Table 1.

Summary Statistics for All Participating Facilities

Characteristic	Total
Total no. of days for all facilities	356 a
Hospitalized patients for all facility days, no.
Computer-extracted b	1,472
Facility-reported c	1,353
Unique hospitalized patients for all facility days, no.
Computer-extracted	559
Facility-reported	474
Unique patients from computer-extracted and facility-reported	813
Comparison of computer-extracted and facility-reported hospitalized patient counts each facility day, no. (%)
Days counts matched	151/356 (42.4)
Count-matching days with 100% patient match d	139/151 (92.1)
Days counts matched or were discordant by 1 patient	261/356 (73.3)
Days counts matched or were discordant by up to 2 patients	301/356 (84.6)

Note. VHA, Veterans Health Administration.

^a 34 (94%) of 36 facilities reported data for all 10 days of the project; 2 facilities reported data for a portion of the 10 days of the project (see Fig. 1 for more details).

^b Data extracted by VHA automated data extraction system for daily reporting of VHA medical facility counts to the National Healthcare Safety Network.

^c Data reported by VHA medical facilities participating in this review based on manual assessment of daily counts by facility staff.

^d Patient matching at a facility was determined by comparison of patient identifiers (names, dates of birth, and last four digits in social security numbers) between the computer-extracted and facility-reported counts for each day.