Table 4.

Overall mean quality score, and mean domain scores of audited web sites on immunisation

	Mean standardised quality score* of individual domains of scoring system						Overall standardised score** (n/100)
Domain:	1. Mission of Site (n/100)	2. Disclosure of ownership (n/100)	3. Transparency of Sponsorship (n/100)	4. Accountability to users (n/100)	5. Quality of information (n/100)	6. Quantity of information (n/100)
Mean:	73	57	57	72	53	58	58

*Standardised domain quality score calculated as: (total number of items present)/(total number of items in domain – total number of items not applicable in that domain for that web site) × 100

**Overall standardised score calculated as: (total number of items present)/(43 – total number of items not applicable for that web site) × 100