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Waiting in pain: a systematic investigation into the provision of persistent pain services in Australia

Malcolm N Hogg, Stephen Gibson, Amal Helou, Jacklyn DeGabriele and Michael J Farrell
Med J Aust 2012; 196 (6): 386-390.
doi:
10.5694/mja12.10140
Abstract

Objectives: To document and describe outpatient persistent pain management services in Australia.

Design, participants and setting: Systematic survey conducted between 1 December 2008 and 31 January 2010 of 57 services providing outpatient care to adult clients with persistent pain, plus five specialised paediatric services throughout Australia.

Main outcome measures: Service structure, including funding processes; activity, including client numbers, access to specialised services (inpatient care, pain relief interventions); waiting times; and use of allied-health-professional-based pain management programs.

Results: Of 68 services identified, 57 participated in the study. The median waiting time from referral receipt to initial clinical assessment for a publicly funded outpatient adult pain management service was 150 days, compared with 38.5 days for a privately funded service (P < 0.05). There was substantial variability among providers in range of services offered, including provision and duration of allied-health pain management programs. The level of service provision for children and rural patients is notably lower than that reported for urban adult constituents.

Conclusions: Persistent pain management services are currently unable to meet service requirements adequately, and waiting times are more prolonged for publicly funded than privately funded services. Greater service provision is required in rural areas and for children.

Persistent (or chronic) pain will afflict one in five Australians during their lifetime1 and is estimated to cost the Australian economy $34 billion per annum.2 Chronic pain has significant effects on a person’s physical and psychological wellbeing, with poor fitness, high rates of psychological distress including suicidality,3 impaired work performance,4 and high use of health care services.5,6 Specialised assessment and treatment processes, including an interdisciplinary team approach and group pain management programs are an established standard of care.7

Substantial evidence exists for both the efficacy and effectiveness of cognitive behaviour therapy within a pain clinic environment,8,9 with consistent improvements in pain experience and interference, psychological wellbeing and physical functioning. Similarly, early cognitive,10 physical11 or pharmacological12 interventions have been shown to reduce the frequency and severity of some persistent pain states. Consistent with this, a systematic review of the influence of excessive waiting times for access to appropriate pain management found evidence of poorer outcomes in terms of patient quality of life and psychological wellbeing for people waiting up to 6 months for assessment by a pain management service.13

Being aware of disparate waiting times across the country and within regions, the Australian Pain Society (APS), a chapter of the International Association for the Study of Pain (IASP), initiated this Waiting in Pain project to better define the current status of service provision for people with persistent pain in Australia. The project’s particular focus was on waiting times for clinic access and the availability of allied-health-professional-based group pain management programs (PMP).

Methods

The Waiting in Pain project involved a structured interview-based survey conducted between 1 December 2008 and 31 January 2010 that included a range of quantitative questions as well as qualitative, open-ended questions (interview questions available on request). National specialist pain management services were identified from an existing APS directory, internet searches, and by interview of clinical leaders in each region. One or both of two researchers performed telephone or in-person interviews with service directors (medical, nursing and/or allied-health staff), with participants provided with the questionnaires before the interview and with telephone or email follow-up as required. Services were asked to participate if they managed more than 100 clients per annum and if they gave consent for data collection. In addition, services focused on persistent pain management in children were invited to participate.

The Waiting in Pain project focused on services providing outpatient care for persistent and chronic pain. Core (quantitative) questions addressed service structure, including links to hospital-based acute pain services, numbers of referrals and initial consultations per annum, waiting time from receipt of referral to initial assessment, numbers of medical staff, including specialist training positions, number of research projects, barriers to service delivery, and the availability and hours of a group pain management program. When calculating comparable numbers of referrals seen per effective full-time (EFT) medical staff member, we did not include psychiatry staff because of their inconsistent availability and role of providing secondary consultation liaison activity rather than initial medical assessments.

Quality control included the identification of missing data entries requiring follow-up and the calculation of frequency distributions to identify values beyond the range of expected values. The source of data used by respondents to answer questions was also recorded, to assess quality by asking if the answer had been produced from an organisation’s electronic data capture, service list or data collection, or informed estimation by key personnel.

Services were classified according to region (state; urban [capital city] or provincial [outside capital cities]), funding processes (public [> 90% state or federal]; private [> 90% private health insurance or compensable patients]; or combination [between 10% and 90% public or private funding]), and IASP classification at the time we conducted the project, as follows:

  • Level 1 — multidisciplinary pain (MDP) management centre with several disciplines, education and research;

  • Level 2 — MDP clinic but without research and/or teaching;

  • Level 3 — Pain clinic without multi or interdisciplinary care;

  • Level 4 — Modality orientated clinic that uses a single practice or pain management method (subsequent revisions to these criteria have merged Levels 3 and 4 into a pain practice grouping).14

Statistical analyses

Data collected were collated on a Microsoft Excel (Microsoft Corporation, Redmond, Wash, USA) spreadsheet and further analysed using SPSS Version 18.0.0 (SPSS Inc, Chicago, Ill, USA). Preliminary analysis involved calculating descriptive statistics for each of the core questions using frequencies, medians, and means, depending on the measurement attributes of the responses.

Statistical tests were used to assess effects associated with structural factors on waiting times, number of patients attending clinics, and clinic IASP classification. The structural factors were clinic attributes likely to influence service provision, including funding source (private and public funding mix as categories or proportions), geographic location (urban or provincial) and service model (clinic IASP classifications). Analyses of variance and t tests were used to assess the effects of structural factors on patient numbers in relation to EFT medical staff. We used Mann–Whitney U or Kruskal–Wallis tests to test for the effects of structural factors on waiting times because of the skewed distribution of waiting times. χ2 tests were used to assess for differences in the frequency of IASP classifications according to clinic attributes. Pearson correlation coefficients were calculated to assess shared variance between proportional levels of funding (% private) among services with combined sources of funding and waiting times. Findings with a probability of P < 0.05 were considered statistically significant.

Ethics approval

The project was approved by the Human Research Ethics Committee of Melbourne Health (HREC approval number 2008: 119).

Results

Sixty-eight adult persistent pain services were identified and contacted. Two adult services were excluded (because they had fewer than 100 referrals per annum), and six services declined to participate (citing time requirements or service confidentiality), while three services did not respond. Fifty-seven (84%) of those contacted agreed to participate, and their directors were interviewed over the 14 months from 1 December 2008 to 31 January 2010.

Data capture at the 57 services was organisation-electronic at 27, by service list or data collection at 21 and by informed estimation by key personnel at nine. Publicly funded services were more likely to be classified as MDP centres (IASP Level 1) than privately funded services (χ2(3) = 16.5, P < 0.001).

Twenty-two of the 57 participating services (39%) were associated with an acute pain service (PS), five (9%) services incorporated an acute PS, with the remaining 30 (53%) having no affiliation with an acute PS. Twenty-three services (40%) did not have access to inpatient care. Persistent pain management service provision by state, region, type of service, funding and use of pain management programs (PMPs) is described in Box 1.

Waiting times

Median, ranges, and interquartile ranges for waiting time information based on region, funding and IASP classifications are presented in Box 2. Box 3 shows the frequency distribution of waiting times and demonstrates that the distribution was skewed (Shapiro–Wilk statistic, 0.845; P < 0.001). The waiting time for initial assessment for a new persistent pain outpatient referral was less for privately funded services (mean rank, 14.7) than publicly funded (mean rank, 35.7) or combination funded services (mean rank, 35.5; Kruskal–Wallis H(df, 2) = 19.5; P < 0.001).

Nationally, waiting times did not differ between urban and provincial centres (Mann–Whitney U = 252.5; P = 0.7), or based on IASP classification (H(df, 3) = 7.7, P = 0.053). No correlation was found in relation to percentage of public funding and waiting times for the 13 services with a combination of public and private funding (Pearson correlation coefficient r = 0.28; P = 0.3). For the 42 services offering an allied-health-professional-based PMP, the median waiting time was 112.5 days (interquartile range, 56–218 days) compared with 70 days (interquartile range, 30–120 days) for the 12 services without a PMP (U = 385; P = 0.2).

A triage process for the management of urgent referrals, commonly identified as patients with cancer pain, acute neuropathic pain states or high levels of distress, was identified by 47 of the 57 services (83%). Waiting times for these referrals were less than 4 weeks.

Service activity and medical staff levels

Estimates of new outpatient clients assessed annually per reported EFT medical staff member ranged from 299 to 441 between states and from 345 to 365 between urban and provincial services. Mean new patients seen per EFT medical staff member was higher for modality-orientated clinics (IASP Level 4, 708 patients; SD, 438 patients) than pain clinics (IASP Level 3, 402 patients; SD, 307 patients), MDP clinics (IASP Level 2, 387 patients; SD, 264 patients) and MDP centres (IASP Level 1, 260 patients; SD, 167 patients; F(3, 56) = 3.7; P < 0.02). The number of new patients seen per EFT medical staff member was higher for privately funded services (498 patients; SD, 310 patients) compared with publicly funded services (290 patients; SD, 219 patients) or combination (240 patients; SD, 128; F(2, 56) = 5.8, P < 0.005).

Allied-health-professional-based pain management programs

Forty-two (74%) of the 57 services offered a group PMP, 39 of which were offered by IASP Level 1 or 2 services, while nine PMPs were offered by services classified as more than 90% privately funded (involving 16% of services). An additional five services (9%) offered access to individual allied-health therapy. Although the mean total time involved in a group PMP was 69 hours, there was a bimodal distribution with 24 programs involving more than 60 hours. We estimated that 3628 clients per annum started a PMP, with 1335 of these being in a privately funded service.

Interventional procedures

Nationally, an estimated 22 300 minor (eg, epidural steroid injection) and 380 major (eg, spinal cord stimulation) pain-reduction procedures were performed by 50 of the 57 participating services. We found no differences between mean numbers of procedures per service based on funding sources because of the large variability between services (publicly funded, 249.7 procedures; SD, 311; range, 0–1070; privately funded, 591.4 procedures; SD, 1061; range, 0–4530; combined funding sources 434.1 procedures; SD 499; range, 0–1720).

Additional subspecialty services

A range of subspecialty services were identified among the 57 participating adult persistent pain services, including combined addiction and pain service (four services), older person clinic (three), palliative medicine (three), acupuncture (two), dental (two), and spinal (two). Three services identified a funded outreach program whereby their services were available to regional areas, either by telemedicine or visiting multidisciplinary teams.

Education and research

Twenty-five funded pain medicine specialist training positions were reported in 19 services, one of which was in a provincial area. No funded positions were reported in services identified as more than 90% privately funded. One hundred and fifty-five research projects were identified, 52 of which were being undertaken in nine privately funded services.

Paediatric persistent pain services

Three established paediatric persistent pain services were identified (two in New South Wales, one in Victoria), while two services reported having a specialist paediatric service associated with an established adult service (one each in NSW and Victoria). All three established paediatric services were multidisciplinary in nature, associated with tertiary children’s hospitals, and assessed approximately 315 outpatients per year with a waiting time for initial access of 60 days. In Queensland, South Australia and Western Australia, specialised paediatric pain services were in a development or early implementation stage.

Discussion

The Waiting in Pain project provides a snapshot of current specialist pain management services throughout Australia. We have shown a range of service provision characteristics and waiting times, possibly reflecting their stages of development, location, or funding processes. The lack of both national benchmarks for quality and access to multidisciplinary care for patients suffering persistent pain are recognised as problems and are development goals in the National Pain Strategy.7 Our results on waiting times are similar to those reported from Canada, where an estimated 0.15% of the population used persistent pain services (incorporating paediatric services) each year.15 A subsequent analysis of a sample of patients on waiting lists of Canadian pain facilities showed that most report severe pain (scored > 7/10 in severity) with high levels of depression and suicidality.16

Based on our data and the Australian Bureau of Statistics June 2009 estimate of population (17 690 281 people aged > 15 years) for service activity estimations, 0.18% of the population were assessed by an adult persistent pain service.17 Activity rates per head of population are lower for non-capital city services, although many patients from these areas will travel to cities for access to specialist care. A telephone survey of an Australian sample population found high levels of pain-related disability in 27% of the 22% of their participants who reported chronic pain.5 Higher rates of disability were associated with greater use of health care resources and medications, suggesting that about 5% of the population could potentially benefit from access to MDP management services.

Our discussions with directors of specialist paediatric pain services revealed difficulties establishing these services, with subsequent limited capacity. When considering the services of the two states with the largest estimated populations of people aged less than 15 years,17 we estimate that new persistent pain assessments are being made for 0.01%–0.02% of this population; this is consistent with the Canadian assessment of underdeveloped services for this population.18 A moderate waiting time in the setting of low capacity reflects a limited referral base, despite chronic pain being reported as common in children and adolescents.19 Given the strong evidence of multidisciplinary care in reducing pain and disability in children with persistent pain,20 improving access by developing staff and services throughout Australia needs to be a priority.

At the other end of the population spectrum, older people are known to have a higher prevalence of persistent pain,21 yet only a small number of persistent pain services have programs designed for older people; demand for such programs may be expected to increase with the ageing of the population.

A consequence of poor geographical access and prolonged waiting times is a reluctance of general practitioners to refer patients for specialist services. In an analysis of referral patterns of 37 family practitioners in Ontario, the three most frequently cited reasons for referring patients to a pain service were requests for injections, desire for specialist expertise and concern about opioids, whereas long waiting lists, patient preference for other treatments and distance from pain services were the three most prevalent barriers to referral.22 Few of the existing pain services described a process for evaluating rural clients, although this practice may increase following the federal government’s 2011 Medicare-based initiative to support telemedicine.23

Participation and data quality can be limitations of surveys of this type. Although we had a high rate of participation among the multidisciplinary services we identified, we did not assess the significant services provided by single specialists, GPs with an interest in pain management, and other speciality areas that may provide pain management (eg, rheumatology). In terms of data quality, fewer than half of the persistent pain management services we surveyed had data that were systematically and electronically captured by their supporting organisation; data collection may improve if waiting times for outpatient services are part of mandatory reporting data within activity-based funding agreements. In addition, our questionnaire was not assessed for reliability or validity. Since we completed this project, a number of developments have targeted access issues at a local level. These include the plan initiated by the Queensland Government to develop regional pain management services, the introduction of a “preclinic” self-management education program by the Freemantle pain management service24 and a process of engagement with community-based services initiated in the Hunter region of NSW, with a subsequent reduction in waiting times for MDP service assessment.25 Given that excessive waiting in pain is associated with worsening health, that early access to pain management improves outcomes, and that the Australian population is ageing, greater national political support to improve access to pain management services is required.

1 Data on persistent pain management services relative to the Australian adult population, state, region, type of service, funding and use of pain management programs (PMPs)

State or region

Adult population*

Patients seen by pain management services

Total pain management services

International Association for the Study of Pain classification level


Funding


Pain management services with PMPs

1

2

3

4

> 90% Public

> 90% Private

Combined


National

17 690 281

31 779 (0.180%)

57

26 (46%)

19 (33%)

9 (16%)

3 (5%)

26 (46%)

18 (32%)

13 (23%)

42 (74%)

SA

1 331 103

2 418 (0.182%)

4 (7%)

2 (50%)

1 (25%)

1 (25%)

0

2 (50%)

1 (25%)

1 (25%)

2 (50%)

Vic

4 418 814

7 393 (0.167%)

16 (28%)

5 (31%)

7 (44%)

3 (19%)

1 (6%)

6 (38%)

4 (25%)

6 (38%)

10 (63%)

Tas

405 048

1 100 (0.272%)

2 (4%)

1 (50%)

0

1 (50%)

0

1 (50%)

1 (50%)

0

1 (50%)

NSW

5 756 530

8 348 (0.145%)

17 (30%)

11 (65%)

4 (24%)

2 (12%)

0

9 (53%)

4 (24%)

4 (24%)

14 (82%)

ACT

286 171

1 427 (0.499%)

3 (5%)

2 (67%)

1 (33%)

0

0

1 (33%)

2 (68%)

0

3 (100%)

Qld

3 520 239

2 772 (0.079%)

8 (14%)

2 (25%)

4 (50%)

1 (13%)

1 (13%)

3 (38%)

3 (38%)

2 (25%)

6 (75%)

NT

171 991

321 (0.187%)

2 (4%)

0

1 (50%)

0

1 (50%)

1 (50%)

1 (50%)

0

2 (100%)

WA

1 798 369

3 400 (0.189%)

5 (9%)

3 (60%)

1 (20%)

1 (20%)

0

3 (60%)

2 (40%)

0

4 (80%)

Region

Urban

13 687 640

23 310 (0.170%)*

47 (82.5%)

24 (51%)

14 (25%)

6 (13%)

3 (6%)

22 (47%)

17 (36%)

8 (17%)

33 (70%)

Provincial

8 187 280

3 649 (0.045%)*

10 (17.5%)

2 (20%)

5 (50%)

3 (30%)

0

4 (40%)

1 (10%)

5 (50%)

9 (90%)

ACT = Australian Capital Territory. NSW = New South Wales. NT = Northern Territory. Qld = Queensland. SA = South Australia. Tas = Tasmania. Vic = Victoria. WA = Western Australia. * Population aged over 15 years except for region (urban/provincial) data. Classification: Level 1 — multidisciplinary pain (MDP) management centre with several disciplines, education and research; Level 2 — MDP Clinic, but without research and/or teaching; Level 3 — pain clinic without multidisciplinary or interdisciplinary care; Level 4 — modality-orientated clinic using a single practice or pain management method. Urban refers to population of capital cities, and provincial refers to population outside capital cities.

2 Waiting times for initial assessment for a non-urgent adult outpatient referral to a persistent pain service

Total pain management services

Waiting time (days)


Median

Range

Interquartile range


National

57

103

10–575

44–210

SA

4

180

42–420

69–366

Vic

16

112.3

25–370

63–173

Tas

2

120

30–210

NSW

17

70

14–365

43–230

ACT

3

70

10–241

Qld

8

105

30–575

38–343

NT

2

106

14–120

WA

5

56

21–365

33–258

Region*

Urban

47

103

14–575

42–210

Provincial

10

120

21–365

55–204

Funding

Public > 90%

26

150

34–575

68–281

Private > 90%

18

38.5

10–120

24–75

Combination

13

160

21–420

66–340

International Association for the Study of Pain classification

Level 1

26

150

56–420

68–250

Level 2

19

90

10–575

25–210

Level 3

9

45

14–365

30–135

Level 4

3

30

14–90


ACT = Australian Capital Territory. NSW = New South Wales. NT = Northern Territory. Qld = Queensland. SA = South Australia. Tas = Tasmania. Vic = Victoria. WA = Western Australia. * Urban refers to population of capital cities, and provincial refers to population outside capital cities. Classification: Level 1 — multidisciplinary pain (MDP) management centre with several disciplines, education and research; Level 2 — MDP Clinic, but without research and/or teaching; Level 3 — pain clinic without multidisciplinary or interdisciplinary care; Level 4 — modality-orientated clinic using a single practice or pain management method.

3 Waiting time for access to the 57 participating adult persistent pain management services in Australia

Received 
23 Jan 2012
accepted 
5 Mar 2012
Malcolm N Hogg, MB BS, GrDip(PM), FFPANZCA, Head of Pain Services,1 and Vice President2
Stephen Gibson, BBSc, PhD, Deputy Director,3 and Immediate Past President2
Amal Helou, BHlthSc(Nursing), MM(PM), Nurse Practitioner4
Jacklyn DeGabriele, BHlthSc(Nursing), GrDip(Midwifery), Acute Pain Nurse5
Michael J Farrell, BAppSc(Phty), MSc(Gerontology), PhD, Senior Research Fellow6
1 Department of Anaesthesia and Pain Management, Royal Melbourne Hospital, Melbourne, VIC.
2 Australian Pain Society, Sydney, NSW.
3 National Ageing Research Institute, Melbourne, VIC.
4 Pain Management Unit, Royal Prince Alfred Hospital, Sydney, NSW.
5 Royal Women’s Hospital, Melbourne, VIC.
6 Florey Neurosciences Institute, Melbourne, VIC.
Correspondence: 
Acknowledgements: 
We, on behalf of the APS, thank all the participating services. Jacklyn DeGabriele’s participation was supported by a grant from the APS and the Department of Anaesthesia and Pain Management, Royal Melbourne Hospital.
Competing interests: 
Malcolm Hogg and his employer have received honoraria for GP education services and advisory board participation from Mundipharma and Janssen-Cilag. The APS receives sponsorship for its Annual Scientific Meeting and Research Scholarship Program from a range of pharmaceutical and medical device companies. These include Mundipharma, Janssen-Cilag, Pfizer Australia, and Medtronic Australasia.
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