Changes in on-time vaccination following the introduction of an electronic immunization registry, Tanzania 2016-2018: interrupted time-series analysis

Table 1 Characteristics of health facilities using the electronic immunization registry (EIR) in Tanzania, by region^a

Characteristics	Arusha	Kilimanjaro	Tanga	All Regions
Number of districts	6	6	8	20
Number of facilities	306	357	355	1006
Number of children^b	88,492	53,068	110,255	251,815
Date range of EIR records (including retrospectively entered data)	January 2015-September 2018	January 2015-September 2018	January 2015-September 2018	NA
Date range of EIR introduction	June 2016-March 2017	December 2017-February 2018	July 2017-August 2017	NA
Primary power source, n(col%)^c
Grid	102 (37%)	226 (79%)	–	328 (37%)
Solar	87 (31%)	22 (8%)	–	109 (12%)
None	11 (4%)	–	–	11 (1%)
Ownership type, n (col %)^d
Private – Faith-based organization	90 (32%)	70 (25%)	37 (11%)	197 (22%)
Public - Government	181 (65%)	201 (71%)	279 (86%)	661 (75%)
Facility type, n (col %)^e
Dispensary/health post	218 (78%)	226 (79%)	280 (87%)	724 (82%)
Health center	47 (17%)	45 (16%)	36 (11%)	128 (14%)
Hospital	13 (5%)	14 (5%)	8 (2%)	34 (4%)

^aAmongst those facilities that input at least one record into the EIR
^bChildren under 2 years as of the time the data were pulled (September 2018)
^cFacilities missing data on ownership type: in Arusha (n = 7), Kilimanjaro (n = 14), and Tanga (n = 8)
^dFacilities missing data on primary power source: in Arusha (n = 78), Kilimanjaro (n = 37), and Tanga (n = 327)
^eFacilities missing data on facility type: in Arusha (n = 0), Kilimanjaro (n = 14), and Tanga (n = 36)

ISSN: 1472-6963