thymia Documentation

Apollo results must be reviewed and interpreted by a qualified healthcare professional. They must not be communicated directly to patients without clinical review, and must not be used as a substitute for clinical judgement.

Results structure

1 {
2   "results": {
3     "disorders": {
4       "depression": { "probability": 0.61, "severity": 0.58 },
5       "anxiety": { "probability": 0.47, "severity": 0.44 }
6     },
7     "symptoms": {
8       "depression": {
9         "anhedonia": {
10           "severity": 0.54,
11           "distribution": {
12             "none": 0.18, "mild": 0.31,
13             "moderate": 0.28, "severe": 0.23
14           }
15         }
16       },
17       "anxiety": {
18         "nervousness": {
19           "severity": 0.48,
20           "distribution": {
21             "none": 0.26, "mild": 0.28,
22             "moderate": 0.22, "severe": 0.24
23           }
24         }
25       }
26     }
27   }
28 }

Disorder-level scores

Score	Description
`probability`	Likelihood the patient meets the diagnostic threshold, expressed as a value between 0 and 1
`severity`	Overall severity of the disorder if present, expressed as a value between 0 and 1

Disorder	Field	Clinical reference
Major depression	`depression`	Benchmarked against PHQ-9 gold standard
Generalised anxiety disorder	`anxiety`	Benchmarked against GAD-7 gold standard

Probability range	Clinical indication
`0.0 – 0.3`	Low likelihood — below diagnostic threshold
`0.3 – 0.5`	Borderline — further assessment recommended
`0.5 – 0.7`	Moderate likelihood — consistent with clinical presentation
`0.7 – 1.0`	High likelihood — strongly consistent with diagnosis

Apollo probability scores are not diagnostic. They are intended to support clinical decision-making alongside other clinical information. Final diagnosis must be made by a qualified healthcare professional.

Symptom-level scores

Field	Description
`severity`	Overall severity of the symptom, expressed as a continuous value between 0 and 1
`distribution`	Estimated probability across `none`, `mild`, `moderate`, `severe` categories. Values sum to 1.

Depression symptoms

Symptom	Field name	DSM-V criterion
Anhedonia	`anhedonia`	Loss of interest or pleasure
Low mood	`lowmood`	Depressed mood
Sleep issues	`sleepissues`	Insomnia or hypersomnia
Low energy	`lowenergy`	Fatigue or loss of energy
Appetite issues	`appetiteissues`	Changes in weight or appetite
Worthlessness / guilt	`worthlessnessissues`	Feelings of worthlessness or excessive guilt
Concentration difficulties	`concentrationissues`	Diminished ability to think or concentrate
Psychomotor changes	`psychomotorissues`	Psychomotor agitation or retardation

Anxiety symptoms

Symptom	Field name	DSM-V criterion
Nervousness	`nervousness`	Feeling nervous, anxious or on edge
Uncontrollable worry	`uncontrollableworry`	Unable to stop or control worrying
Excessive worry	`excessiveworry`	Worrying too much about different things
Trouble relaxing	`troublerelaxing`	Trouble relaxing
Restlessness	`restlessness`	Being so restless it is hard to sit still
Irritability	`irritability`	Becoming easily annoyed or irritable
Dread	`dread`	Feeling afraid as if something awful might happen

Longitudinal monitoring

For efficacy measurement, we recommend establishing a baseline assessment before treatment begins and tracking changes at regular intervals.

Model version

1 {
2   "model": "apollo-1.0"
3 }

Results generated by different model versions should not be directly compared. thymia will notify integrators in advance of any model version changes. Contact support@thymia.ai for version change notifications.

Responsible use

Apollo is a regulated medical device. The following requirements apply to all clinical deployments:

Results must be reviewed by a qualified healthcare professional before any clinical action is taken.
Results must not be communicated directly to patients without clinical review.
Apollo must not be used as the sole basis for diagnosis or treatment decisions.
Apollo is not validated for use in emergency or crisis situations. If a patient is in crisis, follow your standard emergency protocols.

Interpreting Results