Background
Methods
Search Strategy
Inclusion/Exclusion Criteria
Methodological Appraisal
Results
Study Characteristics
Comorbidity Study | Study Quality Score/8 | Asthma (%) | CVD (%) | Diabetes (%) | Dyslipidemia (%) | Hypertension (%) | Malignancy (%) | Mental problem/ depression#
(%) | Osteoporosis (%) |
---|---|---|---|---|---|---|---|---|---|
Arthritis | |||||||||
Hill et al, 2006 [29] ≥ 55 yrs n = 2,054 self-report of doctor diagnosed arthritis (prevalence 43.9%) and mental health condition | 6 | - | - | - | - | - | - | 13.1 | - |
NHS 2004–05 [2] ≥ 65 yrs n = 3,212 self-report of all conditions (prevalence arthritis 49.4%) | 7 | 12.1 | 21.5 | 14.1 | - | - | 6.9 | 8.8 | - |
O'Halloran et al, 2003 [42] ≥ 65 yrs n = 2,976 GP encounters (OAa prevalence 20.9%) | 5 | - | 18.7 (IHDa) | 13.9 | 18.7 | 50.8 | - | 12.9#
| 11.5 |
Hill et al, 2006 [29] ≥ 18 yrs n = 7,473 self-report of doctor diagnosed arthritis (prevalence 18.3%) and mental health condition | 6 | - | - | - | - | - | - | 14.9 | - |
NHS 2004–05 [2] ≥ 25 yrs n = 17,202 self-report of all conditions (prevalence of arthritis 22.8%) | 7 | 13.2 | 12.7b
| 9.3b
| - | - | 5.0 | 13.3 | - |
Waghorn et al, 2006 [35] 15–64 yrs n = 37,580 self-report 1998 SDACc (prevalence arthritis 9.2%) | 5 | - | - | - | - | - | - | 6.0d | - |
Comorbidity Study | Study Quality Score/8 | Arthritis (%) | CVD (%) | Diabetes (%) | Hypertension (%) | Malignancy (%) | Mental problem/ depression#
(%) | Osteoporosis (%) |
---|---|---|---|---|---|---|---|---|
Asthma | ||||||||
Adams et al, 2006 [30] ≥ 55 yrs n = 2050 self-report of doctor diagnosed asthma and comorbidities (asthma prevalence 9.6%) | 6 | 56.9 | 26.9 (HD)a
9.1 (Stroke)b
| 12.1 | - | 17.7 | - | 17.3 |
NHS 2004–05 [2] ≥ 65 yrs n = 3,212 self-report all conditions (asthma prevalence 9.41%) | 7 | 63.4 | 20.1 | 16.0 | - | 5.7 | 8.1 | - |
Adams et al, 2006 [30] ≥ 18 yrs n = 7,443 self-report of doctor diagnosed asthma and comorbidities (asthma prevalence 11.2%) | 6 | 21.4. | 6.9 (HD)a
1.5 (Stroke)b
| 5.3 | - | 5.5 | - | 4.7 |
Goldney et al, 2003 [31] ≥ 15 yrs (mean age 44 yrs) n = 3010 self-report of doctor diagnosed asthma (prevalence 9.9%), depression assessed by PRIME-MD questionnairec
| 6 | - | - | - | - | - | 22.1# (all depression) 14.4# (major depression) | - |
NHS 2004–05 [2] ≥ 25 yrs n = 17,202 self-report all conditions (asthma prevalence 9.40%) | 7 | 32.0 | 6.7d
| 6.1d
| - | 3.2d
| 15.0 | - |
Pilotto et al, 2004 [36] ≥ 18 yrs (mean age 48 yrs) n = 170 GP recruitment of asthma patients, self-report of comorbidities | 4 | - | 11.8e
| 7.1 | 18.2 | - | - | 6.5 |
Comorbidity Study
| Study Quality Score/8 | Arthritis (%) | Asthma (%) | CVD (%) | Diabetes (%) | Hypertension (%) | Mental health problem (%) |
---|---|---|---|---|---|---|---|
Cancer | |||||||
NHS 2004–05 [2] ≥ 65 yrs n = 3,212 self-report all conditions (malignant neoplasm prevalence 6.1%) | 7 | 55.7 | 15.1 | 14.6 | 9.0 | - | 16.1 |
NHS 2004–05 [2] ≥ 25 yrs n = 17,202 self-report all conditions (malignant neoplasm prevalence 1.7%) | 7 | 43.8 | 6.1 | 18.3 | 8.8 | - | 7.1 |
Valery et al, 2006 [52] all ages (85% ≥ 40 yrs) n = 810, non-indigenous patients identified from cancer registry, comorbidities hospital administrative data and medical records | 5 | - | 12.0 (Respiratory Disease) | 5.0 (ACS)a
| 6.0 | 8.0 | - |
Comorbidity Study | Study Quality Score/8 | Arthritis (%) | Asthma (%) | CVD (%) | Dyslipidemia (%) | Hypertension (%) | Malignancy (%) | Mental problem/ depression#
(%) | Osteoporosis (%) |
---|---|---|---|---|---|---|---|---|---|
Diabetes | |||||||||
O'Halloran et al, 2003 [42] ≥ 65 yrs n = 2,976 GP encounters (diabetes prevalence 14.4%) | 5 | 20.1 (OA)a
| - | 23.6 (IHD)a
| 22.2 | 52.7 | - | 9.0#
| 13.8 |
NHS 2004–05 [2] ≥ 65 yrs n = 3,212 self-report all conditions (diabetes prevalence 13.7%) | 7 | 51.0 | 11.0 | 26.7 | - | - | 5.4 | 7.2 | |
Thomas and Nestel, 2007 [43] mean age = 65 yrs, n = 3893 NEFRON study, GP diagnosed type 2 diabetes and comorbidities | 4 | - | - | 40.1b
| - | - | - | - | - |
Bruce et al, 2005 ≥ 40 yrs [38] (mean age 64 yrs) n = 1,273 clinically diagnosed type 2 diabetes, depression GHSc questionnaire, comorbidities self-report validated with hospital records | 5 | - | - | 41.5d
| - | 51.1 | - | 31.5#
| |
Clarke et al, 2006 [40] ≥ 35 yrs (mean age 64 yrs), n = 20,538, diabetes diagnosed by diabetes medication, HbA1c or hospital diagnosis (primary or secondary ICD-9 250), co-morbidities identified from hospital administrative data (ICD-9 CM) | 6 | 4.0a
(Musc. Dis) | 2.9a
(Resp Dis) | 12.3e
| - | - | 5.6 | 0.9 | |
Goldney et al, 2004 [32] ≥ 15 yrs n = 3,010 self-report of doctor diagnosed diabetes (prevalence 5.2%), depression by PRIME-MDf questionnaire. | 5 | 23.6#
| |||||||
Kemp et al, 2005 [33] ≥ 25 yrs, n = 11,247 AusDiab survey, self-report doctor diagnosed diabetes, confirmed with hypoglycemic drug use or glucose tolerance test (diabetes prevalence 3.9%), clinical measurement of comorbidities. | 5 | - | - | - | 47.1 | 53.8 | - | - | - |
Mitchell et al, 1998 [34] ≥ 49 yrs, n = 3,654 self report of doctor diagnosed diabetes (prevalence 5.9%) and comorbidities | 6 | - | - | 54.7 | - | 57.6 | - | - | - |
NHS 2004–05 [2] ≥ 25 yrs n = 17,202 self-report all conditions (diabetes prevalence 5.2%) | 7 | 45.4g
| 12.3g
| 20.9 | - | - | 4.8 | 9.0 |
Comorbidity Study | Study Quality Score/8 | Arthritis (%) | Asthma (%) | CVD (%) | Diabetes (%) | Dyslipidemia (%) | Hypertension (%) | Malignancy (%) | Mental problem/ depression#
(%) |
---|---|---|---|---|---|---|---|---|---|
Cardiovascular Disease | |||||||||
NHS 2004–05 [2] ≥ 65 yrs n = 3,212 HSVDa self-report all conditions (prevalence 18.4%) | 7 | 57.9 | 10.3 | • | 19.8 | - | - | 8.4 | 10.5 |
Krum et al, 2006 [44] mean age 64 yrs, n = 479, admission to hospital for MIa, comorbidities from hospital administrative data and records | 4 | - | - | 24.2 (CHFa) | 21.6 | 52.9 | 53.4 | - | - |
O'Halloran et al, 2003 [42] ≥ 65 yrs n = 2,976 GP encounters (IHDa prevalence 16.9%) | 5 | 23.1 (OA) | - | 20.1 | 23.1 | 47.3 | - | 9.5#
| |
Parker et al, 2006 [37] mean age 63 yrs, n = 489 hospital admission for ACSa, depression assessed by CIDIb, comorbidities self-report | 5 | 34.6 (pMIa) | 17.3 | 63.5 | 10.6 | ||||
Simons et al, 2002 [45] ≥ 60 yrs n = 2,217 (Dubbo study) hospital admission for MIa (prevalence 18.7%), comorbidities from medical history and clinical examination | 6 | - | - | 36.0 (pCSa) | 16.0 | 26.9 | 62.0 | - | |
Krum et al, 2001 [46], ≥ 60 yrs, n = 22,060, GP diagnosis CHFa (prevalence 13.2%), comorbidities from hospital administrative data and records | 5 | - | - | 44.8 (angina) 29.7 (pMIa) | - | - | 68.3 | - | - |
Stewart et al, 2001 [41] ≥ 55 yrs (mean age 76 yrs) n = 200 hospital admission CHFa, comorbidities hospital discharge data | 4 | - | 36.0 (CADa) | 78.0 (IHDa) 70.0 (pMI) | 32.0 | - | 66.0 | - | - |
O'Halloran et al, 2003 [42] ≥ 65 yrs n = 2976 GP encounters (HTc prevalence 45.6%) | 5 | 23.3 (OA) | - | 17.5 (IHDa) | 16.7 | 23.7 | • | - | 9.0# |
Sturm et al, 2004 [47] mean age 71 yrs, n = 226 (NEMESIS)a, stroke detected & diagnosed by medical practitioner, comorbidities by past medical history and/or current presentation (diabetes or AFa) | 5 | - | - | 23.5 (AFa) 6.2 (PVDa) 8.8 (pMIa) | 19.1 | - | 58.9 | - | - |
NHS 2004–05 [2] ≥ 25 yrs n = 17,202 HSVD self-report all conditions (prevalence 5.7%) | 7 | 54.4d
| 12.6 | • | 19.2 | - | - | 7.0d
| 14.0d
|
Powell et al, 2001 [48], 20–85 yrs (mean age 66 yrs) n = 1765, hospital admission for HD (AMI, angina, IHD, CHF)c ICD-9 CM, comorbidities extracted from medical records and coded to corresponding ICD-9 CM diagnosis codes | 4 | 2.2 (RAa) | 14.6 (CALa) | 12.7 (Arra) 11.5 (CVa) 8.2 (PVDa) | 18.4 | 22.8 | 47.7 | 3.3 | - |
Burvill et al, 1997 [39] all ages, n = 191 (Perth community stroke study), first ever stroke (physician diagnosis), self-report co-morbidities at time of strokee
| 4 | - | - | 18.0 (pMI) 31.0 ((angina) | 12.0 | - | 62.0 | - | 8.2#e
|
Comorbidity Study | Study Quality Score/8 | Arthritis (%) | Asthma (%) | CVD (%) | Diabetes (%) | Hypertension (%) | Dyslipidemia (%) | Malignancy (%) | Mental problem/ depression (%) |
---|---|---|---|---|---|---|---|---|---|
Mental health problem/depression | |||||||||
O'Halloran et al, 2003 [42] ≥ 65 yrs n = 2,976, GP encounters (depression prevalence 10%) | 5 | 27.0 (OA) | - | 15.9 (IHD) | 12.9 | 40.9 | 18.9 | 23.7 | • |
NHS 2004–05 [2] ≥ 65 yrs n = 3,212 mental health and behavioural problemsa, self-report all conditions (prevalence 9.5%) | 7 | 30.0 | 5.28 | 26.7 | 6.8 | - | - | 6.3 | • |
Hunt et al 2004 [49] ≥ 18 yrs n = 10,241, generalised anxiety disorder diagnosed by composite international diagnostic interview (CIDI) (prevalence 4.5%) depression CIDI | 4 | - | - | - | - | - | - | - | 38.9 (depression) |
NHS 2004–05 [2] ≥ 25 yrs n = 17,202 mental health and behavioural problemsa, self-report all conditions (prevalence 12.1%) | 7 | 30.3 | 14.1 | 14.0 | 4.7 | - | - | 6.3 | • |
Wilson et al 2003 [50] ≥ 15 yrs n = 382 GP diagnosed depression (Medic-GP database), comorbidities from medical records | 5 | - | - | - | - | - | - | - | 8.9 (anxiety) |
National Survey of Mental Health and Wellbeing, 1997 [51] ≥ 18 yrs n = 10,641 mental health problem diagnosed by CIDI (prevalence 12.3%) | 7 | ||||||||
Affective disorder (prevalence 3.8%) | - | - | - | - | - | - | - | 47.3 (anxiety) | |
Anxiety disorder (prevalence 5.5%) | - | - | - | - | - | - | - | 24.5 (affective) |