I was recently reading an article related to your original post. The article had to do with the identification of Nursing-sensitive and Multidisciplinary quality indicator sets. I skimmed over the references included with the article and this is what I found that might be of interest to you:
Reed L, Blegan, M, Goode C, et al. Assessing patient occurrences as a measure of nursing care quality. Journal of Nursing Administration. 1998; 28 (5) 62-69.
Joint Commission on Accreditation of Healthcare Organizations. The Measurement Mandate. Oakbrook Terrace, Ill: JCAHO; 1993.
Hegyvary ST. issues in outcomes research. Journal of Nursing Quality Assurance. 1991: 5(2) 1-6.
American Nurses Association. Nursing Care Report Card for Acute Care. Washington, DC; ANA, 1995.
Irvine D, Sidani, S. Hall LM, et al. Linking outcomes to nurses' roles in health care. Nursing Economics. 1998: 16(2): 58-64.
Aiken L, Smith H, Lake ET. Lower medicare mortality among a set of hospitals known for good nursing care. Medical Care. 1994, 32: 771-787.
Blegen MA, Vaughn T. A multisite study of nurse staffing and patient occurrences. Nursing Economics. 1998. 16(4) 196-203.
Kovner C, Gergren PJ. Nurse staffing levels and adverse events following surgery in US hospitals. Image: Journal of Nursing Scholarship
. 1998. 30(4) 315-321.
Jastremski, C. Caught between the rock and the hard place: proving the worth of nursing. Journal of Trauma Nursing. 1999. 6(1) 3-4.
Johnson M, Maas M, Moorhead S. Nursing Outcomes Classification. St. Louis, MO: Mosby. 2000.
Maas, M. Nursing's role in interdisciplinary accountability for patient outcomes. Outcomes Management in Nursing Practice. 2000. 2(3) 92-94.
These are reference for one article. I'm sure there are more like these published, but you'll have to find them yourself. There are also internet references, such as the ANA Nursing Quality Indicators, Nursing Outcomes Classification (NOC), Nursing Intervention Classification (NIC), and nursing outcomes measurement studies.