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Table 1 Mortality rate difference and 95% confidence interval (CI) for 1× deltamethrin with and without pre-exposure to PBO

From: Intensity and mechanisms of deltamethrin and permethrin resistance in Anopheles gambiae s.l. populations in southern Benin

Site

Insecticide

Dead

Alive

Total

Mortality

rate (%)

Rate

difference*

95% CI

Adjohoun

PBO + 1× Deltamethrin

59

05

64

92

48

36–60

1× Deltamethrin

40

51

91

44

Allada

PBO + 1× Deltamethrin

88

01

89

99

55

45–65

1× Deltamethrin

42

54

96

44

Bohicon

PBO + 1× Deltamethrin

88

07

95

93

81

73–89

1× Deltamethrin

11

83

94

12

Cotonou

PBO + 1× Deltamethrin

58

32

90

64

48

35–61

1× Deltamethrin

14

71

85

16

Porto-Novo

PBO + 1× Deltamethrin

77

11

88

88

73

63–81

1× Deltamethrin

14

80

94

15

All sites

PBO + 1× Deltamethrin

370

56

426

87

61

56–66

1× Deltamethrin

121

339

460

26

  1. *Differences in mortality rates between 1× deltamethrin and PBO + 1× deltamethrin were significant (p < 0.001) at all sites using the χ2 test