Association between malaria control and paediatric blood transfusions in rural Zambia: an interrupted time-series analysis

Malaria Journal

Table 8 Association between paediatric blood transfusions and blood transfusions in other wards

	Dependent variable: total blood transfusions		Dependent variable: blood transfusions in maternity ward		Dependent variable: blood transfusions in men's ward		Dependent variable: blood transfusions in women's ward		Dependent variable: blood transfusions in TB ward
	(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)	(10)
Paediatric blood transfusions	1.05***	1.06***	−0.00	0.00	0.02	0.03	0.01	0.04	0.00	0.00**
	(0.05)	(0.04)	(0.01)	(0.01)	(0.02)	(0.02)	(0.02)	(0.02)	(0.00)	(0.00)
Paediatric blood transfusions X period 2004-2008		0.04		0.00		−0.00		0.03		−0.00
		(0.10)		(0.03)		(0.08)		(0.07)		(0.00)
Period 2004–2008 (dummy variable)		4.47		0.45		2.98*		1.98		0.18**
		(3.28)		(0.74)		(1.78)		(1.89)		(0.09)
Constant	21.54***	18.61***	5.04***	4.65***	5.42***	3.46**	12.11***	10.25***	0.06	−0.05
	(2.43)	(2.92)	(1.16)	(1.21)	(1.32)	(1.63)	(1.17)	(1.78)	(0.11)	(0.11)
Observations	108	108	108	108	108	108	108	108	108	108
Mean of dependent variable	46.85	46.85	3.60	3.60	6.55	6.55	13.81	13.81	0.11	0.11
Wald Chi-Squared	2145.86	2427.16	2.33e + 12	1.22e + 13	314.94	238.78	12907.44	14233.20	8.56e + 10	1.05e + 07

*Significant at 10%; **significant at 5%; ***significant at 1%. Coefficient standard errors are noted in parentheses.
Regressions use an autoregressive-moving-average model with 2 lags and robust standard errors. We control for the month of the year in all regressions to account for seasonal correlations. Period 2004–2008 variable is a dummy variable that takes on a value of 1 for the years 2004–2008, and 0 otherwise.