Variable | Non-secondary case (n = 1489) | Secondary case (n = 6) | P | ||
---|---|---|---|---|---|
No. | (%) | No. | (%) | ||
Socio-demographic | |||||
 Age category (years) | |||||
  ≤15 | 481 | 99.8 | 1 | 0.2 | 0.151 |
  16–30 | 362 | 98.9 | 4 | 1.1 | |
  31–45 | 356 | 99.7 | 1 | 0.3 | |
  46+ | 290 | 100 | 0 | 0.0 | |
 Gender | |||||
  Female | 836 | 100 | 0 | 0.0 | 0.007 |
  Male | 653 | 99.1 | 6 | 0.9 | |
 Education of household head | |||||
  No school | 40 | 100 | 0 | 0.0 | 0.450 |
  Primary school | 481 | 99.8 | 1 | 0.2 | |
  Secondary school | 670 | 99.3 | 5 | 0.7 | |
  Tertiary school | 298 | 100 | 0 | 0.0 | |
 Occupation category | |||||
  Unemployed | 281 | 100 | 0 | 0.0 | 0.010 |
  Not forest-related job | 847 | 99.9 | 1 | 0.1 | |
  Forest-related job | 361 | 98.6 | 5 | 1.4 | |
 Wealth index ( quintile) | |||||
  1st | 295 | 99.7 | 1 | 0.3 | 0.796 |
  2nd | 306 | 99.7 | 1 | 0.3 | |
  3rd | 302 | 99.3 | 2 | 0.7 | |
  4th | 444 | 99.8 | 1 | 0.2 | |
  5th | 142 | 99.3 | 1 | 0.7 | |
 Sub-district | |||||
  Lembah Seulawah | 525 | 99.4 | 3 | 0.6 | 0.917 |
  Kuta Cot Glie | 374 | 99.7 | 1 | 0.3 | |
  Lhoong | 511 | 99.6 | 2 | 0.4 | |
  Indrapuri | 79 | 100 | 0 | 0.0 | |
  Lhoknga | n/a | n/a | n/a | n/a | |
Clinical history | |||||
 Reported fever in previous 2 weeks | |||||
  No | 1445 | 99.7 | 4 | 0.3 | 0.013 |
  Yes | 44 | 95.7 | 2 | 4.3 | |
Prevention and behaviours | |||||
 Travel | |||||
  No | 1340 | 99.8 | 3 | 0.2 | 0.016 |
  Yes | 149 | 98.0 | 3 | 2.0 |  |
 Bed net ownership | |||||
  No ITN | 499 | 99.2 | 4 | 0.8 | 0.289 |
  <1 ITN/2 people | 712 | 99.7 | 2 | 0.3 |  |
  ≥1 ITN/2 people | 278 | 100 | 0 | 0.0 |  |
 Slept under bed net previous night | |||||
  No | 658 | 99.3 | 5 | 0.7 | 0.094 |
  Yes | 831 | 99.9 | 1 | 0.1 |  |
 House spraying in previous 1 year | |||||
  No | 1381 | 99.6 | 6 | 0.4 | 0.493 |
  Yes | 108 | 100 | 0 | 0.0 |  |
 Slept outside house last night | |||||
  No | 1459 | 99.6 | 6 | 0.4 | 0.725 |
  Yes | 30 | 100 | 0 | 0.0 |  |
Forest exposure and environment | |||||
 Workplace near or in forest | |||||
  No | 1027 | 100 | 0 | 0.0 | <0.0001 |
  Yes, overnights not required | 273 | 100 | 0 | 0.0 |  |
  Yes, overnights required | 189 | 96.9 | 6 | 3.1 |  |
  Distance workplace to forest (n = 462) | |||||
   In forest | 209 | 97.2 | 6 | 2.8 | 0.085 |
   <1 km | 191 | 100 | 0 | 0.0 |  |
   1–5 km | 59 | 100 | 0 | 0.0 |  |
   >5–10 km | 3 | 100 | 0 | 0.0 |  |
 Visited forest in the last month | |||||
  No | 1241 | 99.9 | 1 | 0.1 | 0.001 |
  Yes | 248 | 98.0 | 5 | 2.0 |  |
  Main reason (n = 253) |  |  |  |  |  |
   Residence | 108 | 99.1 | 1 | 0.9 | 0.430 |
   Work | 111 | 96.5 | 4 | 3.5 |  |
   Other reason | 29 | 100 | 0 | 0.0 |  |
  Median visit (days), range (n = 253) | 30 (1–30) | – | 14 (4–30) | – | 0.596 |
 Season | |||||
  Low transmission | 734 | 99.7 | 2 | 0.3 | 0.688 |
  High transmission | 793 | 99.5 | 4 | 0.5 |  |
 Reported living near water bodies | |||||
  No | 633 | 99.7 | 2 | 0.3 | 0.650 |
  Yes | 856 | 99.5 | 4 | 0.5 |  |
 Reported living near or in forest | |||||
  No | 712 | 99.7 | 2 | 0.3 | 0.689 |
  Yes | 777 | 99.5 | 4 | 0.5 |  |
 Housing quality | |||||
  Good | 831 | 99.6 | 3 | 0.4 | 0.858 |
  Moderate | 335 | 99.4 | 2 | 0.6 |  |
  Poor | 323 | 99.7 | 1 | 0.3 |  |
RACD and index case level factors | |||||
 Distance from home of index case | |||||
  At the same house | 203 | 98.1 | 4 | 1.9 | 0.020 |
  <100 m | 926 | 99.8 | 2 | 0.2 |  |
  100–499 m | 319 | 100 | 0 | 0.0 |  |
  ≥500 m | 41 | 100 | 0 | 0.0 |  |
 Population coverage of RACD | |||||
  <90 % | 429 | 99.1 | 4 | 0.9 | 0.062 |
  ≥90 % | 1060 | 99.8 | 2 | 0.2 |  |
 Time from report of index case to RACD | |||||
  At the same day | 45 | 100 | 0 | 0.0 | 0.804 |
  1–7 days | 1388 | 99.6 | 6 | 0.4 |  |
  >7 days | 56 | 100 | 0 | 0.0 |  |
 Age category of index case (years) | |||||
  ≤15 | 18 | 100 | 0 | 0.0 | 0.715 |
  16–30 | 770 | 99.5 | 4 | 0.5 |  |
  30–45 | 655 | 99.7 | 2 | 0.3 |  |
 Gender of index case | |||||
  Female | 63 | 100 | 0 | 0.0 | 0.607 |
  Male | 1426 | 99.6 | 6 | 0.4 |  |
 Occupation category of index case | |||||
  Not forest-related job | 393 | 99.5 | 2 | 0.5 | 0.658 |
  Forest-related job | 1096 | 99.6 | 4 | 0.4 |  |