Table 3 Univariate and multivariate results from negative binomial generalized linear mixed-effects model performed with # An. gibbinsi per trap as the outcome
Variable | Univariate analysis | Multivariate analysis | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
IRR | SE | 95% CI | p-value | IRR | SE | 95% CI | p-value | |||
HH location | ||||||||||
Lakeside | ||||||||||
Inland | 84.60 | 2.20 | [20.67, 538.13] | < 0.001 | *** | 86.50 | 2.25 | [20.28, 587.06] | < 0.001 | *** |
Trap type | ||||||||||
Indoor | – | – | - | – | - | - | - | - | ||
Outdoor gathering | 0.98 | 1.35 | [0.52, 1.85] | 0.96 | ns | 1.00 | 1.38 | [0.53, 1.86] | 0.989 | ns |
Animal pen | 3.18 | 1.36 | [1.75, 5.83] | < 0.001 | *** | 3.13 | 1.36 | [1.73, 5.72] | < 0.001 | *** |
Distance to stream (km) | 0.41 | 1.41 | [0.17, 0.77] | 0.01 | ** | – | – | – | – | |
# Rooms in HH | 0.43 | 1.48 | [0.18, 0.93] | 0.03 | * | – | – | – | – | |
# People in HH | 0.75 | 1.27 | [0.43, 1.19] | 0.22 | ns | – | – | – | – | |
Proportion sleeping under net | 0.75 | 5.27 | [0.02, 28.41] | 0.86 | ns | – | – | – | – | |
IRS status | ||||||||||
Yes | – | – | – | – | – | – | – | – | ||
No | 12.7 | 2.78 | [1.73, 136.51] | 0.01 | ** | – | – | – | – | |
Water source | ||||||||||
Bore hole | – | – | – | – | – | – | – | – | ||
Open well | 17.5 | 2.84 | [2.26, 135.94] | 0.01 | ** | – | – | – | – | |
Steam or pond | 46 | 3 | [5.35, 396.04] | < 0.001 | *** | – | – | – | – | |
Wall materials | ||||||||||
Bricks | – | – | – | – | – | – | – | – | ||
Concrete | 2.68 | 4.81 | [0.12, 58.28] | 0.53 | ns | – | – | – | – | |
Natural | 28.7 | 3.69 | [2.21, 371.22] | 0.01 | ** | – | – | – | – | |
Floor materials | ||||||||||
Finished | – | – | – | – | – | – | – | – | ||
Natural | 1.43 | 3.27 | [0.1, 17.03] | 0.761 | ns | – | – | – | – | |
Roof materials | ||||||||||
Grass | – | – | – | – | – | – | – | – | ||
Metal | 0.99 | 3.74 | [0, 21.95] | 0.997 | ns | – | – | – | – | |
Eaves | ||||||||||
Closed | – | – | – | – | – | – | – | – | ||
Open | 11.6 | 3.91 | [0.8, 168.05] | 0.073 | ns | – | – | – | – | |
Partial | 0.42 | 10.8 | [0, 45.2] | 0.718 | ns | – | – | – | – | |
Cooking materials | ||||||||||
Charcoal | – | – | – | – | – | – | – | – | ||
Coal & charcoal | 5.49 | 4.23 | [0.34, 160.66] | 0.24 | ns | – | – | – | – | |
Wood | 0.52 | 3.9 | [0.03, 9.04] | 0.63 | ns | – | – | – | – | |
Fire burned last night | ||||||||||
No | – | – | – | – | – | – | – | – | ||
Yes | 0.78 | 1.38 | [0.42, 1.47] | 0.43 | ns | – | – | – | – | |
HH owns cats | ||||||||||
No | – | – | – | – | – | – | – | – | ||
Yes | 3.38 | 4.38 | [0.16, 87.9] | 0.41 | ns | – | – | – | – | |
HH owns chickens | ||||||||||
No | – | – | – | – | – | – | – | – | ||
Yes | 0.88 | 3.53 | [0.06, 12.18] | 0.92 | ns | – | – | – | – | |
HH owns dogs | ||||||||||
No | – | – | – | – | – | – | – | – | ||
Yes | 0.11 | 3.62 | [0.01, 1.3] | 0.08 | ns | – | – | – | – | |
HH owns ducks | ||||||||||
No | – | – | – | – | – | – | – | – | ||
Yes | 0.19 | 4.51 | [0.01, 3.63] | 0.26 | ns | – | – | – | – | |
HH owns goats | ||||||||||
No | – | – | – | – | – | – | – | – | ||
Yes | 1.09 | 4.56 | [0.04, 25.09] | 0.96 | ns | – | – | – | – | |
HH owns pigs | ||||||||||
No | – | – | – | – | – | – | – | – | ||
Yes | 0.7 | 3.19 | [0.06, 9.16] | 0.76 | ns | – | – | – | – | |