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Table 2 Estimated annual immunization information system (IIS) costs by category of spending and IIS size§

From: Economics of immunization information systems in the United States: assessing costs and efficiency

  

IIS size in thousands of patient records

  

0 to 860

860 to 1,720

1,720 to 2,580

2,580 to 3,440

Over 3,440

IIS years*

N

79

12

17

10

2

 

%

66

10

14

8

2

Total Population

Mean

3,606,105

7,494,123

5,960,495

10,533,124

21,538,762

 

(StDev)

(3,150,708)

(2,363,222)

(4,422,892)

(5,424,221)

(280,246)

Child Population

Mean

298,844

654,015

507,237

911,436

2,074,273

 

(StDev)

(260,203)

(178,398)

(429,933)

(564,371)

(49,338)

Child Participation

Mean

29%

63%

72%

59%

44%

 

(StDev)

(0.54)

(0.43)

(0.29)

(0.26)

(0.14)

Non Labor Cost

      

   Development

Mean

285,509

142,031

163,740

291,374

0

 

(StDev)

(578,487)

(286,985)

(337,863)

(481,137)

0

   Operations

Mean

274,531

696,142

596,064

679,860

454,966

 

(StDev)

(769,412)

(541,044)

(923,378)

(1,029,998)

(124,004)

   Total Non labor

Mean

560,040

838,174

759,804

971,233

366,191

 

(StDev)

(1,039,098)

(629,139)

(1,098,955)

(1,192,329)

(301,553)

Labor Costs

      

   Development

Mean

248,554

100,941

63,814

131,161

102,039

 

(StDev)

(623,388)

(159,685)

(135,881)

(370,508)

(204,079)

   Operations

Mean

110,827

419,317

554,676

480,370

1,019,093

 

(StDev)

(219,691)

(559,807)

(337,150)

(534,342)

(618,350)

   Total Labor

Mean

359,381

520,258

618,490

611,531

1,121,132

 

(StDev)

(600,991)

(489,775)

(304,919)

(601,790)

(414,271)

Overall Costs

      

   Development

Mean

534,063

242,972

227,554

422,534

102,039

 

(StDev)

(813,133)

(394,978)

(379,468)

(700,865)

(204,079)

   Operations

Mean

385,358

1,115,459

1,150,740

1,160,230

1,019,093

 

(StDev)

(850,668)

(914,221)

(1,091,372)

(1,234,443)

(618,350)

   Total

Mean

919,421

1,358,431

1,378,294

1,582,764

1,487,324

 

(StDev)

(1,121,652)

(900,971)

(1,237,504)

(1,592,114)

(715,824)

  1. *IIS years connotes an observation for each of the 24 sampled IIS once per year over a five year period; therefore the sample for our analysis consisted of 120 data entries. Each entry refers to the particular observation of a specific IIS in a given year, henceforth an IIS-year
  2. Dollars per IIS year inflated to 2002 dollars
  3. § Cut points are based on 5 equal intervals between 0 and 3.6 million patient records