Table 2.

Asthma Patients per 1000 Clinic Patients (Clinic Mean ± SE) (N = 22)

BaselineFollow-Up
199119921993
Total patients
 Intervention clinics25.4  ± 8.457.4  ± 17.5*69.3  ± 20.1*
 Control clinics20.3  ± 8.419.0  ± 8.620.8  ± 8.7
Newly identified patients
 Intervention clinics20.0  ± 5.944.4  ± 11.6*39.6  ± 9.2
 Control clinics14.6  ± 5.014.5  ± 5.315.9  ± 4.8
Returning patients
 Intervention clinics5.4  ± 2.513.0  ± 6.129.8  ± 11.9*
 Control clinics5.8  ± 3.54.5  ± 3.34.9  ± 4.0
Percentage of patients returning from previous year for asthma care
 Intervention clinics16  ± 332  ± 542  ± 4*
 Control clinics14  ± 412  ± 412  ± 4
  • The figures reported are ordinary arithmetic averages of clinic rates or percentages. Symbols refer to statistical comparisons of weighted averages as explained in the methods section. In each comparison the reference year is 1991.

  • * P < .001.

  • P < .01.

  • P < .05.