Improving the Measurement of Surgical Site Infection Risk Stratification/Outcome Detection

Exhibit 28. Count of missing values (with percentage)

Procedure postop_
hematocrit
postop_
hemoglob
preop_
albumin
preop_
albumin
preop_
hemoglob
DH          
HE 429 (46.4%) 429 (46.4%) 489 (52.9%) 340 (36.8%) 345 (37.3%)
TH 47 (17.3%) 47 (17.3%) 127 (46.9%) 70 (25.8%) 70 (25.8%)
TK 31 (13.2%) 32 (13.7%) 99 (42.3%) 41 (17.5%) 41 (17.5%)
IH          
AP 3923 (64%) 3949 (64.5%) 2784 (45.4%) 1568 (25.6%) 1672 (27.3%)
CA 80 (4.4%) 81 (4.5%) 418 (23.2%) 123 (6.8%) 128 (7.1%)
HE 1690 (77.8%) 1703 (78.4%) 2173 (100%) 1424 (65.5%) 1682 (77.4%)
TH 85 (2.9%) 514 (17.7%) 2478 (85.2%) 1249 (42.9%) 1334 (45.8%)
TK 615 (6.9%) 1817 (20.3%) 7697 (86.2%) 4511 (50.5%) 4549 (50.9%)
VA          
CA 78 (100%) 78 (100%) 1 (1.3%) 78 (100%) 78 (100%)
HE 202 (85.2%) 237 (100%) 90 (38%) 22 (9.3%) 22 (9.3%)
TH  (0%) 90 (100%) 49 (54.4%) 1 (1.1%) 1 (1.1%)
TK 1 (0.6%) 163 (100%) 95 (58.3%) 3 (1.8%) 3 (1.8%)
VAIL          
HE 388 (92.8%) 390 (93.3%) 418 (100%) 337 (80.6%) 336 (80.4%)
TH 13 (8.2%) 12 (7.5%) 159 (100%) 107 (67.3%) 107 (67.3%)
TK 55 (10.3%) 55 (10.3%) 534 (100%) 419 (78.5%) 420 (78.7%)

DH = Denver Health; IH = Intermountain Healthcare; VA =Salt Lake City VA Vail = Vail Valley Medical Center; AP = Appendectomy; CA = CABG; HE = Herniorrhaphy; TH = Total Hip Arthroplasty; TK = Total Knee Arthroplasty

Return to Document

Page last reviewed December 2012
Page originally created December 2012
Internet Citation: Exhibit 28. Count of missing values (with percentage). Content last reviewed December 2012. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/research/findings/final-reports/ssi/ssiexh28.html