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SIR Model Explorer
CLABSI, CAUTI, MRSA Bacteremia LabID, CDI LabID
CLABSI Risk Adjustment for ICU and Ward Locations (ACHs)
The number of predicted CLABSIs under the 2022 baseline for ICU and ward locations is calculated using a negative binomial regression model and is risk adjusted based on the following variables found to be statistically significant predictors of CLABSI incidence. Information about the statistical properties of NHSN risk adjustment models, including how the number of predicted events is calculated, is available in NHSN’s Guide to the SIR (2022 baseline) [PDF – 1MB].
| Parameter | Parameter Estimate | Standard Error | P-value |
|---|---|---|---|
| Intercept | -8.8456 | 0.2347 | <.0001 |
| ÐÇ¿ÕÓéÀÖ¹ÙÍø Location Code: Critical Care Group 1
Medical Cardiac Critical Care- IN:ACUTE:CC:C Pediatric Medical-Surgical Critical Care-IN:ACUTE:CC:MS_PED Pediatric Trauma Critical Care- IN:ACUTE:CC:T_PED Trauma Critical Care- IN:ACUTE:CC:T |
1.0072 | 0.0887 | <.0001 |
| ÐÇ¿ÕÓéÀÖ¹ÙÍø Location Code: Critical Care Group 2
Surgical Cardiothoracic Critical Care- IN:ACUTE:CC:CT |
0.4236 | 0.0941 | <.0001 |
| ÐÇ¿ÕÓéÀÖ¹ÙÍø Location Code: Critical Care Group 3
Burn Critical Care- IN:ACUTE:CC:B Medical Critical Care- IN:ACUTE:CC:M Onsite Overflow Critical Care-IN:ACUTE:CC:OF_ONSITE Pediatric Burn Critical Care-IN:ACUTE:CC:B_PED Pediatric Medical Critical Care-IN:ACUTE:CC:M_PED Pediatric Respiratory Critical Care- IN:ACUTE:CC:R_PED Pediatric Surgical Cardiothoracic Critical Care- IN:ACUTE:CC:CT_PED Prenatal Critical Care- IN:ACUTE:CC:PNATL Respiratory Critical Care-IN:ACUTE:CC:R |
1.1416 | 0.0853 | <.0001 |
| ÐÇ¿ÕÓéÀÖ¹ÙÍø Location Code: Critical Care Group 4
Medical-Surgical Critical Care-IN:ACUTE:CC:MS Neurologic Critical Care-IN:ACUTE:CC:N Neurosurgical Critical Care- IN:ACUTE:CC:NS Surgical Critical Care- IN:ACUTE:CC:S Pediatric Surgical Critical Care- IN:ACUTE:CC:S_PED |
0.9184 | 0. 0827 | <.0001 |
| ÐÇ¿ÕÓéÀÖ¹ÙÍø Location Code: Mixed Acuity Group
Adult Mixed Acuity Unit- IN:ACUTE:MIXED:ALL_ADULT Mixed Age Mixed Acuity Unit- IN:ACUTE:MIXED:ALL
Pediatric Mixed Acuity Unit- IN:ACUTE:MIXED:ALL_PEDS |
0.6581 | 0. 0929 | <.0001 |
| ÐÇ¿ÕÓéÀÖ¹ÙÍø Location Code: Step Down Group
Adult Step-Down Unit- IN:ACUTE:STEP Pediatric Step-Down Unit- IN:ACUTE:STEP:PED Step-Down Neonatal Nursery- IN:ACUTE:STEP:NURS |
0.6617 | 0.0857 | <.0001 |
| ÐÇ¿ÕÓéÀÖ¹ÙÍø Location Code: Ward Group 1
Gerontology Ward- IN:ACUTE:WARD:GNT Medical Ward- IN:ACUTE:WARD:M Onsite Overflow Ward- IN:ACUTE:WARD:OF_ONSITE Pediatric Surgical ward- IN:ACUTE:WARD:S_PED |
0.5714 | 0.0840 | <.0001 |
| ÐÇ¿ÕÓéÀÖ¹ÙÍø Location Code: Ward Group 3
Ear, Nose, Throat Ward- IN:ACUTE:WARD: ENT Gastrointestinal Ward- IN:ACUTE:WARD:GI Genitourinary Ward- IN:ACUTE:WARD:GU Jail Unit- IN:ACUTE:WARD:JAL Pediatric Genitourinary Ward- IN:ACUTE:WARD:GU_PED Orthopedic Trauma Ward- IN:ACUTE:WARD:T_ORT Pediatric Medical- Surgical Ward- IN:ACUTE:WARD: MS_PED Pediatric Medical Ward- IN:ACUTE:WARD:M_PED Pulmonary Ward- IN:ACUTE:WARD:PULM |
0.7840 | 0.0926 | <.0001 |
| ÐÇ¿ÕÓéÀÖ¹ÙÍø Location Code: Ward Group 4
Antenatal Care Ward- IN:ACUTE:WARD: ANTENAT Burn Ward- IN:ACUTE:WARD:B Gynecology Ward- IN:ACUTE:WARD:GYN Medical-Surgical Ward- IN:ACUTE:WARD:MS Neurology Ward- IN:ACUTE:WARD:N Neurosurgical Ward- IN:ACUTE:WARD:NS Pediatric Burn Ward- IN:ACUTE:WARD:B_PED Plastic Surgery Ward- IN:ACUTE:WARD:PLS Surgical Ward- IN:ACUTE:WARD:S Telemetry Ward- IN:ACUTE:WARD:TEL Vascular Surgery Ward-IN:ACUTE:WARD:VS |
0.4028 | 0.0822 | <.0001 |
| ÐÇ¿ÕÓéÀÖ¹ÙÍø Location Code: Ward Group 2
Adolescent Behavioral Health Ward- IN:ACUTE:WARD: BHV_ADOL Behavioral Health/Psych Ward- IN:ACUTE:WARD:BHV Labor and Delivery Ward-IN:ACUTE:WARD:LD Labor, Delivery, Recovery, Postpartum Suite- IN:ACUTE:WARD:LD_PP Orthopedic ward-IN:ACUTE:WARD: ORT Pediatric Behavioral Health Ward- IN:ACUTE:WARD:BHV_PED Pediatric Neurology Ward- IN:ACUTE:WARD:N_PED Pediatric Neurosurgical ward- IN:ACUTE:WARD:NS_PED Pediatric Orthopedic Ward- IN:ACUTE:WARD: ORT_PED Pediatric Rehabilitation Ward- IN:ACUTE:WARD:REHAB_PED Postpartum Ward- IN:ACUTE:WARD:PP Rehabilitation Ward (within Hospital)- IN:ACUTE:WARD:REHAB Stroke (Acute) Ward- IN:ACUTE:WARD:STRK Well Newborn– Nursery (Level I)- IN:ACUTE:WARD:NURS |
REFERENT | – | – |
| Medical School Affiliation1: Graduate/Major | 0.0989 | 0.0253 | <.0001 |
| Medical School Affiliation1: Undergraduate/Non-teaching | REFERENT | – | – |
| Facility type (based on NHSN enrollment):
General Acute Care Hospital (HOSP-GEN) Children’s Hospital (HOSP-CHLD) Military Hospital (HOSP-MIL) Veteran’s Affairs Hospital (HOSP-VA) Women’s and Children’s Hospital (HOSP-WOMCHILD) |
0.7286 | 0.2220 | 0.0010 |
| Facility type (based on NHSN enrollment):
Orthopedic Hospital (HOSP-ORTHO) Surgical Hospital (HOSP-SURG) Women’s Hospital (HOSP-WOM) |
REFERENT | – | – |
| Average length of stay2: 4.8-5.6 days | 0. 0946 | 0.0241 | <.0001 |
| Average length of stay2: ≥5.7 days | 0.2042 | 0.0238 | <.0001 |
| Average length of stay2: <4.8 days | REFERENT | – | – |
| Number of beds1: 138–424 beds | 0.0784 | 0.0323 | 0.0151 |
| Number of beds1: ≥425 beds | 0.1628 | 0.0355 | <.0001 |
| Number of beds1: <138 beds | REFERENT | – | – |
| Proportion of total beds that are ICU3: ≥0.189 | 0.0747 | 0.0197 | 0.0001 |
| Proportion of total beds that are ICU3: <0.189 | REFERENT | – | – |
Footnotes:
1 Medical school affiliation and number of beds are reported on the Annual Hospital Survey [PDF – 1MB].
2 Average length of stay is calculated as # annual patient days / # annual admissions, as reported on the Annual Hospital Survey [PDF – 1MB].
3 Proportion of beds that are ICU is calculated as: # of ICU beds / total # of beds as reported on the Annual Hospital Survey [PDF – 1MB].
