Table 1.
Frequency of Tier 1 medication use by total medication and participant
| Frequency of medications used (N = 24,697 medications)a | Number of participants using each medication (N = 2949 participants)b | |||
|---|---|---|---|---|
| N | % | N | % | |
| Cardiovascular Drugs | 4700 | 19.0 | 2167 | 73% |
| Vitamins | 3922 | 15.9 | 1909 | 65% |
| Central Nervous System Agents | 3921 | 15.9 | 2078 | 70% |
| Electrolytic, Caloric, and Water Balance | 2355 | 9.5 | 1548 | 52% |
| Hormones and Synthetic Substitutes | 2189 | 8.9 | 1311 | 44% |
| Gastrointestinal Drugs | 1219 | 4.9 | 952 | 32% |
| Eye, Ear, Nose, and Throat (EENT) Preparations | 1047 | 4.2 | 710 | 24% |
| Autonomic Drugs | 834 | 3.4 | 641 | 22% |
| Skin and Mucous Membrane Agents | 658 | 2.7 | 486 | 16% |
| Blood Formation, Coagulation, and Thrombosis Agents | 450 | 1.8 | 390 | 13% |
| Antihistamine Drugs | 436 | 1.8 | 392 | 13% |
| Miscellaneous Therapeutic Agents | 419 | 1.7 | 379 | 13% |
| Anti-infective Agents | 353 | 1.4 | 291 | 10% |
| Respiratory Tract Agents | 119 | .5 | 106 | 4% |
| Antineoplastic Agents | 116 | .5 | 112 | 4% |
| Smooth Muscle Relaxants | 90 | .4 | 89 | 3% |
| Local Anesthetics | 27 | .1 | 25 | 1% |
| Diagnostic Agents | 5 | .0 | 5 | < 1% |
| Antitoxins, Immune Globulins, Toxoids, and Vaccines | 3 | .0 | 3 | < 1% |
| Not Classified | 1834 | 7.4 | 989 | 34% |
a Note that many participants reported taking more than one drug belonging to the same Tier 1 category; as a result, total medications reported for each category may exceed the number of LongROAD participants
b Note that a given participant may take medications in 2 or more categories