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mimic

the

rate

nationwide

for

children

under

age

three.

It

also

assumes

that

the

one

publicly

funded

patient

who

pursues

antiviral

therapy

will mitigate

hearing

loss

to

an

extent

that

s/

he

will

only

require

hearing

aids

rather

than

bilateral

cochlear

implants.

The model

shows

a

large

net

benefit.

The

next

two

models

that

appear

in

Table

1

illustrate

the

difference

if,

under

the

same

set

of

assumptions,

no

cochlear

implants

are

avoided

or

only

a

single

implant

(unilateral)

is

avoided.

In

the case where no cochlear

implants are avoided,

there

is a net cost

to

the government, and

in

the case of a

single cochlear

implant

avoided,

the

costs

and

benefits

essentially

cancel

each

other

out.

The final model considers how costs and benefits might differ

if

the

number

of

publicly

insured

infants

increases

as

individuals

take

advantage

of

their

public

insurance

eligibility

to

avoid

tax

penalties

for

the uninsured or as

increased numbers of

individuals

are eligible

for public

insurance under

currently debated Medicaid

expansion

in Utah.

This model

considers

the

extreme

scenario

of

80%

of

infants

on

public

insurance

(using

the

high

end

of

the

Department

of

Health

data

on

current

eligibility).

All

other

assumptions

follow

the

base

model.

While

this

increases

dramatically

the

public

dollars

paid

for

CMV

screenings,

it

only

increases

the

number

of

CMV-positive

children

that

take VGC

on

public

insurance

from

one

to

two

children

per

year.

At most

it

might mean

that

two

children

avoid

cochlear

implantation

each

year

rather

than one. The model above calculates

the benefit

if one

of

those

two

children would

have

had

a

single

CI

and

the

other

would

have

been

bilateral

and

both

are

able

to

avoid

cochlear

implantation.

Overall,

this

model

illustrates

that

the

effect

of

increased

public

insurance

is

not

as

significant

a

factor

in

the

calculation

as

the

potential

cost–savings

if VGC

treatment

proves

effective.

In

sum,

we

found

the

implementation

of

Utah’s

hearing-

targeted

CMV

screening

program

to

have

a

net

public

benefit

in

three

of

the

four

cost–benefit

scenarios we

investigated. Only

in

the

instance where

no

cochlear

implant

is

avoided

in

a

year

does

the

program

show

a

net

public

cost,

albeit

a modest

one.

4. Discussion

The

enormous

societal

costs

of

congenital

CMV

must

be

balanced against

the

costs

incurred

from any early CMV

screening

program.

A

targeted

hearing

early

CMV

testing

approach was

a

compromise

to

identify

infants

at

greatest

risk

to

develop

progressive

SNHL.

A

targeted

approach

requires

CMV

testing

of

a

small

number

of

infants

per

year

as

compared

to

testing

thousands

of

infants

if

a

universal

program was

implemented.

Williams

et

al.,

estimated

the

cost of

a

targeted CMV

screening

program within

the United Kingdom

[12]

. They utilized data

from

the

national

hearing

screening

program

in

England

and

from

a

recently

completed

study

using

saliva

swabs.

The

costs

of

screening

time,

PCR

testing,

and

treatment were

calculated.

They

estimated

that

the

cost

for

this

approach would

be

$10,693

per

child

and

concluded

this

amount would be

favorable

compared

to

other

screening

programs.

The

costs

per

child

determined

from

our

analysis

would

be

much

less

than

that

from

the Williams

et

al.,

study

although

a

direct

comparison

is

difficult

given

the

different

health

care

systems. Much

of

the

cost

from

screening

and

treatment

of

the

congenitally

infected

hearing

impaired

infants

will

come

from

antiviral

therapy

and

from

cochlear

implantation.

Eighteen

months

since

implementation

of

this

approach,

eight

of

fourteen

infants

diagnosed

with

CMV

have

undergone

antiviral

therapy.

Kimberlin

et

al.,

reported

one

child who

underwent

6 months

of

VGC

therapy

requiring

cochlear

implantation

compared

to

three

children

who

underwent

6

week

VGC

therapy

requiring

this

surgical procedure at

the 12 month

follow up period

[10]

. At

the 24

month

follow up period,

four children undergoing 6 months of VGC

therapy

required

cochlear

implantation

compared

to

six

children

requiring

the

same procedure undergoing 6 weeks of VGC

therapy.

It may be

that our cost–benefit estimates are overly generous as

only

a

minority

of

children

who

would

qualify

for

cochlear

implants

in

the

United

States

actually

receive

them

[10]

.

This

potential over-estimation however,

is

likely offset by

the

fact

that

we

did

not

include

the

familial

and

educational

benefits

of

early

intervention

that will

be

attributable

to

the Utah

law. Nor

did we

account

for

the

benefits

of

the

preventive

educational

program-

ming mandated

by

the

legislation.

Both

of

these

omissions make

our

analyses

conservative.

5. Conclusion

Our

results

support

a

possible

societal

savings

from

early

identification

and

treatment

of

CMV.

This

analysis

considers

only

the

impact

of

the

screening

portion

of

the

program.

Overall,

the

results

suggest

that

there

is

reason

for

optimism

about

the

return

on

investment

to

the

government

associated with

the Utah

law.

Table

1

Cost–benefit

figures

of mandatory

CMV

testing

for

infants who

fail

two

newborn

hearing

screenings

using

different model

assumptions.

Baseline model

a

No

cochlear

implants

avoided

One

cochlear

implant

avoided

80%

of

newborns

on

public

insurance

2014

2015

2014

2015

2014

2015

2014

2015

Costs

Program

setup

$4,000

$4000

$4000

$4,000

Fixed

administrative

$30,800

$30,800

$30,800

$30,800

$30,800

$30,800

$30,800

$30,800

Screenings

$7,260

$7,260

$7260

$7260

$7260

$7,260

$7,260

$7,260

Antiviral

treatment

and monitoring

tests

$4,839

$4,839

$4839

$4839

$4839

$4,839

$9,678

$9,678

Total

costs

$46,899

$42,899

$46,899

$42,899

$46,899

$42,899

$57,348

$53,348

Benefits

Treatment

savings

$93,600

$93,600

$0

$0

$46,800

$46,800

$140,400

$140,400

Benefits–costs

$46,691

$50,701

($46,899)

($42,899)

($99)

$3,901

$83,052

$87,052

a

The

base model

chooses

values

near

the middle

of

the

ranges

provided

for

the

costs/benefits

for which we

have

ranges

and

uses

precise

estimates where

available.

Program setup & fixed administrative costs are

those outlined

in

the fiscal note

incurred directly by

the Department of Health, screening costs are

the costs

to

the government

through Medicaid/CHIP

for

the proportion of screening costs expected

to be publicly

funded, and antiviral

treatment and monitoring

tests are

likewise

those

incurred only by

the

patients who

are

publicly

funded

and

elect

to

undergo

those

procedures.

This model

assumes

one

child

covered

by Medicaid/CHIP

and

diagnosed with

CMV-related

sensorineural

hearing

loss

each

year,

that

child

takes

antivirals,

and

s/he would

have

needed

cochlear

implants without

the

intervention.

A.

Bergevin

et al.

/

International

Journal

of

Pediatric Otorhinolaryngology

79

(2015)

2090–2093

117