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

Table 6 Association between malaria control scale-up and paediatric malaria visits, malaria admissions, and severe malarial admissions - interrupted time series

	Paediatric malaria outpatient visits
Monthly trend 2000-2003	−0.96***
	(0.34)
Difference in monthly use 2004–2008 (relative to 2000–2003)	−309.38***
	(9.53)
Monthly trend 2004-2008	−1.41***
	(0.12)
Constant	527.55***
	(35.68)
Observations	102
Mean of dependent variable	258.05
Wald Chi-Squared	9.42e + 09

*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. The 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.