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The SAS (Self-Rating Anxiety Scale) Explained: Score Interpretation and Anxiety-Specific Considerations

Zung's companion instrument to the SDS assesses anxiety symptoms. Understanding the structure matters for appropriate response.

Quick Answer

The SAS is a 20-item self-rated anxiety screen scored 25–100 with cutoffs: <45 normal, 45–59 mild-to-moderate, 60–74 marked-to-severe, 75+ extreme. It captures general anxiety symptoms but does not differentiate between generalized anxiety disorder, panic disorder, social anxiety, and specific phobias — clinical follow-up for elevated scores should include differential assessment.

Key Takeaways

  • ·SAS = Self-Rating Anxiety Scale, Zung, 1971 (companion instrument to SDS)
  • ·20 items covering affective, cognitive, and somatic anxiety symptoms
  • ·Cutoffs: <45 normal, 45–59 mild-to-moderate, 60–74 marked-to-severe, 75+ extreme
  • ·Heavier somatic emphasis than some other anxiety scales — good for physical-symptom-dominant anxiety presentations
  • ·Does not differentiate anxiety types (GAD vs panic vs social vs specific) — clinical assessment needed for differential
  • ·Not a diagnostic instrument; a flagging score prompts clinical evaluation

What the SAS items cover

The 20 items emphasize physical manifestations of anxiety more than some competing scales. Symptom clusters: **Cognitive-affective (5 items)**: nervousness, fear, impending doom, trembling, apprehension **Autonomic (8 items)**: face flushed, heart palpitations, fainting feeling, difficulty breathing, hand tingling, stomach distress, frequent urination, sweating **Motor (3 items)**: trembling, restlessness, weakness **Cognitive (4 items)**: concentration difficulty, nightmares, easily upset, insomnia Response scale is identical to SDS: "A little of the time" / "Some of the time" / "Good part of the time" / "Most of the time." Positive-worded items are reverse-scored. The somatic emphasis makes SAS particularly useful for populations whose anxiety presents physically — people who report "I don't feel anxious but my body does." Common in cultures where emotional expression is muted (see cultural-validity-tests article) and in people whose anxiety has been physiologically internalized.

Interpreting your score

**Below 45 (Normal)**: symptoms at non-pathological baseline. Occasional endorsement of individual items is compatible with this range; most people endorse at least some items occasionally. **45–59 (Mild to moderate anxiety)**: sub-clinical to mild clinical anxiety. Life-stress, transitions, caffeine, sleep deprivation can produce this range without indicating clinical disorder. Monitor over 2–4 weeks. **60–74 (Marked to severe anxiety)**: likely clinical-level anxiety disorder. Clinical consultation warranted. **75+ (Extreme anxiety)**: severe clinical anxiety; urgent clinical consultation recommended. As with SDS, these are approximate cutoffs. Individual clinicians may interpret with adjustment.

Why SAS doesn't distinguish anxiety types

A single score does not tell you which anxiety pattern you have. The DSM-5 recognizes multiple anxiety disorders, each with distinct features: **Generalized Anxiety Disorder (GAD)**: persistent excessive worry about multiple concerns; physical symptoms (restlessness, fatigue, muscle tension). **Panic Disorder**: recurrent panic attacks with persistent fear of more attacks; physical symptoms during episodes are extreme. **Social Anxiety Disorder**: anxiety specifically in social / performance situations; fear of negative evaluation. **Specific Phobia**: marked fear of specific object or situation (heights, enclosed spaces, specific animals). **Agoraphobia**: anxiety about situations from which escape is difficult. **Separation Anxiety Disorder (adult)**: developmentally inappropriate concern about separation from attachment figures. The SAS captures anxiety-symptom intensity but not which of these (or which combination) is present. A 70 score could be severe GAD, frequent panic attacks, or crippling social anxiety — the treatment implications differ. Clinical assessment for elevated SAS should include differential questions about the pattern and context of anxiety, not just its severity.

What elevated SAS often responds to

Different anxiety patterns respond to different interventions: **GAD**: cognitive-behavioral therapy, especially CBT targeting worry; SSRIs (sertraline, escitalopram) are first-line pharmacological; mindfulness-based approaches have substantial evidence. **Panic Disorder**: CBT with interoceptive exposure (exposing self to physical sensations that trigger panic), or SSRIs, often with short-term benzodiazepines bridging initial treatment phase. **Social Anxiety**: CBT with social exposure (gradually confronting avoided social situations); SSRIs; in some cases beta-blockers for performance anxiety specifically. **Specific Phobia**: exposure therapy (typically most effective intervention across anxiety types). **Meditation for anxiety**: evidence is strongest for mindfulness-based stress reduction (MBSR) for GAD; less clear for panic disorder (where meditation can occasionally trigger panic in susceptible practitioners); mixed for social anxiety. Do not select treatment based on SAS score alone. The pattern identification is more important than the severity score.

Anxiety and meditation: a specific caution

Meditation is frequently recommended for anxiety. It helps many people substantially. It also has specific risks for certain anxiety presentations. **Generalized anxiety**: generally responds well to mindfulness practice. Safe starting point: MBSR 8-week course. **Panic disorder**: specific risk. Attending to bodily sensations (ānāpānasati) can trigger panic attacks in susceptible individuals. If you have panic disorder, avoid extended silent retreats until condition is stabilized; start with guided meditation with a trauma-informed teacher; monitor closely. **Social anxiety**: generally meditation-safe, though group meditation contexts (sesshin, zendo practice) can be anxiety-inducing initially. Start with solo practice or online group practice. **PTSD and trauma-related anxiety**: specific protocol needed. Trauma-sensitive mindfulness (David Treleaven's work) explicitly addresses this. Standard meditation can destabilize PTSD patients; trauma-informed modifications are essential. If you have elevated SAS AND suspect panic, trauma, or dissociation, seek clinical assessment before beginning or continuing meditation intensively. Meditation and appropriate clinical treatment are complements, not alternatives.

FAQ

Q: My SDS and SAS are both elevated — is one primary?
Depression and anxiety co-occur in roughly 60% of diagnosed cases. If both scales are elevated, that's consistent with either comorbid condition or with a mixed anxiety-depressive presentation. Clinical assessment disentangles these. Treatment often addresses both simultaneously.
Q: Is SAS better than GAD-7?
Different. GAD-7 (Spitzer et al., 2006) is shorter (7 items), more focused on GAD specifically, maps more directly to DSM criteria. SAS is broader (20 items), captures physical symptoms better, includes items relevant to multiple anxiety disorders. For generalized anxiety specifically, GAD-7 is the current first choice. For comprehensive anxiety screening, SAS is valuable.
Q: Can my SAS score change rapidly?
Yes — anxiety scores are more temporally variable than depression scores. Stress, sleep, caffeine, caffeine withdrawal, medication changes all produce significant short-term fluctuations. A single elevated SAS during a stressful week means less than sustained elevation across multiple administrations over weeks.
Q: Should I be worried if only the somatic items are elevated?
Somatic-only elevation can indicate either (a) anxiety presenting physically, (b) actual physical conditions (hyperthyroidism, arrhythmia, panic physiology without subjective anxiety awareness), or (c) both. Medical workup is warranted for somatic-dominant presentations to rule out physical causes before assuming pure anxiety.

Related Reading

The SAS (Self-Rating Anxiety Scale) Explained: Score Interpretation and Anxiety-Specific Considerations - PsyZenLab - Psychology Testing Lab