Official results will be released in a December summary report showing that the Ph.D. total is down 4.5 percent from an all-time high in 1998, with 40,744 degrees being awarded in 2001 in relation to 42,654 given out in 1998.
The study usually shows fluctuations of about 1 percent from year to year, said SED Institutional Coordinator Jamie Friedman.
A more pressing concern is a drop in the number of science and engineering doctorates being awarded, said Debra Stewart, president of the Council of Graduate Schools.
Total degrees given in these fields has dropped 6.5 percent since 1998.
"These numbers go up and down," she said. "What we're really concerned about is the fact that science and engineering (numbers) are down."
But Stewart said the concern is moderated by steadily increasing enrollment in both types of graduate programs -- master's and doctoral.
Enrollment in graduate programs seems to have an inverse relationship with the state of the economy, she said.
Stewart also said that over the next few years, the growing number of students enrolled in master's programs will graduate and likely will enroll in doctoral programs.
The number of doctoral degree holders should spike again within the next few years as a result, she said.