The phrase "decline in the utilization" is correct and can be used in written English.
For example, "We have noticed a steady decline in the utilization of public transit in the past five years."
In its annual report to Congress on Medicare's finances, the Clinton administration recently confirmed that there had been "a substantial decline in the utilization of home health care services" by Medicare beneficiaries.
Consequently, one of current successful innovations of the ACA, is the availability of the private health care marketplace, with a decline in the utilization of the public health system to serve our underserved populations.
Given the dramatic decline in the utilization of conventional postal services---thanks to email, UPS and FedEx, not to mention the new world of social networking---there really is no way for the USPS to break even without radically reinventing itself and ending certain services like Saturday delivery, closing many post offices and raising the price of a first-class stamp to a dollar or so.
The reasons for the decline in the utilization of CPD therapy in the United States are not clear and have attracted considerable interest.
In 2010, a decline was recorded in the utilization of generic anxiolytics relative to total anxiolytic utilization, by 19.4% according to financial indicators and by 2.7% according to DDD/1000/day.
Further, the decline in labor utilization will add to the deflationary pressure in the economy.
HD patients at early stages of striatal degeneration (grade I [ 17]) have normal levels of Glut3 protein, but show a decline in glucose utilization in the brain [ 3, 8, 18].
The decline in utilization of another oral drug class (the glitazones) left a clinical vacuum that eventually increased pressure for access to alternative agents.
Bunk utilization score was highest for primary peaks; scores were not significantly different between 2- and 3-row pens (0.65 vs. 0.71 ± 0.1, respectively), and rates of decline in bunk utilization score were similar over the ensuing 90-min period between pen designs.
This decline in PD utilization has been observed not only in the United States but also in Europe and elsewhere [ 3, 4].
Two randomized trials in the New England Journal of Medicine (NEJM) that showed no benefit from vertebroplasty (VP) over a simulated procedure [ 4, 5] may have contributed to the decline in utilization of Vertebral Augmentation Procedures (VAPs) and especially VP for treating VCFs in recent years [ 6, 7].
