Zero-Inflated Time Series Modelling of COVID-19 Deaths in Ghana

Table 1

ZIPA and ZINBA models estimate with corresponding standard errors (s.e.) for COVID-19 deaths in Ghana.

	ZIPA		ZINBA
	Log-linear		Log-linear
Coefficients	Estimate (s.e.)	Pr (>│z│)	Estimate (s.e.)	Pr (>│z│)
Intercept	1.1317 (0.1425)	<0.0001	0.5821 (0.4654)	0.2210
Count.lag1	0.0580 (0.1309)	0.6578	−0.0391 (0.2581)	0.8797
Trend	1.8618 (0.9858)	0.0590	4.9987 (3.2218)	0.1208
	Logistic		Logistic
Intercept	0.6342 (0.2774)	0.0223	0.0896 (0.5284)	0.8654
Trend	1.0210 (1.8822)	0.5875	3.0297 (2.8942)	0.2952
Dispersion,	—	—	1.5353	—
Goodness of fit
AIC	720.7728	—	681.6503	—
BIC	738.4595	—	702.8743	—
TIC	729.1185	—	683.6137	—