Table 1 Female mosquitoes collected at different heights and adjusted analysis for covariates

Anopheles gambiae

Hut on the ground

1259

Reference

Raised hut with open ground storey

655

0.47 (0.42–0.53)

− 53% (− 47 to − 58)

 < 0.001

Reference

Raised hut with air-permeable walls on the ground storey

981

0.76 (0.64–0.91)

− 24% (− 9 to − 36)

0.002

1.63 (1.36 to 1.96)

63% (36 to 96)

 < 0.001

Raised hut with solid walls on the ground storey

873

0.69 (0.63–0.76)

− 31% (− 24 to − 37)

 < 0.001

1.45 (1.36 to 1.56)

45% (36 to 56)

 < 0.001

Mansonia spp.

Hut on the ground

8535

Reference

Raised hut with open ground storey

4145

0.48 (0.41–0.57)

− 52% (− 43 to − 59)

 < 0.001

Reference

Raised hut with air-permeable walls on the ground storey

5021

0.62 (0.54–0.72)

− 38% (− 28 to − 46)

 < 0.001

1.31 (1.27 to 1.36)

31% (27 to 36)

 < 0.001

Raised hut with solid walls on the ground storey

4281

0.54 (0.49–0.59)

− 46% (− 41 to − 51)

 < 0.001

1.14 (1.07 to 1.21)

14% (7 to 21)

 < 0.001

Culex spp.

Hut on the ground

610

Reference

Raised hut with open ground storey

598

0.92 (0.83–1.03)

− 8% (− 17 to 3)

0.15

Reference

Raised hut with air-permeable walls on the ground storey

645

1.06 (0.87–1.30)

6% (− 13 to 30)

0.55

1.13 (0.95 to 1.36)

13% (− 5 to 36)

0.169

Raised hut with solid walls on the ground storey

588

0.89 (0.85–0.93)

− 11% (− 7 to − 15)

 < 0.001

0.34 (0.93 to 0.80)

− 66% (− 20 to − 7)

0.343

All female mosquitoes

Hut on the ground

10,478

Reference

Raised hut with open ground storey

5451

0.52 (0.45–0.59)

− 48% (− 41 to − 55)

 < 0.001

Reference

 < 0.001

Raised hut with air-permeable walls on the ground storey

6715

0.69 (0.60–0.79)

− 31% (− 21 to − 40)

 < 0.001

1.34 (1.33 to 1.35)

34% (33 to 35)

 < 0.001

Raised hut with solid walls on the ground storey

5814

0.59 (0.55–0.64)

− 41% (− 36 to − 45)

 < 0.001

1.15 (1.10 to 1.19)

15% (10 to 19)

 < 0.001