ||
- None | 2,197 | 45.66 |
- Primary school | 2,258 | 46.92 |
- Secondary school or higher | 341 | 7.09 |
- Missing | 16 | 0.33 |
Occupation: | ||
- None (children, students, retired people) | 4,376 | 44.31 |
- Forest work (farming & other) | 5,242 | 53.08 |
- Other (teacher, health staff.) | 240 | 2.43 |
- Missing | 17 | 0.17 |
Bed net use in the village: | ||
- Sleep under ITN | 8,707 | 88.17 |
- Sleep under an untreated bed net | 494 | 5 |
- Sleep without bed net | 656 | 6.64 |
- Missing | 18 | 0.18 |
Forest activities: | ||
- Never | 4,176 | 42.29 |
- Only during day | 3,244 | 32.85 |
- Work and sleep in the forest | 2,438 | 24.69 |
- Missing | 17 | 0.17 |
Days/month spent in forest, median [range] (n = 5,682) | 23 [1;30] | |
Nights/month spent in forest, median [range] (n = 2,438) | 16 [1;30] | |
Bednet/hammock use in the forest (n = 2,438): | ||
- Sleep under ITN | 1,717 | 70.43 |
- Sleep in a hammock | 319 | 13 |
- Sleep under ITN and hammock | 80 | 3.28 |
- Sleep without bed-net and hammock | 322 | 13.21 |
Households N = 1,867 | ||
House structure: | ||
- Thatched bamboo | 951 | 50.94 |
- Wooden boards | 374 | 20.03 |
- Dried mud | 260 | 13.93 |
- Bricks | 282 | 15.1 |
Socio economic level: | ||
- No radio, TV, motorbike | 857 | 45.9 |
- Only a radio | 517 | 27.69 |
- Only TV | 99 | 5.3 |
- TV + radio (no moto) | 94 | 5.03 |
- At least a motorbike (+/-radio, TV) | 300 | 16.07 |