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Table 6 Unadjusted and adjusted human brucellosis incidence rate ratios and 95 % confidence intervals a, 2010–2015, Abu Dhabi Emirate, United Arab by age-group, gender, nationality and, Region

From: Human brucellosis in the Emirate of Abu Dhabi, United Arab Emirates, 2010–2015

 

Unadjusted negative binomial regression

Adjusted negative binomial regression

Brucellosis

Brucellosis

Predictors

IRR

95 % CI

P Value

IRR

95 % CI

P Value

Age

 0–19 years

Ref

  

Ref

  

 20–39 years

0 · 95

0 · 44–2 · 05

0 · 905

1 · 17

0 · 63–2 · 17

0 · 625

 40–59 years

1 · 74

0 · 79–3 · 81

0 · 168

1 · 95

1 · 04–3 · 64

0 · 037

 60+ years

2 · 90

1 · 17–7 · 15

0 · 021

2 · 81

1 · 31–6 · 04

0 · 008

Gender

 Female

Ref

  

Ref

  

 Male

1 · 84

0 · 98–3 · 43

0 · 057

2 · 13

1 · 32–3 · 45

0 · 002

Nationality

 Expatriate

Ref

  

Ref

  

 Emirati National

2 · 54

1 · 45–4 · 45

0 · 001

2 · 52

1 · 55–4 · 11

<0 · 001

Region

 Western

Ref

  

Ref

  

 Abu Dhabi

3 · 04

1 · 25–7 · 38

0 · 014

2 · 09

1 · 01–4 · 35

0 · 048

 Eastern

1 · 99

0 · 81–4 · 91

0 · 133

1 · 78

0 · 87–3 · 67

0 · 116

  1. Source: HAAD e-notification system and Statistics Center Abu Dhabi
  2. Abbreviations: IRR incidence rate ratio, CI confidence interval
  3. aConfidence Intervals are calculated using negative binomial regression