Publication details | Which HCP did the patient first present to? | Number of consultations before referral was made | Referring professional^{a} | Total primary care interval^{b} |
---|---|---|---|---|

Scott et al, 2005 UK^{26} | – | – | GP: 19.2% (n= 46)Dentist: 22.1% ( n= 53)Other: 58.7% ( n= 141) | – |

Scott et al, 2006 UK^{27} | – | – | – | – |

Rogers et al, 2007 UK^{28} | GP: 49% (n= 254)Dentist: 43% ( n= 219) | – | GP: 49% (n= 254)Dentist: 43% ( n= 219) | General medical: n= 194, mean 22, IQR 12 to 48General dental: n= 174, mean 22, IQR 9 to 65, P= 0.48 |

Crossman et al, 2016 UK^{29} | – | – | GP: 52.3% (n= 91)Dentist: 35.6% ( n= 52) | – |

Schnetler, 1992 UK^{30} | – | – | GP: 52.1% (n= 50)Dentist: 40.6% ( n= 39)Other: 7.3% ( n= 7) | – |

Hollows et al, 2000 UK^{31} | – | – | GP: 56.0% (n= 56)Dentist: 36% ( n= 36) | GP: mean 8.4 days, range 0 to 90, SD 17.6 Dentist: mean 14.5, range 0 to 176, SD 32.2 |

Kaing et al, 2016 Australlia^{34} | GP: 52% (n= 53)Dentist: 42% ( n= 42) | GP: mean 2.7, range 1 to 6 Dentist: mean 2.9, range 2 to 5 | GP: 48.2% (n= 46)Dentist: 50.6% ( n= 48) | – |

Jovanovic et al, 1992 Netherlands^{32} | GP: 65.9% (n= 27)Dentist: 29.3% ( n= 12) | – | – | – |

Kowalski et al, 1994 Brazil^{35} | GP: 94.9% (n= 319)Dentist: 18.7% (n = 63) Pharmacist: 14% ( n= 47) | – | – | – |

Peacock et al, 2008 US^{40} | – | – | – | All primary care physicians: mean 35.9 days, range 0 to 280 |

Groome et al, 2011 Canada^{36} | – | – | GP: 66.0% (n= 1525)Dentist: 24.7% ( n= 570)Other: 9.5% ( n= 231) | – |

Wildt et al, 1995 Denmark^{37} | GP: 45% (n= 75)Dentist: 35% ( n= 58)Other: 21% ( n= 34) | – | GP: 45% (n= 75)Dentist: 35% ( n= 58)Other: 21% ( n= 34) | – |

Tromp et al, 2005 Netherlands^{33} | – | – | – | – |

Kantola et al, 2001 Finland^{38} | GP: 81% (n= 61)Dentist: 19% ( n= 14) | – | GP: 81% (n= 61)Dentist: 19% ( n= 14) | – |

Onizawa et al, 2003 Japan^{39} | GP: 20.1% (n= 29)Dentist: 59.0% ( n= 85)Oral surgeon: 6.25% ( n= 9)Other: 14.6% ( n= 21) | – | – | Median 6, quartile deviation 22, range 0 to 240 |

Kerdpon et al, 2001 Thailand^{41} | GP: 82.6% (n= 133)Dentist: 15.5% ( n= 25) | Mean 4.3, range 2 to 50 | – | – |