TABLE 1

Health Care Use Because of Asthma

Variable200120022003
Mean asthma hospitalizations per patient per year0.040.030.05
Mean asthma ED visits per patient per year0.190.240.27
Mean asthma outpatient visits per patient per year0.941.361.25
No. patients with persistent asthma, %657 (24)820 (31)890 (33)
No. of primary care sites356378360
Median number of patients/site, interquartile range2 (1–4)2 (1–5)2 (1–5)
No. patients receiving spirometry, %267 (10)469 (17)493 (18)