Table 2.
Characteristics of high-frequency MeSH terms
| PM | Objects-humans | Objects-animals | Objects-lesions | |||||
|---|---|---|---|---|---|---|---|---|
| Rank | MeSH terms | Freq. | MeSH terms | Freq. | MeSH terms | Freq. | MeSH terms | Freq. |
| 1 | Tobacco Smoke Pollution | 149 | Humans | 192 | Animals | 80 | Aorta | 37 |
| 2 | Smoke | 84 | Male | 186 | Mice | 45 | Endothelium, Vascular | 26 |
| 3 | Particulate Matter | 70 | Female | 150 | Mice, Knockout | 34 | Tunica Intima | 12 |
| 4 | Air Pollutants | 50 | Middle Aged | 108 | Disease Models, Animal | 20 | Carotid Arteries | 8 |
| 5 | Particle Size | 37 | Aged | 88 | Rabbits | 16 | Myocardium | 7 |
| 6 | Air Pollution | 33 | Adult | 87 | Rats | 8 | Brachial Artery | 6 |
| 7 | Vehicle Emissions | 16 | Aged, 80 and over | 22 | Chickens | 7 | Carotid Artery, Common | 6 |
| 8 | Carbon Monoxide | 14 | Adolescent | 16 | Dogs | 3 | Tunica Media | 6 |