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Table 6 Zero-inflated negative binomial model for association of social deprivation with cancer mortality

From: Measuring health-related social deprivation in small areas: development of an index and examination of its association with cancer mortality

 

Logit model (likelihood of having zero death count)

Negative binomial model (relative risk of cancer mortality)

Adjusted OR

95% confidence interval

IRRa

95% confidence interval

Year (2011 as reference)

 2012

1.87

(0.48, 7.27)

1.01

(0.90, 1.14)

 2013

3.30

(0.91, 12.00)

1.03

(0.92, 1.16)

 2014

3.43

(0.94, 12.43)

1.08

(0.96, 1.22)

 2015

1.74

(0.44, 6.91)

1.02

(0.91, 1.15)

 2016

1.73

(0.41, 7.34)

0.99

(0.88, 1.12)

Social deprivation level (Group 1 (least deprived) as reference)

 Group 2

0.30

(0.05, 1.88)

1.05

(0.95, 1.16)

 Group 3

-b

-

1.34*

(1.21, 1.48)

 Group 4 (most deprived)

1.25

(0.35, 4.43)

1.40*

(1.27, 1.55)

Interaction between social deprivation level and year

 2012xGroup 2

-b

-

1.02

(0.89, 1.17)

 2012xGroup 3

-b

-

0.98

(0.86, 1.13)

 2012xGroup 4

0.62

(0.14, 2.68)

1.00

(0.87, 1.15)

 2013xGroup 2

0.06

(0, 5.61)

1.05

(0.91, 1.21)

 2013xGroup 3

-b

-

0.99

(0.86, 1.13)

 2013xGroup 4

0.39

(0.10, 1.58)

0.95

(0.83, 1.10)

 2014xGroup 2

0.10

(0, 3.22)

0.98

(0.85, 1.12)

 2014xGroup 3

-b

-

0.97

(0.84, 1.12)

 2014xGroup 4

0.51

(0.13, 2.05)

0.91

(0.79, 1.05)

 2015xGroup 2

0.00

-

1.11

(0.97, 1.27)

 2015xGroup 3

-b

-

1.04

(0.90, 1.19)

 2015xGroup 4

1.07

(0.25, 4.61)

1.03

(0.90, 1.19)

 2016xGroup 2

-b

-

1.10

(0.95, 1.26)

 2016xGroup 3

-b

-

1.14*

(1.00, 1.32)

 2016xGroup 4

1.08

(0.24, 4.99)

1.04

(0.91, 1.20)

Population (logarithm)

1.10

(0.85, 1.43)

2.71*

(2.67, 2.76)

Age group (0–4 years as reference)

 5–9 years

0.80

(0.06, 11.11)

0.74

(0.45, 1.22)

 10–14 years

0.18

(0.01, 4.44)

3.84*

(2.65, 5.55)

 15–19 years

0.12

(0, 96.14)

0.98

(0.63, 1.50)

 20–24 years

0.14

(0, 24.45)

0.96

(0.64, 1.45)

 25–29 years

0.60

(0.07, 5.16)

1.47

(1.00, 2.17)

 30–34 years

0.56

(0.09, 3.50)

3.23*

(2.27, 4.60)

 35–39 years

0.44

(0.08, 2.54)

5.76*

(4.09, 8.09)

 40–44 years

0.39

(0.07, 2.17)

12.53*

(8.96, 17.51)

 45–49 years

0.32

(0.06, 1.68)

22.20*

(15.93, 30.93)

 50–54 years

0.30

(0.06, 1.58)

35.00*

(25.15, 48.71)

 55–59 years

0.19*

(0.04, 0.98)

51.38*

(36.95, 71.45)

 60–64 years

0.17*

(0.03, 0.92)

74.38*

(53.49, 103.42)

 65–69 years

0.15*

(0.03, 0.79)

89.66*

(64.50, 124.65)

 70–74 years

0.19*

(0.04, 0.99)

167.18*

(120.24, 232.43)

 75–79 years

0.16*

(0.03, 0.82)

244.87*

(176.18, 340.35)

 80–84 years

0.11*

(0.02, 0.56)

322.68*

(232.17, 448.47)

 85 + years

0.11*

(0.02, 0.58)

394.70*

(284, 548.55)

Sex (male as reference)

0.56*

(0.40, 0.77)

0.59*

(0.58, 0.61)

  1. *P < 0.05
  2. aIRR Incidence relative risk
  3. bThese cells were omitted due to large standard error