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. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: J Am Geriatr Soc. 2013 Mar 21;61(4):542–550. doi: 10.1111/jgs.12160

Appendix A.2.

A Case Series of Comorbidity and Complexity in Assessing Care of Vulnerable Elders 2 The following comorbid condition combinations were used to identify subsamples of individuals with increasing complexity.

R
o
w
Hypertension CAD DM AF Dementia N Mean Simple
Count
Mean GXI
Score
Number of QIs
Eligible, Mean±SD
1 Absent Absent Absent Absent Absent 88 1.6 24 9.4±3.2
2 Present Absent Absent Absent Absent 182 2.8 25 10.6±3.5
3 Present Present Absent Absent Absent 86 4.3 35 12.5±3.7
4 Present Present Present Absent Absent 38 5.2 41 16.0±4.0
5 Present Present Present Present Absent 8 6.3 48 17.8±4.8
6 Present Present Present Present Present 3 7.7 51 22.0±4.6

One to two individuals were selected from each row for qualitative review based on having a low (where possible) versus high complexity score.

Row 1 Individual without complex care needs (Screened by ACOVE for urinary incontinence (UI) and falls): A 78-year-old man without a diagnosis of hypertension, coronary artery disease (CAD), diabetes mellitus (DM), atrial fibrillation (AF), or dementia. The patient had history of prehypertension (2), mild chronic kidney disease (CKD) (2), fall with fracture (5), mild stable anemia (2), obesity (3).

Complexity score: 14 (~15th percentile)

Simple comorbidity count = 1

No polypharmacy (≤6 medications)

Primary care provider visits = 5

No specialty care

NQI (5 QIs to be documented in the medical record, and an additional 11 to be collected by interview):

Gait and balance evaluation

Weighed at each visit

Education for new medication (I)

Drug regimen review annually (I)

Counsel calcium and vitamin D intake (I)

Counsel weight bearing exercise (I)

Discuss risk for OP risks and prevention (I)

Recommend calcium and vitamin D for OP (I)

Screen pain every 2 years (I)

Advance directive or surrogate in OP charts

Pneumococcal vaccine

Annual influenza vaccine

Screen and take history alcohol use (I)

Assessment or counseling to increase physical activity (I)

Colon cancer screening (I)

Eye examination every 2 years (I)

Row 1 Individual with Complex Care Needs (Screened by ACOVE for falls): A 77-year-old man also without hypertension, CAD, DM, AF, or dementia.

The individual had prehypertension (2), anemia with mild decline (4), chronic nonsevere pain (5), old hypothyroidism (2), history of fall with fracture (5), history of osteoporosis (OP) with fracture (4), comorbid insomnia and anxiety with new depression (8), smoked in the past but not presently (1), stable CKD (Stage 4 or 5) (5), tobacco history (1), fatigue (5), problematic alcohol use (6), new bothersome UI symptoms (4).

Complexity score: 51 (~95% percentile)

Simple comorbidity count = 3

Moderate polypharmacy (7–9 medications)

Primary care provider visits = 13

Specialty care: 6 specialist visits (neurology, other medical specialty, psychiatry)

NQI (21 QIs to be documented in the medical record, and an 17 additional QIs to be collected by interview:

Depression symptoms, screen within 2 weeks

Document 3 of 9 DSM-IV symptoms

Document suicidality and psychosis

Treat depression within 2 weeks

If depressed, do not prescribe tricyclics, monoamine oxidase inhibitors, benzodiazepines, or stimulants (except methylphenidate) as first- or second-line therapy

Take a falls history for fall

Perform a fall examination

Perform a gait and balance examination for balance problem (I)

Audiologist teach how to use hearing aid (I)

Weigh at each visit

Follow-up response to new medications

Drug regimen review annually (I)

Check electrolytes within 1 month of starting diuretics

Assess function and pain annually (I)

Recommend physical therapy for OA pain within 3 months (I)

Education for self-management of OA > symptomatic 6 months (I)

Acetaminophen 1st line med for OA (I)

Counsel calcium and vitamin D intake (I)

Counsel weight-bearing exercise (I)

Discuss risk for OP risks and prevention (I)

Recommend calcium and vitamin D for OP (I)

Screen pain every 2 years (I)

History for pain within 1 month

Examination for pain within 1 month

Offer bowel regimen for chronic opioids

Offer treatment for new pain (I)

Advanced directives or surrogate in outpatient charts

Pneumococcal vaccine

Annual influenza vaccine

Screen and take history alcohol use (I)

Assessment or counseling to increase physical activity (I)

Colon cancer screening (I)

Eye examination every 2 years (I)

New UI: take history within 3 months

New UI: perform examination within 3 months

New or persist UI: test urinalysis

New UI: perform post void residual before pharmacological therapy

New UI: discuss treatment options within 3 months

Row 2 individual without complex care needs (Screened by ACOVE for falls): An 85-year-old woman with hypertension only and none of the other conditions.

The individual had well-controlled hypertension (2), normal weight without recent changes (0), new fear of falling or fall (5), OP without fracture (2), stable history of hearing impairment (2).

Complexity score: 11 (~2nd percentile)

Simple comorbidity count = 3

No polypharmacy

Primary care provider visits = 5

Specialty care: 1 visit

NQI (6 QIs to be documented in the medical record, and an additional 12 to be collected by interview):

Perform falls history (I)

Perform a falls examination

Gait and balance evaluation (I)

Weigh at each visit

Drug regimen review annually (I)

Annual electrolytes for diuretic use

Counsel calcium and vitamin D intake (I)

Counsel weight-bearing exercise (I)

Discuss risk for OP risks and prevention (I)

Recommend calcium and vitamin D for OP (I)

Screen pain every 2 years (I)

Advanced directives or surrogate in outpatient charts

Pneumococcal vaccine

Annual influenza vaccine

Screen and take history alcohol use (I)

Assessment and counseling to increase physical activity (I)

Colon cancer screening (I)

Eye examination every 2 years (I)

Row 2 Individual with Complex Care Needs (Screened by ACOVE for worsening UI): An 80-year-old woman with hypertension and none of the other conditions.

The individual had hypertension with high blood pressure (BP) (≥2 high BP readings (140–160 mmHg)) (3). She also had normal hemoglobin at the beginning of the study but with a 0- to 2-mg/dL change during the study period (2), chronic nonsevere pain (5), old hypothyroidism (2), normal weight but with >10% weight loss during the study (4), stable, mild CKD (Stage 2) (2), old hearing problem (2), old vision problem (3), new osteoporotic fracture (6), fatigue (5), insomnia (2), new or bothersome urinary symptoms (4).

Complexity score: 40 (~80th percentile)

Simple comorbidity count = 3

Moderate polypharmacy (7–9 medications)

Primary care provider visits = 12 (saw another provider during time frame, died before assigned primary care provider visit).

Specialty care: 9 visits to a medical specialty

NQI (17 QIs to be documented in the medical record, and an additional 16 to be collected by interview):

Gait and balance evaluation (I)

New depression symptoms, screen within 2 weeks

Counsel nonpharmacological treatment of hypertension (I)

Perform an intervention (any including diet, exercise, counseling) for high BP

Education for new medication (I)

Drug regimen review annually (I)

Weigh at each visit

Document weight loss

Evaluate reversible causes of malnutrition

Evaluate for comorbidities and medications that can cause loss of appetite

Calcium and vitamin D if on steroids for >1 month

Assess function and pain annually (I)

Recommend physical therapy for OA pain within 3 months (I)

Refer to surgery for severe hip and knee OA (I)

Counsel weight-bearing exercise (I)

Discuss risk for OP risks and prevention (I)

Recommend calcium and vitamin D for OP (I)

Screen pain every 2 years (I)

History for pain within 1 month

Examination for pain within 1 month

Offer treatment for new pain

Advanced directives or surrogate in outpatient charts

Pneumococcal vaccine

Annual influenza vaccine

Screen and take history alcohol use (I)

Assessment and counseling to increase physical activity (I)

Colon cancer screening (I)

Eye examination every 2 years (I)

New UI: take history within 3 months

New UI: examine within 3 months

New or persistent UI: order urinalysis

New UI: perform postvoid residual before pharmacological intervention (I)

New UI: Discuss treatment options within 3 months

Row 3 Individual with Moderately Complex Care Needs (Screened by ACOVE for falls): A 79-year-old woman with hypertension and CAD.

The patient had well-controlled hypertension (2), the CAD was old or asymptomatic (2), and there was no history of MI. She had history of fall or fear of falling (5), new OP (3), chronic pain (5), mild but stable anemia (2), normal stable weight (0), history of depression (3), mild stable CKD (estimated glomerular filtration rate 60–90 mL/min per 1.73 m2) (2).

Complexity score: 24 (~23th percentile)

Simple comorbidity count = 4

Severe polypharmacy (10–13 medications)

Primary care provider visits = 6

Specialty care: 2 visits (medical subspecialist)

NQI (12 QIs to document in the medical record and an additional 13 to be collected in interviews):

Take fall history

Perform fall examination

Gait and balance evaluation (I)

Aspirin for patient with CAD

Weigh at each visit

Annual medication review (I)

Advise risk for NSAIDs (I)

If started on chronic NSAID offer gastric protection

Treatment for new OP

Counsel calcium and vitamin D intake (I)

Counsel weight bearing exercise (I)

Discuss risk for OP and prevention (I)

Recommend calcium and vitamin D for OP (I)

Screen pain every 2 years (I)

History for pain with 1 month

Examination for pain with 1 month

Offer treatment for new pain

Assess response to pain treatment (I)

Advanced directives or surrogate in outpatient charts

Pneumococcal vaccine

Annual influenza vaccine

Screen and take history alcohol use (I)

Assessment and counseling to increase physical activity (I)

Colon cancer screening (I)

Eye examination every 2 years (I)

Row 3 Individual with Complex Care Needs (Screened by ACOVE for falls): A 77-year-old woman with hypertension and CAD.

She had well-controlled hypertension (2). Her diagnosis of CAD was old. and she is currently asymptomatic, but she had a new MI within past 2 years (5) and a history of nonsevere congestive heart failure (3). She also had chronic nonsevere pain (5), mild but stable anemia (2), stable CKD Stage 3 (3), breast cancer that was old or not active (3), old hypothyroidism (2), weight was stable and normal (0), new falls problem with new fracture (6), old OP diagnosis (2), comorbid insomnia and anxiety and old depression (7), known hearing problem (2), chronic pain (5) old bothersome UI (3), medical nonadherence (7).

Complexity score: 57 (~97th percentile)

Simple comorbidity count = 5

Very severe polypharmacy (≥14 medications)

Primary care visits = 4

Specialty care: 3 visits total (neurology and psychiatry)

NQI (10 QIs to be documented and another 10 to be collected by interview):

Take fall history

Perform fall examination

Aspirin for patient with CAD

Weigh at each visit

Document weight loss

Evaluate reversible causes of malnutrition

Evaluate for comorbidities and medications that can cause loss of appetite

Assess function and pain annually (I)

Education for self-management of OA symptomatic for >6 months (I)

Offer acetaminophen as first-line therapy for OA (I)

Refer to surgery for severe hip and knee OA (I)

Recommend calcium and vitamin D for OP (I)

History for pain within 1 month (I)

Examination for pain within 1 month (I)

Screen pain every 2 years (I)

Offer treatment for new pain (I)

Assess response to new pain treatment (I)

Advanced directives or surrogate in outpatient charts

Pneumococcal vaccine

Annual influenza vaccine

Row 4 Moderately Complex Patient (Screened by ACOVE for falls): A 82 year-old man with hypertension and CAD and DM.

The patient had hypertension with mildly high BP (3), the CAD was old/asymptomatic and without history of MI (2), diabetes was well controlled (hgbA1c all ≤8, without significant CKD) (4). He also had mild but stable anemia (hgb 12–14) (2), history of prostate cancer (2), overweight but with weight loss (2), new fall/fear of falling (5), and past smoking (1).

Complexity score: 21 (~20th percentile)

Simple comorbidity count = 4

Moderate polypharmacy (7–9 medications)

Primary care provider visits = 6

Specialty care: 5 total visits (urology and other surgical specialty)

NQI (12 QIs to document and another 11 to collect in interviews):

Annual HbA1c

Check BP at each visit if diabetic

Annual proteinuria test if diabetic

Offer intervention for hypercholesterolemia and DM (I)

Daily aspirin therapy for diabetes

ACE-I or ARB for cardiac risk and DM

Annual foot examination (I)

Gait and balance examination

Aspirin for individual with CAD

Offer nonpharmacological intervention for hypertension (I)

Once or twice daily dosing for hypertension treatment (I)

Weigh at each visit

Annual medication regimen review (I)

Annual electrolytes for diuretic

Recommend calcium and vitamin D for OP (I)

Screen for pain every 2 years (I)

Advanced directives or surrogate in outpatient charts

Pneumococcal vaccine

Annual influenza vaccine

Screen and take history alcohol use (I)

Assessment and counseling to increase physical activity (I)

Colon cancer screening (I)

Eye examination every 2 years (I)

Row 4 Individual with Complex Care Needs (Screened by ACOVE for falls): An 87-year-old woman with hypertension and CAD and DM.

The individual had hypertension (moderately well controlled, with mildly high BP (3), CAD that was old and asymptomatic but with new recent MI (5), controlled DM without CKD (4). She also had history of well-controlled hypercholesterolemia (2), history of nonsevere cerebrovascular disease (CVD) (3.5), morbidly obese (6), history of falls with old fracture (5), anxiety (6), smoked in the past (1), old hearing (2) and vision problem (3).

Complexity score: 40.5 (~80th percentile)

Simple comorbidity count = 4

Moderate polypharmacy (7–9 medications)

Primary care provider visits = 4

Specialty care: none

NQI (10 QIs to document in the medical record, and another 19 to be collected by interview):

Offer intervention for hypercholesterolemia and DM (I)

Annual HbA1c

Annual proteinuria test

Check BP at each visit if diabetic

Daily aspirin therapy for DM

Annual foot examination (I)

Aspirin for CAD

Stroke prophylaxis for CVA

Take fall history

Perform fall examination

Gait and balance examination for balance problem (I)

Audiologist counseling if qualifies for hearing aids (I)

Offer nonpharmacological intervention for hypertension (I)

Once or twice daily dosing for hypertension treatment (I)

Annual medication review (I)

Recommend calcium and vitamin D for OP (I)

Assess pain and function annually in OA (I)

Education for self-management of OA symptomatic for >6 months (I)

Screen for pain every 2 years (I)

Counseling weight-bearing exercise (I)

Weighed at each visit

Advanced directives or surrogate in outpatient charts

Pneumococcal vaccine

Annual influenza vaccine

Discuss risk for OP and prevention (I)

Screen and take history alcohol use (I)

Assessment and counseling to increase physical activity (I)

Colon cancer screening (I)

Eye examination every 2 years (I)

Row 5 Individual with Moderately Complex Care Needs (Screened by ACOVE for falls): A 79-year-old man with hypertension, CAD, DM, and AF.

The individual had controlled hypertension, the CAD was old or asymptomatic and without history of MI, well-controlled DM, AF that was old and stable (without embolic history). He also had Stage 3 CKD, a new diagnosis of CVD with severe stenosis, history of well-controlled hypercholesterolemia, past history of smoking, old hypothyroidism, normal stable weight, old hearing problem, new falls problem but without fracture.

Complexity score: 30 (~50th percentile)

Simple comorbidity count = 6

Severe polypharmacy (10–13 medications)

Primary care provider visits = 8

Specialty care: 14 visits (neurology, urology, other medical subspecialty, other surgical specialty)

NQI (15 QIs to document in the medical record, and another 23 to collect by interview) :

Annual HbA1c

Annual proteinuria test (I)

Check BP at each visit if diabetic

Daily aspirin therapy for DM

Offer intervention for hypercholesterolemia and DM (I)

Annual foot examination (I)

ACE-I or ARB for cardiac risk and DM

Take fall history

Perform fall examination

Gait and balance examination for balance problem (I)

Offer nonpharmacological treatment for hypertension (I)

Once or twice daily dosing for hypertension treatment (I)

Aspirin for patient with CAD

Anticoagulant for high-risk AF

CVA stroke prophylaxis for recurrent stroke

Weigh at each visit

Education for new medication (I)

Annual medication review (I)

Warfarin monitoring every 6 weeks

Check electrolytes within 1 month of starting diuretics

Assess function and pain annually (I)

Recommend physical therapy for OA pain within 3 months (I)

Education for self-management of OA symptomatic for >6 months (I)

Acetaminophen first-line medication for OA (I)

Counsel calcium and vitamin D intake (I)

Counsel weight-bearing exercise (I)

Discuss risk for OP risks and prevention (I)

Recommend calcium and vitamin D for OP (I)

Screen pain every 2 years (I)

History for pain within 1 month

Examination for pain within 1 month

Pneumococcal vaccine

Annual influenza vaccine

Discuss risk for OP and prevention (I)

Screen and take history alcohol use (I)

Assessment and counseling to increase physical activity (I)

Colon cancer screening (I)

Eye examination every 2 years (I)

Row 5 Individual with Complex Care Needs (Screened by ACOVE due falls): A 75-year-old man with hypertension, CAD, DM, and AF.

The individual had well-controlled hypertension (2), CAD that was old and asymptomatic and an MI within 2 years (5), well-controlled DM (4) but with stable severe CKD (5 points for CKD plus additional 2 points for CKD+DM combination), and the AF was old and stable without embolic history (4). In addition, he had CHF that was well controlled and nonsevere with preserved ejection fraction (3), new hypercholesterolemia (2), severe peripheral artery disease (6) , stable anemia (2), new falls problem without fracture (5), smoking history not current (1), new-onset or worsening memory but without diagnosis of dementia (5), problematic alcohol use (6), vision impairment (3), benign prostatic hyperplasia (3), newly diagnosed depression (7), chronic pain (5).

Complexity score: 70 (~99th percentile)

Simple comorbidity count = 6

Moderate polypharmacy (7–9 medications)

Primary care provider visits = 7

Specialty care: none

NQI (21 QIs to be documented in the medical record and an additional 11 to be collected in interviews):

Failed memory screen, assess memory

New depression symptoms, screen within 2 weeks

New depression: document 3 of 9 DSM-IV symptoms

New depression: document suicidality and psychosis

Treat depression within 2 weeks

Annual HbA1c

Annual proteinuria test

Check BP at each visit if diabetic

Daily aspirin therapy for DM

Offer intervention for hypercholesterolemia and DM (I)

Take fall history

Perform fall examination

Offer nonpharmacological treatment for hypertension (I)

Once or twice daily dosing for hypertension treatment (I)

ACE-I if HTN and renal insufficiency

ASA for CAD

Anticoagulant for high-risk AF

Stroke prophylaxis for CVA (I)

Weighed at each visit

Follow-up response to new med

Warfarin monitoring 6 weeks

Annual electrolytes for diuretic

Annual medication review (I)

Screen for pain every 2 years (I)

Endocarditis prophylaxis for risk procedures (I)

Advanced directives or surrogate in outpatient charts

Pneumococcal vaccine

Annual influenza vaccine

Screen and take history alcohol use (I)

Assessment and counseling to increase physical activity (I)

Colon cancer screening (I)

Eye examination every 2 years (I)

Row 6 Individual with Very Complex Care Needs (Screened by ACOVE for all three conditions: falls, dementia and UI): A 76-year-old woman with hypertension, CAD, DM, AF, and dementia.

The individual had ≥2 moderately high SBP readings (3), CAD that was old but with ongoing symptoms and history of MI (5), controlled DM (4) with stable Stage 3 CKD (3, with no additional points for the combination of DM and CKD at these levels of severity), AF that was old and without embolism (4), and her dementia was an existing diagnosis without psychiatric symptoms (4). She also had severe chronic obstructive pulmonary disease (COPD) (6), history of well-controlled hypercholesterolemia (2), history of nonsevere CVD (4.5), nonsevere chronic congestive heart failure (6.5), chronic severe pain (7), severe anemia with decrease in Hgb >2 mg/dL (5), old hypothyroidism (2), new falls problem without fracture (5), anxiety with comorbid depression (7), normal weight without weight loss (0), new or bothersome UI (4).

Complexity score: 72 (the most complex person in the sample)

Simple comorbidity count = 9

Very severe polypharmacy (≥14 medications)

Primary care provider visits = 14

Specialty care (2 total visits): psychiatry

NQI (26 QIs to be documented in the medical record and an additional 15 to be collected in interviews):

Counseling about cholinesterase inhibitors in dementia (I)

Dementia: provide caregiver education about safety, conflicts and resources

Annual HbA1c

Annual proteinuria test

Check BP at each visit if diabetic

Daily aspirin therapy for DM

Cholesterol intervention for DM

Annual foot examination (I)

ACE-I or ARB for cardiac risk factors and DM

Offer non-pharmacologic therapy for hypertension (I)

Fall history (I)

Fall examination (I)

Gait and balance examination

ACE-I or ARB for heart failure and low ejection fraction

Intervene to decrease low-density lipoprotein cholesterol if >130 mg/dL and CHD

Aspirin for CAD

Beta-blocker after MI in the past 2 years (I)

Anticoagulant for high risk AF

CVA stroke prophylaxis against recurrent stroke

Weigh at each visit

Warfarin monitoring 6 weeks

Electrolytes within 1 month for diuretic

Annual medication review (I)

History for pain within 1 month

Examination for pain within 1 month

Offer treatment for new pain

Counsel weight-bearing exercise (I)

Discuss risk for OP risks and prevention (I)

Screen pain every 2 years (I)

Advanced directives or surrogate in outpatient charts

Pneumococcal vaccine

Annual influenza vaccine

Screen and take history alcohol use (I)

Assessment and counseling to increase physical activity (I)

Colon cancer screening (I)

Eye examination every 2 years (I)

New UI: take history within 3 months

New UI: examine within 3 months

New or persistent UI: order urinalysis

New UI prescription medication: postvoid residual before pharmacological therapy (I)

New UI: Discuss treatment options within 3 months

I = QI strictly collected in interviews (cannot be collected from the medical record). All other QIs are obtained strictly from medical record or can be collected from the medical record or interview.

NQI= number of quality indicators (QIs); HbA1c= glycosylated hemoglobin; ACE-I= angiotensin-converting enzyme inhibitor; ARB=angiotensin receptor blocker; DSM-IV= Diagnostic and Statistical Manual of Mental Diseases, Fourth Edition.