Tabla 3
Proporción de incidencia (PI), razón de incidencia acumulada (RIA), diferencia de riesgo (DR) y sus correspondientes intervalos de confianza del 95% (IC del 95%) de las descalificaciones antes del partido por nivel del torneo, superficie, número de sets y ronda.
| N.º de descalificaciones antes | N.º de partidos | PI (IC del 95%) | RIA (IC del 95%) | DR (IC del 95%) | |
| Nivel de torneo | |||||
| Grand Slam | 2 | 32,723 | 0.06 (0.01–0.22) | Ref. | Ref. |
| Master | 2 | 26,928 | 0.07 (0.01–0.27) | 1.22 (0.17–8.63) | 0.01 (-0.12–0.15) |
| 250 o 500 | 105 | 126,041 | 0.83 (0.68–1.01) | 13.63 (3.36–55.22) | 0.77 (0.59–0.95) |
| Finales del Tour | 0 | 532 | 0.00 (0.00–6.91) | N.D. | N.D. |
| Superficie | |||||
| Tierra batida | 41 | 64,984 | 0.63 (0.45–0.86) | Ref. | Ref. |
| Hierba | 5 | 21,174 | 0.24 (0.08–0.55) | 0.37 (0.15–0.95) | -0.39 (-0.68–0.11) |
| Pista dura | 24 | 82,575 | 0.29 (0.19–0.43) | 0.46 (0.28–0.76) | -0.34 (-0.57–0.11) |
| Moqueta | 39 | 17,491 | 2.23 (1.59–3.05) | 3.53 (2.28–5.48) | 1.60 (0.87–2.32) |
| Ronda | |||||
| Clasificación | 4 | 25,896 | 0.15 (0.04–0.40) | Ref. | Ref. |
| Preliminar | 85 | 133,166 | 0.64 (0.51–0.79) | 4.13 (1.52–11.26) | 0.48 (0.28–0.69) |
| Final | 20 | 27,162 | 0.74 (0.45–1.14) | 4.77 (1.63–13.94) | 0.58 (0.23–0.94) |
| N.D. = No disponible; Ref. = Referencia | |||||
