Figure 1c.

Quarterly age-specific asthma hospitalization rates for children under age 18, Pennsylvania, 2000–2009. Source: 2000–2009 Pennsylvania Health Care Cost Containment Council (PHC4) hospital discharge database.

Year/Quarter	Under 18 y
2000 Q1	60.62
2000 Q2	49.96
2000 Q3	55.10
2000 Q4	82.03
2001 Q1	68.37
2001 Q2	63.23
2001 Q3	46.24
2001 Q4	89.25
2002 Q1	63.02
2002 Q2	51.42
2002 Q3	42.97
2002 Q4	80.89
2003 Q1	64.70
2003 Q2	68.60
2003 Q3	69.37
2003 Q4	90.61
2004 Q1	66.78
2004 Q2	53.35
2004 Q3	41.04
2004 Q4	78.33
2005 Q1	52.65
2005 Q2	56.83
2005 Q3	33.85
2005 Q4	78.83
2006 Q1	53.74
2006 Q2	54.52
2006 Q3	45.51
2006 Q4	90.00
2007 Q1	53.39
2007 Q2	53.81
2007 Q3	44.87
2007 Q4	88.38
2008 Q1	56.91
2008 Q2	50.50
2008 Q3	42.89
2008 Q4	67.46
2009 Q1	54.45
2009 Q2	52.21
2009 Q3	66.99
2009 Q4	81.01