Risk factor variables

n (%)

Crude Odds Ratio (COR)

Adjusted Odds Ratio (AOR)

OR

95% CI

p-value

OR

95% CI

p-value

Age group

10 - 19

274 (38.8)

1

-

-

1

-

-

20 - 29

154 (22.0)

1.69

1.10 - 2.57

0.016

1.77

0.84 - 3.71

0.131

30 - 39

101 (14.3)

1.60

0.98 - 2.60

0.060

1.45

0.57 - 3.70

0.428

40 - 49

69 (9.8)

1.82

1.05 - 3.17

0.032

1.76

0.66 - 4.69

0.255

50 - 59

60 (8.5)

1.71

0.95 - 3.07

0.074

2.03

0.71 - 5.79

0.181

60 or above

49 (6.9)

1.43

0.72 - 2.83

0.301

1.34

0.45 - 3.93

0.589

Occupation

Agriculture

35 (5.0)

1

-

-

1

-

-

Health Care worker

141 (19.9)

1.11

0.47 - 2.60

0.808

1.38

0.35 - 5.48

0.642

Students

310 (43.9)

1.10

0.49 - 2.46

0.815

1.05

0.14 - 7.73

0.957

Business

124 (17.5)

2.80

1.20 - 6.52

0.017

2.38

0.96 - 5.92

0.059

Fishermen

23 (3.3)

2.22

0.71 - 6.92

0.168

1.72

0.49 - 5.93

0.392

Skilled manual work

42 (5.9)

1.71

0.63 - 4.59

0.290

1.44

0.51 - 4.13

0.489

Other

32 (4.5)

0.93

0.30 - 2.81

0.305

0.92

0.25 - 3.30

0.900

Chill in the past 1 month

No

686 (97.0)

1

-

-

1

-

-

Yes

21 (3.0)

2.68

1.11 - 6.45

0.028

0.41

0.16 - 1.05

0.064

Occupation risk groups

Students

304 (43.0)

1

-

-

1

-

-

Health Care Worker

165 (23.3)

0.95

0.62 - 1.45

0.48

0.05 - 3.94

0.495

Market

238 (33.7)

1.93

1.35 - 2.78

0.73

0.11 - 4.89

0.749

District

Chakechake

70 (9.9)

1

-

-

1

-

-

Kaskazini A

173 (24.3)

1.46

075 - 2.84

0.26

1.13

0.54 - 2.34

0.737

Kati

107 (15.1)

1.77

0.88 - 3.57

0.109

1.58

0.75 - 3.33

0.221

Kusini

27 (3.8)

0.90

0.28 - 2.79

0.856

0.94

0.28 - 3.15

0.924

Magharibi B

78 (11.0)

2.19

1.04 - 4.59

0.038

1.36

0.60 - 3.08

0.456

Mjini

145 (20.6)

2.84

1.47 - 5.49

0.002

2.30

1.13 - 4.66

0.021

Mkoani

55 (7.8

3.47

1.59 - 7.56

0.002

2.82

1.26 - 6.34

0.012

Wete

52 (7.4)

1.20

0.51 - 2.80

0.674

1.19

0.50 - 2.81

0.690