Based on the results from the NDTI
, we purchased monthly, county-level prescriptions-filled data for 1999-2003 for the aforementioned drugs classes contained in IMS Health's Xponent[TM] database.
The Prague Summit participants also approved the joint NATO Reaction Force (NRF) under CJTF headquarters, to consist "of a technologically advanced, flexible, deployable, interoperable, and sustainable force including land, sea, and air elements ready to move quickly to wherever needed." (34) The NRF also is intended to promote and improve "the alliance's military capabilities." In other words, the NRF is conceived to become a vehicle for the NDTI
, nee DCI.
NDTI data thus provide information that permits us to compare the drugs prescribed for use by the elderly with those prescribed for younger patients, including differences involving brands versus generics.
First, assuming for the moment that, within each of the therapeutic classes, old and young face the same prices (an assumption we relax in the next section), we multiply the BLS therapeutic class quantity weights by the relative old-versus-young proportions of 1996 new prescriptions, based on NDTI data.
(25) The elderly-nonelderly split for each drug is based on the average of the 1992, 1994, and 1996 NDTI values.
The measure for morbidity is obtained from the National Disease and Therapeutic Index (NDTI
), a random sample of data from office-based physicians in 19 major specialities in the continental United States.
recognizes that companies are encumbered with responsibilities revolving around the data and human resource management of their business.
Model VI was based on the normalized difference between TM bands 5 and 7 (Normalized Difference Tillage Index - NDTI).
(1997)  Model Band or Intercept Slope Cut-off Tillage Index  Probability I TM5 10.215 -0.072 0.62 II R15 -19.404 29.949 0.56 III M15 8.785 40.947 0.56 IV D35 10.931 0.135 0.44 V STI 45.218 -23.998 0.64 VI NDTI 30.464 -99.483 0.62 (1.)Intercept and slope terms are for each logit equation.
(2.)R15 = (Band 1 / Band 5), M15= (Band 1 - Band 5) / (Band 1 + Band 5), D35 = Band 3 - Band 5, STI = (Band 5 / Band 7) NDTI = (Band 5 - Band 7) / (Band 5 + Band 7).