Neck Disability Index (NDI)

Calculates the Neck Disability Index (NDI) from 10 sections (pain intensity, personal care, lifting, reading, headaches, concentration, work, driving, sleeping, recreation), each scored 0–5. Total 0–50. Mild disability 0–8 (0–16%), moderate 10–28 (20–56%), severe 30–38 (60–76%), complete 40–50 (80–100%).

Weight
Height
Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Calculates the Neck Disability Index (NDI) from 10 sections (pain intensity, personal care, lifting, reading, headaches, concentration, work, driving, sleeping, recreation), each scored 0–5. Total 0–50. Mild disability 0–8 (0–16%), moderate 10–28 (20–56%), severe 30–38 (60–76%), complete 40–50 (80–100%)

Each component has a specific meaning:

  • 10 sections (pain intensity — The 10 sections (pain intensity recorded for the scenario being assessed.
  • Personal care — The personal care recorded for the scenario being assessed.
  • Lifting — The lifting recorded for the scenario being assessed.
  • Reading — The reading recorded for the scenario being assessed.
  • Headaches — The headaches recorded for the scenario being assessed.
  • Concentration — The concentration recorded for the scenario being assessed.

Note: Interpret the neck disability index result against the thresholds and context described above.

How to Use

Enter the 10 sections (pain intensity, personal care, lifting, reading, headaches, concentration for the scenario you are assessing. Calculates the Neck Disability Index (NDI) from 10 sections (pain intensity, personal care, lifting, reading, headaches, concentration, work, driving, sleeping, recreation), each scored 0–5. Total 0–50. Mild disability 0–8 (0–16%), moderate 10–28 (20–56%), severe 30–38 (60–76%), complete 40–50 (80–100%). Use the neck disability index result to inform your calculation.

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Frequently Asked Questions