All citations | Nontheoretical citations | Theoretical citations | |||||||

Parameter | OR (95% CI) | Wald z | P | OR (95% CI) | Wald z | P | OR (95% CI) | Wald z | P |

Intercept | 29.11 (21.01–40.34) | 20.287 | <0.001 | 21.24 (14.99–30.08) | 17.230 | <0.001 | 6.14 (4.17–9.04) | 9.221 | <0.001 |

Density of equations (main text) per page | 0.72 (0.57–0.92) | −2.673 | 0.008 | 0.65 (0.50–0.84) | −3.330 | 0.001 | 0.96 (0.73–1.26) | −0.311 | 0.755 |

Density of equations (appendices) per page | 0.99 (0.65–1.52) | −0.032 | 0.975 | 1.07 (0.68–1.70) | 0.305 | 0.760 | 0.98 (0.60–1.61) | −0.067 | 0.946 |

Total no. of pages | 1.05 (1.02–1.07) | 3.856 | <0.001 | 1.05 (1.02–1.08) | 3.608 | <0.001 | 1.05 (1.02–1.08) | 3.365 | 0.001 |

Published in Evolution (cf Am. Nat.) | 0.94 (0.76–1.17) | −0.523 | 0.601 | 1.07 (0.85–1.35) | 0.553 | 0.580 | 0.70 (0.54–0.91) | −2.691 | 0.007 |

Published in Proceedings B (cf Am. Nat.) | 1.13 (0.90–1.42) | 1.029 | 0.303 | 1.21 (0.94–1.54) | 1.503 | 0.133 | 0.93 (0.71–1.21) | −0.562 | 0.574 |

Equation density (main text) × no. of pages | 1.02 (0.99–1.05) | 1.572 | 0.116 | 1.02 (0.99–1.05) | 1.534 | 0.125 | 1.03 (1.00–1.06) | 1.788 | 0.074 |

Equation density (appendices) × no. of pages | 1.00 (0.96–1.04) | −0.073 | 0.941 | 0.97 (0.93–1.02) | −1.161 | 0.246 | 1.03 (0.98–1.08) | 1.022 | 0.307 |

The table shows statistical results from a generalized linear model with a negative binomial error structure. For a unit increase in the explanatory variable, the number of citations changes by a factor given by the OR, shown here with a 95% CI. Significant effects (

*P*< 0.05) based on the Wald*z*statistic are highlighted in bold.