Table 1 Associations between school characteristics and low in-school HPV vaccine initiation, 2016

School size

1256

  Small (11–383)

419 (33%)

175

41.8%

9.3

 < 0.001

6.1, 14.1

  Medium (384–844)

420 (33%)

105

25.0%

4.3

 < 0.001

2.8, 6.6

  Large (845–2735)

417 (33%)

30

7.2%

Ref

Special education status

1281

  Mainstream school

1178 (92%)

260

22.1%

Ref

Special education school

103 (8%)

63

61.2%

5.6

 < 0.001

3.7, 8.5

Co-educational status

1256

Co-educational school

1105 (88%)

293

26.5%

2.8

 < 0.001

1.7, 4.8

  Single-sex school

151 (12%)

17

11.3%

Ref

% Indigenous enrolment

1189

  Low (0%–2%)

452 (38%)

76

16.8%

Ref

  Medium (3%–8%)^c

343 (29%)

73

1.3

0.110

0.9, 1.9

High (9%–100%)

394 (33%)

138

35.0%

2.7

 < 0.001

1.9, 3.7

Remoteness

1281

  Major cities

751 (59%)

157

20.9%

Ref

  Inner regional

288 (22%)

91

31.6%

1.7

 < 0.001

1.3, 2.4

  Outer regional

169 (13%)

45

26.6%

1.4

0.105

0.9, 2.0

Remote and very remote

73 (6%)

30

41.1%

2.6

 < 0.001

1.6, 4.3

Attendance rate

1144

  Low (29%–87%)

451 (39%)

143

31.7%

2.6

 < 0.001

1.7, 3.7

  Medium (88%–91%)

420 (37%)

72

17.1%

1.1

0.542

0.8, 1.7

  High (92%–97%)

273 (24%)

42

15.4%

Ref

Socioeconomic disadvantage, SEIFA IRSD score

1280

Most disadvantaged (SEIFA 604–967)

428 (33%)

125

29.2%

1.8

 < 0.001

1.3, 2.5

  Less disadvantaged (SEIFA 698–1016)

428 (33%)

120

28.0%

1.7

0.001

1.3, 2.4

  Least disadvantaged (SEIFA 1017–1128)

424 (33%)

78

18.4%

Ref

Language -Background-Other-Than-English enrolment

1250

  Low (0%–6%)

455 (36%)

132

29.0%

1.3

0.072

1.0, 1.8

  Medium (7%–22%)

380 (30%)

77

20.3%

0.8

0.255

0.6, 1.2

  High (23%–100%)

415 (33%)

98

23.6%

Ref