Table 5

Transfer function model for SUS hospital admission rate for myocardial infarction, city of Sao Paulo, Brazil, January 2005 to December 2010

Input Series	Lag*	Estimate	SE	p Value	Mean of the mensal perceptual effect
Total hospital admission (n)	0	0.0003	0.0001	<0.001	–
Minimum air temperature (°C)	0	−0.1741	0.0278	<0.001	–
Air relative humidity (%)	7	0.0401	0.0126	<0.001	–
COmax (ppm)†	5	0.3151	0.1286	0.014	–
Smoking ban law (I)‡	0	−0.7816	0.3419	0.022	−5.4
Smoking ban law (I)‡	3	0.8296	0.3956	0.036	−5.4
ARIMA error structure
Autorregressive	14	−0.4602	0.1150	<0.001	–

*Month.
†Maximum carbon monoxide level for each 8 hours.
‡Smoking ban law (starting in August 2009). Step function intervention, 1 if t≥T; 0 otherwise.