Will the NHS continue to function in an influenza pandemic? a survey of healthcare workers in the West Midlands, UK

Table 1 Survey response rates by occupational category and analysis of non-response bias (age, gender)

Job category	Surveys sent	Number returned	Response rate (%)	Non-response bias, gender*	Non-response bias, age group
Doctors	500	122	24.4	X² = 0.03; p = 0.863	X² = 4.38; p = 0.223
Nurses	300	134	44.7	X² = 0.03; p = 0.863	X² = 6.13; p = 0.106
Professions Allied to Medicine (PAM)	300	149	49.7	X² = 0.32; p = 0.572	X² = 6.29; p = 0.098
Ancillary	500	179	35.8	X² = 1.09; p = 0.297	X² = 4.04; p = 0.257
Manager	300	151	50.3	X² = 0.02; p = 0.888	X² = 4.82; p = 0.186
GP	600	141	23.5	No data	No data
Community HCW	500	156	31.2	X² = 0.49; p = 0.484	X² = 3.77; p = 0.287
All respondents	3000	1032	34.4	X² = 1.98; p = 0.159	X² = 3.77; p = 0.287

* Information on the gender and age group of survey recipients was not provided on the database of GPs supplied by the PCT

ISSN: 1471-2458