Actigraphy Interpretation Report

Patient: [Full name], DOB: [Date of birth], MRN: [MRN]

Ordering Clinician: [Name, credentials]

Interpreting Clinician: [Name, credentials, facility]

Recording Period: [Start date-time] to [End date-time] [Time zone]; Total duration: [Number] days

Device: [Manufacturer], [Model], [Serial number if tracked]

Software: [Analysis software name and version]; Algorithm: [Scoring algorithm]; Sensitivity: [Setting]

Report Status: [Final / Preliminary]

Note: "Night of [date]" refers to the main sleep period beginning that calendar evening.

Clinical Indication

[Clinical question prompting actigraphy study] (State explicit reason: circadian rhythm disorder characterization, insomnia phenotyping, suspected insufficient sleep syndrome, pre-MSLT/MWT sleep documentation, or other indication.)

• Chief sleep complaint: [Patient-reported complaint] (Include if available.)
• Schedule: [Work/school schedule and shift pattern] (Include if relevant; specify fixed vs rotating.)
• Relevant comorbidities: [Conditions affecting movement or sedentary behavior] (Include only if relevant, e.g., limited mobility, tremor, chronic pain.)
• Relevant medications/substances: [Medications or substances impacting sleep or activity] (Include only if explicitly provided, e.g., hypnotics, stimulants, caffeine timing.)

Study Protocol

Wear protocol: [Sensor location] (Default non-dominant wrist; specify if ankle or waist), 24-hour wear; Planned duration: [Number] days; Actual duration: [Number] days.

• Sleep diary: [Provided, completion rate: [Percentage] / Not provided]
• Event markers (bedtime/wake buttons): [Used consistently / Used inconsistently / Not used]
• Light data: [Analyzed / Not analyzed]

Scoring approach:

• Epoch length: [Number] seconds
• Rest interval definition: [Diary-defined / Marker-defined / Algorithmically inferred / Combined approach]
• Manual edits: [Yes, rationale / No]

Data Quality and Limitations

• Total monitored days: [Number]
• Analyzable main-sleep nights: [Number of number planned]
• Estimated non-wear time: [Duration]
• Coverage: [Weekdays only / Weekends only / Both weekdays and weekends]
• Artifacts/confounders: [Extended device removal / External motion exposure / Travel / Marked immobility / Schedule change mid-study / None observed] (Select all that apply; briefly note impact.)
• Overall data adequacy: [Adequate / Limited study] (If limited, state that interpretation confidence is reduced.)

Guardrail: Actigraphy estimates sleep from movement patterns and may misclassify quiet wakefulness as sleep. Circadian inferences are based on [sleep timing / rest-activity rhythm metrics / light exposure patterns / combination].

Results

Summary of Findings

[Narrative summary of findings] (Provide 3–6 sentences addressing: typical bed and wake times; timing stability vs variability; estimated habitual total sleep time relative to complaint; presence and pattern of daytime naps; whether pattern suggests circadian phase abnormality.)

Aggregate Sleep Metrics

(Report means and variability across the recording period. Use HH:MM for clock times, minutes for durations, percentage for efficiency. Label total sleep time and sleep efficiency as "estimated.")

• Bedtime: Mean [Time]; Variability [SD or IQR]
• Sleep onset time: Mean [Time]; Variability [SD or IQR]
• Wake time: Mean [Time]; Variability [SD or IQR]
• Rise time: Mean [Time]; Variability [SD or IQR]
• Sleep onset latency: Mean [Minutes]; Variability [SD or IQR]
• Wake after sleep onset: Mean [Minutes]; Variability [SD or IQR]
• Estimated total sleep time: Mean [Minutes]; Variability [SD or IQR]
• Time in bed: Mean [Minutes]; Variability [SD or IQR]
• Estimated sleep efficiency: Mean [Percentage]; Variability [SD or IQR]

Naps:

• Average number per day: [Number]
• Mean nap duration: [Minutes]
• Predominant nap timing: [Morning / Afternoon / Evening / Variable]

Weekday vs Weekend: (Include if both captured.)

• Difference in sleep midpoint (social jetlag estimate): [± Minutes]

Night-by-Night Detail

(Include if night-to-night variability is high or data quality issues affected specific nights; otherwise omit.)

• Night of [Date]: Rest interval [Time range]; Estimated TST [Minutes]; Estimated SE [Percentage]; SOL [Minutes]; WASO [Minutes]; Notes: [Artifact, schedule anomaly, or none]
• (Repeat per night as needed.)

Circadian Pattern Characterization

(Include when circadian phenotyping is part of the clinical indication; otherwise omit.)

• Rest-activity pattern: [Consolidated monophasic / Fragmented / Polyphasic]
• Interdaily Stability (IS): [Value] ([Lower / Typical / Higher] vs reference)
• Intradaily Variability (IV): [Value] ([Lower / Typical / Higher] fragmentation)
• Relative Amplitude (RA): [Value] ([Lower / Typical / Higher])
• L5 timing (least active 5h): [Time]; M10 timing (most active 10h): [Time]
• Phase characterization: Findings consistent with [delayed / advanced / irregular / non-24 / normal] sleep-wake phase pattern

Diary vs Actigraphy Comparison

(Include if sleep diary was provided; otherwise state "Sleep diary: Not provided" and omit the comparison details.)

• Estimated TST: Diary minus actigraphy = [± Minutes] ([Diary overestimation / underestimation])
• SOL: Diary minus actigraphy = [± Minutes]
• WASO: Diary minus actigraphy = [± Minutes]
• Estimated sleep efficiency: Diary minus actigraphy = [± Percentage points]
• Bed/wake times: Diary vs actigraphy difference [± Minutes] ([Earlier / Later])
• Interpretation prioritization: [Source prioritized and rationale] (Include if discrepancies were clinically meaningful.)

Interpretation

[Clinical impression directly answering the ordering question] (Synthesize findings into a concise statement. Do not introduce new patient-reported details here.)

• Circadian phenotype: [Delayed / Advanced / Irregular / Non-24 / No circadian abnormality]; [Stability and variability assessment]
• Insomnia phenotype: [Initiation-predominant / Maintenance-predominant / Mixed / Not supported]; [Night-to-night variability and diary–actigraphy discrepancy if applicable]
• Sleep duration phenotype: Estimated habitual sleep appears [insufficient / adequate / prolonged] relative to clinical context.
• Daytime sleep pattern: [Nap characterization] (Comment if pattern suggests sleep debt, irregular scheduling, or possible hypersomnolence.)
• Alternate considerations: [Other etiologies or recommended clarifying tests] (Include if findings suggest alternative diagnoses, e.g., PSG for suspected sleep-disordered breathing, medication review.)

Scope limitation: Actigraphy does not measure sleep stages, respiration, or limb movements. It cannot diagnose conditions requiring physiologic signals (e.g., sleep apnea, periodic limb movement disorder) and is not a substitute for polysomnography when those are suspected.

Recommendations

• Insomnia: [Evidence-based behavioral treatment recommendation] (Recommend CBT-I or brief behavioral interventions; position sleep hygiene as adjunctive only.)
• Circadian phase disorder: [Timed intervention recommendations] (Include consistent wake time, appropriately timed light exposure, evening light reduction. If melatonin considered, note timing and dosing require individualization.)
• Insufficient sleep: Recommend schedule modification to achieve adequate sleep opportunity and follow-up monitoring.
• Diagnostic uncertainty: [Further testing or referral recommendation] (e.g., PSG, HSAT, extended actigraphy, sleep medicine referral.)
• Safety concerns: [Drowsy driving and safety counseling] (Include if marked sleepiness or severely curtailed sleep observed; advise urgent follow-up.)

(Avoid prescriptive medication directives unless the interpreting clinician is the treating provider; otherwise recommend discussion with the treating clinician.)

Signature

Interpreting Clinician: [Signature]

Date/Time: [Date and time of signature]