Table 2.

Coefficients of determination of regression models for variation of the ratio of the nearest neighbour over time for Zika, chikungunya and dengue, Rio de Janeiro, 2015–2016

Disease	Inverse curve	Cubic curve	S curve
Zika	0.462*	0.567*	0.986*
Chikungunya	0.648*	0.569*	0.989*
Dengue 1st epidemic curve	0.478*	0.685*	0.984*
Dengue 2nd epidemic curve	0.550*	0.564*	0.984*

*P-value < 0.001