Background
Methods
Setting
Study design
MRSA screening protocol
Data collection
Analytic approach
Matching analysis
Multivariate regression model analyses
Cost and LOS estimation
Results
Matching analysis
Female (N) | LOS (days) | Full Cost ($) | Full Cost per Diem ($) | Age (Years) | |||
---|---|---|---|---|---|---|---|
HAC | CASE | 152 | 50 | 47.07 (49.9) | 87,169.36 (124,352.98) | 2045.00 (1573.69) | 68.09 (18.1) |
MATCH | 1510 | 490 | 14.19 (26.1) | 29,622.79 (52,720.39) | 2846.78 (2853.81) | 67.82 (18.2) | |
p value | <.0001 | <.0001 | <.0001 | 0.7677 | |||
HAI | CASE | 37 | 16 | 56.08 (59.8) | 147,457.83 (136,521.87) | 3094.71 (2138.34) | 55.70 (20.5) |
MATCH | 370 | 160 | 27.53 (41.2) | 81,255.88 (154,957.10) | 2923.51 (1852.18) | 55.31 (20.4) | |
p value | <.0001 | <.0001 | 0.9212 | 0.9679 | |||
CAC | CASE | 44 | 20 | 11.07 (15.0) | 30,257.82 (57,664.19) | 2260.04 (1471.44) | 53.95 (19.7) |
MATCH | 440 | 200 | 11.52 (27.8) | 25,315.65 (68,942.20) | 2160.62 (1620.05) | 53.98 (19.2) | |
p value | 0.0079 | 0.0134 | 0.5974 | 0.9734 | |||
CAI | CASE | 23 | 12 | 24.17 (24.5) | 66,334.35 (84,819.14) | 2234.48 (1051.56) | 53.91 (17.9) |
MATCH | 230 | 120 | 10.44 (20.4) | 27,859.56 (39,070.72) | 3716.91 (3196.77) | 53.70 (16.6) | |
p value | <.0001 | 0.0274 | 0.0092 | 0.9988 | |||
CAC-A | CASE | 187 | 72 | 11.36 (21.4) | 26,516.53 (43,379.84) | 2842.90 (2447.30) | 50.72 (19.1) |
MATCH | 1860 | 710 | 9.22 (21.2) | 17,748.70 (37,594.47) | 2601.54 (2327.25) | 50.78 (18.7) | |
p value | <.0001 | 0.0001 | 0.069 | 0.8602 | |||
CAI-A | CASE | 84 | 28 | 16.75 (22.6) | 36,933.50 (56,716.14) | 2556.93 (2311.21) | 50.55 (16.4) |
MATCH | 840 | 280 | 9.29 (18.3) | 17,282.27 (24,006.20) | 2553.57 (2172.21) | 50.43 (16.6) | |
p value | <.0001 | <.0001 | 0.8968 | 0.9131 |
Cost | LOS | |||
---|---|---|---|---|
Coefficient (St. Err.) | p value | Coefficient (St. Err.) | p value | |
Intercept | 8.4427 (0.0041) | <.0001 | 0.8570 (0.0047) | <.0001 |
Colonized | 0.3888 (0.1083) | 0.0003 | 0.3391 (0.1312) | 0.0097 |
Infected | 0.6698 (0.1157) | <.0001 | 0.7177 (0.1403) | <.0001 |
Hospital-Acquired | 0.7216 (0.1214) | <.0001 | 1.0209 (0.1472) | <.0001 |
Admission | 0.0684 (0.1156) | 0.5539 | 0.0752 (0.1398) | 0.5906 |
Charlson | 0.0567 (0.0005) | <.0001 | 0.0807 (0.0006) | <.0001 |
Age | 0.0121 (0.0001) | <.0001 | 0.0151 (0.0001) | <.0001 |
Gender | −0.2050 (0.0025) | <.0001 | −0.2214 (0.0031) | <.0001 |
Procedure Count | 0.1967 (0.0006) | <.0001 | 0.0762 (0.0006) | <.0001 |
Multivariate regression models
GLM Regression | Matched | |||
---|---|---|---|---|
Case | Incr. | Case | Incr. | |
HAC | 47,251 (29322–76,148) | 31,686 (14169–60,158) | 87,169 (67241–107,098) | 57,547 (40279–74,814) |
HAI | 62,581 (38278–102,322) | 47,016 (23125–86,332) | 147,458 (101939–192,976) | 66,202 (36524–95,880) |
CAC | 22,962 (18077–29,170) | 7397 (2924–13,180) | 30,258 (12726–47,789) | 4942 (− 6130–16,014) |
CAI | 30,412 (23598–39,197) | 14,847 (8445–23,207) | 66,334 (29656–103,013) | 38,475 (6872–70,077) |
CAC-A | 24,588 (15433–39,176) | 9023 (280–23,186) | 26,517 (20258–32,775) | 8768 (4219–13,316) |
CAI-A | 32,566 (20147–52,642) | 17,001 (4994–36,652) | 36,934 (24625–49,242) | 19,651 (8969–30,334) |
Comparing matching and regression results
GLM Regression | Matched | |||
---|---|---|---|---|
Case | Incr. | Case | Incr. | |
HAC | 29.21 (16.44–51.91) | 21.71 (9.16–44.19) | 47.07 (39.07–55.07) | 32.88 (26.2–39.56) |
HAI | 42.65 (23.58–77.16) | 35.16 (16.3–69.44) | 56.08 (36.16–76.01) | 28.55 (12.84–44.27) |
CAC | 10.52 (7.9–14.02) | 3.03 (0.62–6.29) | 11.07 (6.49–15.64) | −0.45 (−2.42–1.52) |
CAI | 15.37 (11.33–20.83) | 7.87 (4.05–13.11) | 24.17 (13.58–34.77) | 13.73 (5.79–21.68) |
CAC-A | 11.35 (6.48–19.88) | 3.85 (−0.8–12.15) | 11.36 (8.27–14.45) | 2.13 (0.01–4.26) |
CAI-A | 16.57 (9.29–29.54) | 9.07 (2.01–21.82) | 16.75 (11.84–21.66) | 7.46 (3.79–11.13) |