The phrase "a substantial number of programs" is correct and usable in written English.
You can use it when referring to a significant quantity of programs in various contexts, such as education, software, or initiatives.
Example: "The university offers a substantial number of programs to cater to diverse student interests and career goals."
Alternatives: "a considerable amount of programs" or "a significant number of programs."
However, a substantial number of adults born before the program was introduced had no protective diphtheria antibody levels.
Although uptake of the Healthy Baby program in Manitoba is greater for women in groups at risk for poorer perinatal outcomes, a substantial number of women eligible for this program are not receiving it; efforts to reach these women should be enhanced.
One of the Bloomberg administration's signature antipoverty initiatives has come under fire from advocates for the homeless, who say the city has exaggerated its success and ignored data showing that a substantial number of families who enroll in the program end up back in shelters.
During a Dutch national mastitis control program, a substantial number of farmers seemed to be hard to reach with information on udder health.
Although with implementation of a return to work program a substantial number of persons with HIV/AIDS may be able to return to partial employment [ 42], one study showed that only about 15% of patients returned to full time work over two years [ 43].
However, given that we were able to contact a substantial number of former staff, engaged in a variety of program activities, we do not feel that these potential limitations greatly detract from the usefulness of these findings.
These three hospitals were chosen, because of existing contacts to either the occupational physician or the clinical microbiologist, the existence of comparable vaccination programs, and having a substantial number of the HCP not taking the vaccination (see Table 1 for distribution of immunizers and non-immunizers).
Our analysis demonstrates at the level of one municipal jurisdiction how utilizing operations research modelling to optimize resource allocation within an HIV testing program could prevent a substantial number of new infections.
Grade 2 and Grade 3 were analyzed separately because a substantial number of children (n = 29) dropped out of the programs by Grade 3, and the purpose of our analyses was to examine relations between features of program quality and child outcomes at different ages.
