Under-30s are no longer attracted into IT, and employment in the industry may still be a "buyer's market", reports the Computer Staff Salary Survey 2000.
According to the research, which is produced twice yearly by Computer Economics Ltd and Remuneration Economics (CELRE), only 27.1% of people covered by the current survey are under the age of 30, compared to 43% a decade ago.
The survey also notes that the national resignation rate, at 7.6 %, is the lowest since 1994, and "well down" on the 13% recorded in November 1997.
As might be expected, inner London recorded a higher rate of resignations than the rest of the UK - 11.2 % compared to 6% - while developers were found to leave their jobs approximately twice as often as those in management positions.
Unsurprisingly, the research findings also reveal that resignation rates tend to decline as IT staff progress towards retirement, and that the rate of increase in earnings follows the same pattern.
The Computer Staff Salary Survey is produced every May and November and acts largely as an analysis of the IT market place (looking at salaries, earnings and fringe benefits) for UK employers who subscribe to the service.
For its research, CEL says it samples more than 40,000 workers in the industry and analyses the results according to region, function, company size, qualifications, age, gender, experience, key skills and so on. The current survey also includes, for the first time, a comparison of national and Scottish salary figures across function groups such as systems development, technical support and administration management.