Table 2.
Differences between small, medium, and large LHDs reported by frequency and percentage.
| Variable | Small | Medium | Large | Total | P value |
| Original tweet | 851 (33%) | 871 (87.1%) | 856 (86.6%) | 2578/3000 (85.9%) | .41 |
| Tweet truncated | 231 (50.8%) | 152 (15.2%) | 72 (7%) | 455/3000 (15.2%) | <.001 |
| Tweet truncated from Facebook | 109 (50%) | 82 (38%) | 27 (12%) | 218/3000 (7.3%) | <.001 |
| Retweet | 147 (35.3%) | 130 (31.2%) | 140 (33.6%) | 417/3000 (13.9%) | .54 |
| @Reply | 3 (10%) | 8 (27%) | 19 (63%) | 30/3000 (0.01%) | .001 |
| @username | 178 (30.1%) | 184 (31.1%) | 230 (38.9%) | 592/3000 (19.7%) | .06 |
| Redirect to another link, websites, etc, to learn more | 706 (31.9%) | 708 (32.0%) | 797 (36%) | 2211/3000 (73.7%) | <.001 |
| Use of personal pronouns (1st and 2nd person) | 401 (36.4%) | 369 (33.5%) | 332 (30.1%) | 1102/3000 (36.7%) | .006 |
| Hashtags (#) | 116 (23.9%) | 135 (27.8%) | 235 (48.4%) | 486/3000 (16.2%) | <.001 |
| Organization—Overall | 438 (36.9%) | 382 (32.2%) | 366 (30.9%) | 1186/3000 (39.5%) | .003 |
| Organization—Information | 241 (39.2%) | 201 (32.7%) | 173 (28.1%) | 615/1186 (51.9%) | .08 |
| Organization—Engagement | 132 (31.8%) | 125 (30.1%) | 158(38.1%) | 415/1186 (35.0%) | <.001 |
| Organization—Action | 68 (43%) | 56 (35%) | 34 (22%) | 158/1186 (13.3%) | .02 |
| Personal Health—Overall | 509 (30.3%) | 574 (34.1%) | 599 (35.6%) | 1682/3000 (56.0%) | <.001 |
| Personal Health—Information | 322 (32.7%) | 321 (32.6%) | 341 (34.7%) | 984/1682 (58.5%) | .03 |
| Personal Health—Action | 187 (26.8%) | 254 (36.4%) | 256 (36.7%) | 697/1682 (41.4%) | .03 |