Prevalence of seatbelt use in primetime television programs and commercials stratified by program rating, program genre, and age of character portrayed
| All | Program | Commercial | p Value | |
|---|---|---|---|---|
| *p Values for the comparison of PG v TV-14, PG v N/A, and TV-14 v N/A. | ||||
| †p Values for the comparison of situation comedy/drama v news/sports/reality. | ||||
| ‡p Values for the comparison of 0–15 v 16–25, 0–15 v 26-40, 0–15 v >40, 16–25 v 26–40, 16–25 v >40, 26–40 v >40. | ||||
| Program rating | ||||
| PG | 77% (40/52) | 80% (8/10) | 76% (32/42) | 0.8 |
| TV-14 | 88% (155/177) | 41% (7/17) | 92% (148/160) | <0.001 |
| N/A | 76% (128/169) | 65% (37/57) | 81% (90/111) | 0.02 |
| p Value* | 0.06/0.86/0.004 | 0.05/0.35/0.08 | 0.003/0.50/0.005 | |
| Program genre | ||||
| Situational comedy/drama | 87% (227/262) | 66% (31/47) | 91% (196/215) | <0.001 |
| News/sports/reality | 70% (96/136) | 57% (21/37) | 76% (74/98) | 0.03 |
| p Value† | 0.0001 | 0.39 | 0.0002 | |
| Age of character (years) | ||||
| 0–15 | 89% (67/75) | 60% (3/5) | 91% (64/70) | 0.08 |
| 16–25 | 78% (61/78) | 57% (12/21) | 86% (49/57) | 0.006 |
| 26–40 | 82% (125/153) | 62% (21/34) | 87% (103/118) | <0.001 |
| >40 | 76% (70/92) | 67% (16/24) | 79% (54/68) | 0.2 |
| p Value‡ | 0.06/0.14/0.03/0.53/0.74/0.29 | 0.91/0.94/0.78/0.74/0.51/0.70 | 0.33/0.38/0.06/0.81/0.38/0.15 | |