Table 1.
Characteristics of bicycle-related GU injuries occurring among children (<18 years) and adults who presented to US emergency departments, 2002–2010
| National estimate | 95% CI | Weighted proportion (%) | |
|---|---|---|---|
| Children | |||
| Mechanisms* | |||
| Fall from bicycle | 7060 | 5378 to 8741 | 26 |
| Direct contact with bike | 19 456 | 15 791 to 23 121 | 72 |
| Collision | 5226 | 3646 to 6807 | 19 |
| Associated bicycle part | |||
| Top tube | 6323 | 5699 to 8964 | 46 |
| Handlebar | 3435 | 2396 to 4475 | 25 |
| Seat | 3172 | 2211 to 4132 | 23 |
| Wheel | 359 | 97 to 621 | 3 |
| GU organ injured | |||
| Male external genitalia | |||
| Penis | 5903 | 5643 to 7163 | 18 |
| Scrotum/testicle | 7511 | 5665 to 9757 | 23 |
| Female external genitalia | 11 477 | 8836 to 14 119 | 36 |
| Urethra | 281 | 53 to 509 | 1 |
| Kidney | 1100 | 593 to 1607 | 3 |
| Hospital admission | 2133 | 1430 to 2827 | 7 |
| Adults | |||
| Mechanisms | |||
| Fall from bike | 2310 | 1472 to 3148 | 25 |
| Direct contact with bike | 6459 | 4070 to 8849 | 70 |
| Collision | 2315 | 1047 to 3583 | 25 |
| Associated bicycle part | |||
| Top tube | 2489 | 1394 to 3583 | 47 |
| Handlebar | 871 | 240 to 1503 | 16 |
| Seat | 1806 | 605 to 3007 | 34 |
| Wheel | 15 | 0 to 44 | <0.1% |
| GU organ injured | |||
| Male external genitalia | |||
| Penis | 640 | 299 to 981 | 6 |
| Scrotum/Testicle | 4505 | 2811 to 6198 | 42 |
| Female external genitalia | 1927 | 1154 to 2699 | 18 |
| Urethra | 419 | 48 to 789 | 4 |
| Kidney | 1101 | 449 to 1753 | 10 |
| Hospital admission | 1311 | 534 to 2088 | 12 |
*
Mechanisms of injury are not mutually exclusive.
Agreement between the two investigators abstracting the variables was very good (mean κ=0.79).
GU, genitourinary.