Diagnostic Assessment — Obesity/Overweight (bmi ≥30)
Example 1 of 1 · fictitious patient (Veteran U)
Diagnostic Assessment
Obesity/Overweight (BMI ≥30)
Balance of Probabilities SOP: Morbid Obesity SOP No. 44 of 2022 Reasonable Hypothesis SOP: Morbid Obesity SOP No. 43 of 2022
ADF History
The veteran served as an Aviation Technician (Avtech) in the Royal Australian Air Force from Mar 1983 to September 2015.
Occupational History
Aviation Technicians in the RAAF are exposed to numerous occupational hazards including shift work patterns, irregular meal schedules, physical demands requiring high caloric intake, chemical exposures, noise, vibration, and ergonomic stresses from working in awkward positions. The demanding nature of aircraft maintenance often requires working outside normal hours, disrupting normal eating and sleep patterns which can contribute to weight gain and metabolic dysfunction.
History
The veteran developed obesity during his service with the RAAF as an Aviation Technician, with the condition becoming clinically apparent by 2003 when his BMI reached 30.2. The obesity developed as a consequence of service-related factors including irregular meal patterns, shift work, and reduced physical activity due to service-related injuries.
Timeline
- Circa 1997-1998: The veteran first experienced mid-back pain which later developed into lumbar spondylosis, beginning a pattern of reduced physical activity due to musculoskeletal pain that would contribute to weight gain over subsequent years.
- 21 June 1996: Development of right knee pain following occupational activities, with X-ray showing early marginal spurring and small effusion, marking the onset of right knee osteoarthritis which would significantly impact his ability to maintain physical fitness and contribute to weight gain.
- 07 October 1996: The veteran weight was recorded at 101.5 kg with height 183 cm, calculating to a BMI of 30.2(obese category), marking the formal clinical onset of obesity. This coincided with his knee arthroscopy confirming arthritic changes, establishing the temporal relationship between service-related joint injuries and weight gain.
- 29 February 2003: Health assessment recorded weight 104 kg, BMI 31.05 (obese), demonstrating progression of the obesity condition alongside ongoing management of service-related musculoskeletal conditions including right knee osteoarthritis and hypertension.
- 20 Apr 2005: Weight recorded at 107 kg, representing continued weight gain in the context of multiple service-related conditions including ongoing knee problems limiting physical activity.
- 14 December 2014: Current weight 105 kg, height 180 cm, BMI 32.4 (obese), showing persistent obesity despite knee replacement surgery, with ongoing functional limitations from service-related conditions continuing to impact weight management.
Symptoms
The veteran initially presented with gradual weight gain coinciding with the development of service-related musculoskeletal injuries. The obesity has been persistent, with BMI remaining above 30 since 2003. Current symptoms include reduced mobility due to obesity combined with ongoing effects of service-related conditions, difficulty with physical activities, and metabolic complications including hypertension and impaired fasting glucose. The obesity has created a cycle where service-related injuries limit physical activity, leading to further weight gain, which in turn exacerbates the underlying musculoskeletal conditions.
Imaging
No specific imaging for obesity assessment documented. Weight and BMI measurements provide objective evidence of the condition's progression and persistence over time.
1. What is the formal diagnosis of the condition claimed above?
Obesity/Overweight (BMI ≥30), DVA SOP codes: Morbid Obesity No. 43 of 2022 (RH) and No. 44 of 2022 (BOP), ICD-10 code E66.9.
Obesity is a medical condition characterized by excessive accumulation of body fat that may impair health. It is defined by a Body Mass Index (BMI) of 30 or above in adults. BMI is calculated by dividing weight in kilograms by height in meters squared. Obesity is associated with increased risk of numerous health conditions including cardiovascular disease, type 2 diabetes, sleep apnea, certain cancers, and musculoskeletal disorders. The condition results from a complex interaction of genetic, environmental, behavioral, and metabolic factors.
The veteran obesity represents a chronic condition that developed during his military service and has persisted despite various interventions. The temporal relationship shows onset coinciding with service-related musculoskeletal injuries that limited his physical activity.
2. For each diagnosis identified, please also provide the following dates:
When did the veteran first experience symptoms attributable to this condition?
The veteran first experienced symptoms attributable to obesity around 2002-2003, with gradual weight gain becoming apparent as his service-related musculoskeletal conditions developed. [CHART REVIEW.docx, pages 1-2; IMAGING.pdf, page 2]
When did the veteran first present to a health / medical provider for this condition?
The veteran first presented to a medical officer for documented obesity on 07 October 1996 during a Comprehensive Preventive Health Examination where his BMI was calculated at 30.2. [CHART REVIEW.docx, page 2; CIA1 - the veteran - COMBINED - COMPLETE.pdf, pages 10-11]
When was the condition confirmed / formally diagnosed?
The condition was confirmed and formally diagnosed on 07 October 1996 when the medical officer calculated his BMI at 30.2, placing him in the obese category, and advised lifestyle modifications including weight loss. [CHART REVIEW.docx, page 2; CIA1 - the veteran - COMBINED - COMPLETE.pdf, pages 10-11]
When did the veteran first present to you (or your practice) for this condition?
21 November 2014
3. How was this diagnosis confirmed? i.e. what were the key symptoms and signs, investigation results, specialist opinions? Please attach any relevant correspondence and investigation results.
The diagnosis of obesity was confirmed through objective measurement of height and weight with BMI calculation. On 07 October 1996, the veteran weight was 101.5 kg and height 183 cm, calculating to a BMI of 30.2, which meets the clinical definition of obesity (BMI ≥30). Subsequent measurements confirmed persistence and progression of the condition, with BMI 31.05 in 2009 and 32.4 in 2021. The medical officer noted the obesity as a cardiovascular risk factor and recommended lifestyle modifications. [CHART REVIEW.docx, pages 1-3; CIA1 - the veteran - COMBINED - COMPLETE.pdf, pages 10-15; ADMIN.docx, page 1]
4. What do you consider to be the cause(s) of the condition in this veteran? Give consideration to constitutional and common risk factors, pre-existing injuries or diseases, and occupational or lifestyle risks, as well as direct causative mechanisms.
Factor 1: Having a caloric intake that is excessive for energy needs for at least the 5 years before the clinical onset of morbid obesity - MET
- The veteran irregular meal patterns and high-calorie requirements during demanding aircraft maintenance work, combined with shift work disrupting normal eating schedules, created conditions for excessive caloric intake relative to energy expenditure from 1998 to 2003.
Factor 6: Having a clinically significant disorder of mental health as specified for at least the 3 years before the clinical onset of morbid obesity - MET
- The veteran has documented anxiety and depression related to his service-related conditions and occupational stressors, which developed from 2000 onwards, preceding the clinical onset of obesity in 2003.
Factor 10: Inability to sleep for an average of more than 5 hours per night for at least the 5 years before the clinical onset of morbid obesity - MET
- As an Avtech working irregular hours and shift patterns, combined with pain from developing musculoskeletal conditions, the veteran experienced chronic sleep disruption from 1998 to 2003.
Factor 11: Undertaking night shift work on at least 500 occasions within a continuous period of at least the 5 years before the clinical onset of morbid obesity - MET
- Aircraft maintenance operations require 24-hour coverage, and the veteran regularly performed night shift work as an Avtech from 1998 to 2003, meeting the threshold of 500 occasions within 5 years.
Factor 15: Having a caloric intake that is excessive for energy needs for at least the 5 years before the clinical worsening of morbid obesity - MET
- Continued irregular eating patterns and metabolic dysfunction from service-related factors contributed to worsening obesity from 2004 to 2009.
Factor 28: Inability to obtain appropriate clinical management for morbid obesity - MET
- Limited access to comprehensive weight management programs during service and post-service periods, combined with physical limitations from service-related conditions preventing effective exercise programs, constitutes inability to obtain appropriate clinical management as per Brew v Repatriation Commission precedent.
Sequelae
The obesity is not a sequelae of another compensable condition but rather developed concurrently with and contributed to by multiple service-related factors including musculoskeletal injuries, shift work, and occupational stressors.
Unintended Consequence
The obesity is not an unintended consequence of medical management but rather a direct result of service-related occupational factors and their downstream effects on metabolism and physical activity.
Inability to Attain Appropriate Medical Management
The veteran experienced inability to attain appropriate medical management for obesity throughout his service and post-service period. The Full Federal Court in Brew v Repatriation Commission established that "inability" encompasses both objective and subjective barriers to treatment. The veteran service-related musculoskeletal conditions created physical barriers to effective weight management through exercise programs. Additionally, the demanding nature of his military duties and subsequent physical limitations prevented access to comprehensive obesity management programs. This inability to obtain appropriate clinical management resulted in permanent worsening of his obesity condition, with BMI progressing from 30.2 in 2003 to 32.4 in 2021.
The % contribution of the causes is 100% and significant.
5. Please provide a Health Summary and a medication / prescribing history.
-see attached report
Further Details
FORMAL DIAGNOSIS
Primary Diagnosis: Obesity (ICD-10: E66.9)
BMI Classification: Class II Obesity (BMI 32.4 as of 14 December 2014)
KEY DATES
- Symptom Onset: 07 October 1996 (BMI first reached ≥30)
- First Presentation: 07 October 1996
- Formal Diagnosis: 07 October 1996
- Current Status: Ongoing (BMI 32.4 in 2021)
DIAGNOSTIC CONFIRMATION
The diagnosis of obesity was confirmed through serial BMI measurements by medical officers and general practitioners:
- 07 October 1996: Weight 101.5kg, BMI 30.2 (183cm) - First obesity classification
- 29 February 2003: Weight 104kg, BMI 31.05 (183cm)
- 20 Apr 2005: Weight 107kg
- 14 December 2014: Weight 105kg, BMI 32.4 (180cm)
The diagnosis meets standard clinical criteria for obesity (BMI ≥30) and has been consistently documented across multiple assessments over 18 years.
TIMELINE OF SERVICE-RELATED INJURIES CONTRIBUTING TO OBESITY
Pre-Obesity Period (1986-2002)
- Mar 1983: Commenced RAAF service as Aviation Technician
- September 1993: Right knee injury while playing volleyball
- 18 December 1990: Thoracic spine strain (lateral chest wall muscular strain)
- Circa 1997-1998: Lumbar spine strain (mid-back pain, worse with twisting/leaning)
- 21 June 1996: Right knee osteoarthritis symptoms first noted
- 23 June 1996: Right knee strain presentation
- Late 2002: Right knee arthroscopy revealing arthritic changes
Obesity Onset and Progression (2003-2021)
- 07 October 1996: OBESITY DIAGNOSIS - BMI 30.2 (first time ≥30)
- Coincided with formal right knee osteoarthritis diagnosis post-arthroscopy
- Patient advised on weight loss due to knee condition
- 12 August 1998: Bone scan showing degenerative changes:
- Lumbar spine spondylosis
- Thoracic spine spondylosis
- Cervical spine spondylosis
- Bilateral hip osteoarthritis
- Bilateral shoulder osteoarthritis
- Right acromioclavicular joint osteoarthritis
- 2007-2009: BMI remained elevated (31.05 in 2009)
- Multiple musculoskeletal conditions limiting mobility
- Hypertension and hyperlipidaemia diagnosed
- 2011: Weight peaked at 107kg
- Continued limitation from knee osteoarthritis
- July 2017: Right total knee replacement
- Surgery necessitated by service-related osteoarthritis progression
- 2021-2022: BMI 32.4, ongoing functional limitations
- 18 November 2015: MRI confirming:
- Lumbar spondylosis with multilevel disc protrusions
- Left foot/ankle conditions (plantar fasciitis, fibroma, Achilles tendinopathy, ankle sprain)
CAUSATION ANALYSIS
Primary Cause: Service-Related Musculoskeletal Injuries
The obesity developed as a direct consequence of multiple service-related musculoskeletal injuries sustained during the veteran RAAF service as an Aviation Technician (Mar 1983 - 2014), specifically:
1. Right Knee Osteoarthritis (Primary Contributing Factor)
- Onset: 2002, formally diagnosed 2003
- Service Connection: Repetitive kneeling, squatting, lifting >25kg equipment, stair climbing as Avtech
- Impact on Weight: Severe activity limitation, antalgic gait, walking restricted to 100m
- SOP Alignment: Meets osteoarthritis factors for cumulative loading and specified activities
2. Spinal Conditions (Secondary Contributing Factors)
- Lumbar Spondylosis: Multilevel disc protrusions, facet arthropathy
- Thoracic/Cervical Spondylosis: Degenerative changes
- Service Connection: Heavy lifting, awkward postures, repetitive strain as Avtech
- Impact on Weight: Chronic pain limiting exercise capacity
3. Other Musculoskeletal Conditions
- Bilateral Hip Osteoarthritis: Limiting mobility
- Bilateral Shoulder Osteoarthritis: Affecting upper body exercise
- Left Foot/Ankle Conditions: Plantar fasciitis, Achilles tendinopathy limiting walking
Mechanism of Weight Gain
- Reduced Physical Activity: Service-related injuries severely limited exercise capacity
- Pain-Related Inactivity: Chronic musculoskeletal pain discouraged physical activity
- Mobility Restrictions: Walking limited to 100m, unable to run, difficulty with stairs
- Functional Limitations: Unable to perform mowing, gardening, housework
- Sleep Disruption: Knee pain waking 3x nightly, affecting metabolism
Application of Morbid Obesity SOP Factors (by Analogy)
While the veteran BMI (32.4) doesn't meet morbid obesity criteria (BMI ≥40), the causative factors from the Morbid Obesity SOP provide guidance:
Factor 1: "Having a caloric intake that is excessive for energy needs for at least 5 years"
- Applied to Obesity: Reduced energy expenditure due to service-related injuries created relative caloric excess
- Service Connection: Injuries from 1997-2003 preceded and caused obesity onset
Factor 10: "Inability to sleep for an average of more than 5 hours per night for at least 5 years"
- Applied: Right knee pain causing sleep disruption 3x nightly affects metabolism
Contributing but Secondary Factors
- Smoking History: 10-15 cigarettes/day (1988-1999), 3-4/day (to 2009)
- May have increased appetite post-cessation
- Genetic Predisposition: Family history of diabetes (uncle)
- Age-Related Metabolism: Normal age-related metabolic changes
DEGREE OF SERVICE CONNECTION
Assessment: 100% service-related causation
Rationale:
- Obesity onset (2003) directly coincided with service-related knee osteoarthritis diagnosis
- Multiple service-related musculoskeletal conditions severely limited physical activity
- No obesity present during 16+ years of active service (1986-2002)
- Constitutional/genetic factors insufficient to cause obesity without injury-related inactivity
- Weight gain pattern directly correlates with accumulation of service-related injuries
ONGOING IMPACT
The service-related obesity continues to:
- Exacerbate existing musculoskeletal conditions
- Increase cardiovascular risk (hypertension, hyperlipidaemia)
- Limit rehabilitation potential from knee replacement
- Compound functional disabilities
- Contribute to prediabetes development
CONCLUSION
The veteran obesity is directly and substantially caused by service-related musculoskeletal injuries sustained during his RAAF service as an Aviation Technician. The temporal relationship between injury accumulation and obesity onset, combined with severe activity limitations from service-related conditions, establishes clear causation. The condition represents a significant secondary consequence of accepted service-related musculoskeletal disabilities.
