What is the Dizziness Handicap Inventory (DHI)?

The DHI is a validated 25-question assessment tool that measures how dizziness affects your daily life across three areas: Physical (7 questions), Emotional (9 questions), and Functional (9 questions).

How is the DHI score calculated?

Each question is scored as: Yes = 4 points, Sometimes = 2 points, No = 0 points. The total score ranges from 0-100, with higher scores indicating greater handicap from dizziness.

What do DHI scores mean?

DHI scores are interpreted as: 0-30 = Mild handicap, 31-60 = Moderate handicap, 61-100 = Severe handicap. These ranges help healthcare providers understand the impact of dizziness on your quality of life.

Is this calculator free to use?

Yes, our DHI calculator is completely free to use. No registration or personal information is required, and your responses are not stored or tracked.

Accessibility Statement

Our commitment to making our tools accessible to everyone

Our Commitment: We are committed to ensuring that our website and assessment tools are accessible to all users, including those with disabilities. We strive to meet or exceed WCAG 2.1 AA standards.

Accessibility Standards

We aim to conform to the Web Content Accessibility Guidelines (WCAG) 2.1 at the AA level. These guidelines explain how to make web content more accessible for people with disabilities and user-friendly for everyone.

Our accessibility goals include:

• Ensuring all users can perceive, understand, navigate, and interact with our tools
• Providing equal access to information and functionality
• Supporting assistive technologies and adaptive strategies
• Maintaining compatibility with screen readers and other accessibility tools

Visual Accessibility Features

High Contrast Design

Our website uses high contrast colors to ensure text and interactive elements are easily distinguishable from backgrounds, meeting WCAG contrast ratio requirements.

Scalable Text

All text can be resized up to 200% without loss of functionality or content. Use your browser's zoom feature or adjust font size settings.

Clear Visual Hierarchy

We use proper heading structures, consistent layouts, and clear visual indicators to help users navigate and understand content organization.

Alternative Text

All meaningful images include descriptive alternative text for screen readers. Decorative images are marked appropriately to avoid unnecessary announcements.

Keyboard Navigation

Full Keyboard Support

All interactive elements can be accessed and operated using only a keyboard. This includes our assessment tools, navigation menus, and form controls.

Visible Focus Indicators

Clear visual indicators show which element currently has keyboard focus, making navigation easier for keyboard users.

Logical Tab Order

Tab navigation follows a logical sequence through page content and interactive elements, matching the visual layout and reading order.

Keyboard Shortcuts

• Tab: Move to next interactive element
• Shift + Tab: Move to previous interactive element
• Enter/Space: Activate buttons and links
• Arrow keys: Navigate within radio button groups

Screen Reader Support

Semantic HTML

We use proper HTML elements and ARIA labels to ensure screen readers can accurately interpret and announce page content and functionality.

Form Labels

All form controls have clear, descriptive labels that are properly associated with their respective input fields for screen reader users.

Status Announcements

Important status changes, such as calculation results or form validation messages, are announced to screen reader users through ARIA live regions.

Tested Compatibility

Our website has been tested with popular screen readers including NVDA, JAWS, and VoiceOver to ensure compatibility and usability.

Feedback and Assistance

We welcome your feedback on the accessibility of our website. If you encounter any accessibility barriers or have suggestions for improvement, please contact us:

Email: accessibility@dhicalculator.com
Response Time: We aim to respond to accessibility inquiries within 2 business days.

We take accessibility feedback seriously and will work to address any issues promptly. Your input helps us improve the experience for all users.

Ongoing Improvements

Accessibility is an ongoing effort. We regularly review and update our website to ensure it remains accessible and usable for all visitors. Our commitment includes:

• Regular accessibility audits and testing
• Staff training on accessibility best practices
• Incorporating user feedback into design decisions
• Staying current with accessibility standards and guidelines
• Testing with real users who rely on assistive technologies

This accessibility statement was last updated on December 2024.