Table 6 Predictors of NAP service contacts for adults who had a cochlear implant during 2017 to 2021, in New South Wales, Australia

Sex

 Male

Ref

Ref

Ref

 Female

0.76 (0.64, 0.90) ^*

-

0.73 (0.63, 0.84) ^**

0.61 (0.37, 1.00) ^*

Place of residence

 Urban

Ref

Ref

 Rural

0.85 (0.69, 1.03)

-

1.13 (0.97, 1.33)

-

Socio-economic index

 1 (most disadvantaged)

1.69 (1.30, 2.20) ^**

1.42 (1.10, 1.84) ^*

1.14 (0.91, 1.43)

 2

1.50 (1.17, 1.94) ^*

1.22 (0.95, 1.55)

1.31 (1.06, 1.62) ^*

-

 3

1.96 (1.51, 2.56) ^**

1.39 (1.07, 1.80) ^*

1.14 (0.92, 1.41)

-

 4

1.00 (0.75, 1.34

0.96 (0.72, 1.27)

0.90 (0.72, 1.13)

-

 5 (least disadvantaged)

Ref

Ref

Ref

Number of Charlson comorbidities

 None

Ref

Ref

Ref

 ≥ 1

2.23 (1.62, 3.07) ^**

1.71 (1.26, 2.33) ^**

1.38 (1.14, 1.69) ^**

0.92 (0.48, 1.75)

Mental health disorder diagnosis

 No

Ref

Ref

 Yes

2.06 (1.35, 3.13) ^*

1.89 (1.25, 2.85) ^*

-

-

Number of implants

 1

Ref

Ref

 ≥ 2

1.44 (1.21, 1.72) ^**

-

1.19 (1.02, 1.39) ^*

-

Number of implant removals

 No removal

-

-

Ref

Ref

 ≥ 1

-

-

1.39 (1.01, 1.93) ^*

2.43 (1.17, 5.02) ^*

Mastoid and temporal bone process

 Excision procedure

-

-

Ref

Ref

 Other procedures^a

-

-

2.76 (1.25, 6.07) ^*

2.92 (1.33, 6.40) ^*

Number of admissions

1.03 (1.02, 1.04) ^**

1.03 (1.02, 1.04) ^**

1.03 (1.02, 1.04) ^**

1.03 (1.00, 1.06) ^*

Total hospital LOS (days)

1.15 (1.08, 1.23) ^**

-

-

-

Hospital type

 Public

Ref

Ref

Ref

 Private

0.68 (0.57, 0.81) ^**

0.63 (0.53, 0.75) ^**

0.73 (0.63, 0.86) ^**

-