
Dependent variable: paediatric blood transfusions


Independent variables

(1)

(2)


Monthly trend 20002003

−0.60***

−0.52***


(0.12)

(0.10)

Difference in monthly use 2004–2008 (relative to 2000–2003)

−10.58***
 

(3.35)
 
Monthly trend 20042008

−0.02
 

(0.04)
 
Difference in monthly use 2004–2006 (relative to 2000–2003)
 
−19.06***

 
(3.56)

Monthly trend 20042006
 
0.34***

 
(0.10)

Difference in monthly use 2007–2008 (relative to 2000–2003)
 
−27.47***

 
(6.56)

Monthly trend 20072008
 
−0.14

 
(0.22)

Constant

56.59***

55.12***


(7.62)

(7.45)

Observations

108

108

Mean of dependent variable

22.79

22.79

Wald ChiSquared

2734.85

3740.52

 *Significant at 10%; **significant at 5%; ***significant at 1%. Coefficient standard errors are noted in parentheses.
 Regressions use an autoregressivemovingaverage model with 2 lags and robust standard errors. We control for the month of the year in all regressions to account for seasonal correlations. For column 1, monthly trend 2000–2003 represents the rate of change by month for the outcome variable from 2000–2003. Monthly trend 2004–2008 represents the rate of change by month for the outcome variable from 2004–2008. Difference in monthly use in 2004–2008 represents the average difference in the outcome between 2000–2003 period and 2004–2008 period. For column 2, monthly trend 2000–2003 is defined as in column 1. Monthly trend 2004–2006 represents the rate of change by month for the outcome from 2004–2006. Monthly trend 2007–2008 represents the rate of change from 2007–2008. Difference in monthly use in 2004–2006 represents the average difference in outcome between 2000–2003 and 2004–2006. Difference in monthly use in 2007–2008 represents the average difference in outcome between 2007–2008 and 2000–2003.