Skip to main content

Table 2 Prevalence of antenatal vaccine coverage among Links2HealthierBubs cohort, 2012–2017

From: Inequity of antenatal influenza and pertussis vaccine coverage in Australia: the Links2HealthierBubs record linkage cohort study, 2012–2017

Characteristics

N (%)

Total

 

a) IIV (any)

69 670 / 441 747 (16)

PR (95% CI)

aPR (95% CI)

Other Australians

48 196/320 008 (15)

ref

ref

First Nations

4 073/28 962 (14)

0.93 (0.91–0.95)

0.98 (0.96–0.99)

CALD

17 401/92 777 (19)

1.24 (1.22–1.25)

1.21 (1.20–1.23)

Age at infant birth < 20years

2 314/17 137 (14)

ref

ref

20–34 years

53 013/330 135 (16)

1.23 (1.17–1.28)

1.26 (1.20–1.32)

≥ 35 years

14 343/94 475 (15)

1.15 (1.09–1.20)

1.29 (1.23–1.36)

No 1st trimester antenatal care

 

ref

ref

Antenatal care in 1st trimester

50 283/283 670 (18)

1.44 (1.42–1.46)

1.50 (1.47–1.53)

Multiparous

 

ref

ref

Primiparous

39 278/ 198 348 (20)

1.25 (1.24–1.27)

1.26 (0.24–1.28)

Private hospital birth

 

ref

ref

Public hospital birth*

22 362/174 049 (13)

0.68 (0.66–0.68)

0.81 (0.80–0.83)

Northern Territory

1 976/18 433 (11)

ref

ref

Queensland

40 918/271 737 (15)

1.38 (1.33–1.44)

1.46 (1.41–1.52)

Western Australia

26 734/151 573 (18)

1.64 (1.58–1.71)

1.75 (1.68–1.82)

Year of infant birth 2012

2 008/74 797 (3)

ref

ref

2013

3 772/74 713 (5)

1.87 (1.79–1.96)

1.63 (1.51–1.77)

2014

3 654/72 791 (5)

1.81 (1.72–1.89)

1.07 (0.98–1.16)

2015

10 896/71 179 (15)

5.54 (5.32–5.76)

9.14 (8.56–9.76)

2016

22 092/75 854 (29)

10.49 (10.09–10.90)

18.90 (17.74–20.15)

2017

27 206/72 409 (38)

13.51 (13.02–14.06)

24.22 (22.73–25.81)

Not remote

 

ref

ref

Remote/Very remote

3 139/22 882 (14)

0.88 (0.85–0.90)

0.89 (0.86–0.91)

SEIFA 1 n = 49 376

6 816 (14)

ref

ref

SEIFA 2 n = 44 082

6 028 (14)

0.99 (0.95–1.03)

0.94 (0.90–0.97)

SEIFA 3 n = 41 662

6 223 (15)

1.10 (1.06–1.14)

0.96 (0.93-1.00)

SEIFA 4 n = 42 891

6 157 (14)

1.05 (1.01–1.09)

0.97 (0.93-1.00)

SEIFA 5 n = 41 002

6 382 (16)

1.15 (1.11–1.19)

0.98 (0.95–1.01)

SEIFA 6 n = 45 341

7 469 (16)

1.23 (1.19–1.28)

1.05 (1.02–1.09)

SEIFA 7 n = 47 734

8 151 (17)

1.29 (1.24–1.33)

1.07 (1.04–110)

SEIFA 8 n = 44 852

7 171 (16)

1.19 (1.15–1.23)

1.01 (0.98–1.04)

SEIFA 9 n = 42 549

7 597 (18)

1.36 (1.31–1.41)

1.10 (1.07–1.14)

SEIFA10 n = 40 821

7 372 (18)

1.38 (1.33–1.43)

1.17 (1.13–1.21)

b) dTpa(any)

n = 125 023 / 292 126 (43)

PR (95% CI)

PR (95% CI)

Other Australians

90 726/207 560 (44)

ref

ref

First Nations

6 029/19 414 (31)

0.70 (0.69–0.71)

0.80 (0.79–0.82)

CALD

28 268/65 152 (43)

0.98 (0.97–0.98)

0.97 (0.96–0.98)

Age at infant birth < 20years

4 019/11 085 (36)

ref

ref

20–34 years

96 362/220 335 (44)

1.20 (1.17–1.22)

1.11 (1.09–1.14)

≥ 35 years

24 642/60 706 (41)

1.16 (1.13–1.19)

1.07 (1.04–1.09)

No 1st trimester antenatal care

 

ref

ref

Antenatal care in 1st trimester

90 186/194 414 (46)

1.19 (1.18–1.20)

1.15 (1.14–1.16)

Multiparous

 

ref

ref

Primiparous

71 593/143 236 (50)

1.24 (1.23–1.25)

1.25 (1.24–1.26)

Other birth facility

 

ref

ref

Public hospital birth*

55 763/115 949 (48)

0.90 (0.89–0.91)

0.97 (0.96–0.98)

Northern Territory

2 358/18 433 (13)

ref

ref

Queensland

88 765/271 737 (33)

2.54 (2.46–2.62)

2.44 (2.36–2.52)

Western Australia

33 811/151 573 (22)

1.74 (1.68–1.80)

1.67 (1.62–1.73)

Year of infant birth 2015

23 884/71 179 (34)

ref

ref

2016

48 070/75 854 (63)

1.91 (1.89–1.93)

1.37 (1.36–1.38)

2017

51 699/72 409 (71)

2.15 (2.13–2.18)

2.22 (1.12–4.72)

Not remote

 

ref

ref

Remote/Very remote

4 520/14 779 (31)

0.75 (0.73–0.76)

0.75 (0.74–0.77)

SEIFA 1 n = 31 925

11 203 (35)

ref

ref

SEIFA 2 n = 28 264

11 216 (40)

1.14 (1.12–1.16)

1.09 (1.07–1.10)

SEIFA 3 n = 27 449

11 378 (41)

1.19 (1.17–1.21)

1.12 (1.10–1.14)

SEIFA 4 n = 27 731

11 671 (42)

1.21 (1.19–1.23)

1.16 (1.14–1.18)

SEIFA 5 n = 2 ,329

12 117 (44)

1.25 (1.23–1.27)

1.20 (1.18–1.22)

SEIFA 6 n = 30 346

13 343 (44)

1.24 (1.22–1.25)

1.21 (1.19–1.23)

SEIFA 7 n = 32 262

14 691 (46)

1.28 (1.26–1.30)

1.22 (1.20–1.24)

SEIFA 8 n = 29 811

13 474 (45)

1.29 (1.27–1.31)

1.20 (1.18–1.22)

SEIFA 9 n = 28 361

13 078 (46)

1.30 (1.28–1.32)

1.21 (1.19–1.23)

SEIFA 10 n = 27 351

12 406 (45)

1.28 (1.26–1.30)

1.24 (1.22–1.26)

c) Both(IIV and dTpa)

n = 53 861/ 292 126 (18)

PR* (95% CI)

PR* (95% CI)

Other Australians

37 967/207 560 (18)

ref

ref

First Nations

2 450/19 414 (13)

0.69 (0.67–0.71)

0.81 (0.78–0.84)

CALD

13 444/65 152 (21)

1.16 (1.10–1.13)

1.07 (1.06–1.09)

Age at infant birth < 20years

1 620/11 085 (15)

ref

ref

20–34 years

41 458/220 335 (19)

1.27 (1.22–1.32)

1.07 (1.02–1.13)

≥ 35 years

10 783/60 706 (18)

1.28 (1.23–1.34)

1.03 (0.97–1.08)

No 1st trimester antenatal care

 

ref

ref

Antenatal care in 1st trimester

39 727/194 414 (20)

1.30 (1.28–1.32)

1.21 (1.18–1.23)

Multiparous

 

ref

ref

Primiparous

32 094/143 236 (22)

1.33 (1.32–1.35)

1.34 (1.32–1.37)

Other birth facility

 

ref

ref

Public hospital birth*

19 202/115 949 (17)

0.63 (0.62–0.64)

0.68 (0.66–0.69)

Northern Territory

700/18 433 (4)

ref

ref

Queensland

35 658/271 737 (13)

3.40 (3.18–3.62)

3.36 (3.14–3.58)

Western Australia

17 469/151 573 (12)

2.97 (2.78–3.17)

2.95 (2.76–3.15)

Year of infant birth 2015

8 560/71 179 (12)

ref

ref

2016

20 129/75 854 (27)

2.21 (2.17–2.26)

2.20 (2.16–2.25)

2017

25 051/72 409 (35)

2.88 (2.83–2.94)

2.86 (2.80–2.91)

Not remote

 

ref

ref

Remote/Very remote

1 969/14 779 (13)

0.75 (0.72–0.78)

0.77 (0.74–0.79)

SEIFA 1 n = 31 925

4 817 (15)

ref

ref

SEIFA 2 n = 28 264

4 512 (16)

1.07 (1.04–1.11)

0.97 (0.94–1.01)

SEIFA 3 n = 27 449

4 774 (17)

1.15 (1.11–1.19)

1.01 (0.98–1.05)

SEIFA 4 n = 27 731

4 700 (17)

1.14 (1.11–1.18)

1.01 (0.98–1.05)

SEIFA 5 n = 27 329

5 035 (18)

1.20 (1.17–1.24)

1.04 (1.01–1.08)

SEIFA 6 n = 30 346

5 852 (19)

1.26 (1.23–1.30)

1.11 (1.07–1.15)

SEIFA 7 n = 32 262

6 467 (20)

1.33 (1.29–1.37)

1.12 (1.09–1.16)

SEIFA 8 n = 29 811

5 601 (19)

1.25 (1.21–1.29)

1.05 (1.02–1.09)

SEIFA 9 n = 28 361

6 054 (21)

1.40 (1.36–1.45)

1.16 (1.22–1.20)

SEIFA 10 n = 27 351

5 855 (21)

1.44 (1.40–1.48)

1.23 (1.19–1.27)

  1. Abbreviations: PR, prevalence ratio; IIV, inactivated influenza vaccine; CALD, Culturally and linguistically diverse; SEIFA, Socio-Economic Indexes for Areas; dTpa, diphtheria-Tetanus-acellular pertussis vaccine
  2. * Qld data only
  3. †Data restricted to >2014 in line with recommendations for dTpa in pregnancy