Table 3

Individual Group Analysis: Efficacy of Interventions in Reducing Antibiotic Prescribing at 12 Months

MeasureUsual Care
(n = 1,194)		CRP Training
(n = 1,052)		Communication
Training (n = 1,166)		Combination
(n = 1,410)
Patients prescribed antibiotics, No. (%)613 (51.3)456 (43.4)465 (39.9)641 (45.5)
Basic risk ratio (95% CI) [P value]aref0.83 (0.66-1.02) [.08]0.83 (0.66-1.01) [.07]0.83 (0.66-1.00) [.053]
Fully adjusted risk ratio (95% CI) [P value]bref0.75 (0.51-1.00) [.052]0.70 (0.49-0.94) [.02]0.70 (0.49-0.93) [.01]

  • CRP = C-reactive protein; ref = reference group.

  • ↵a The basic model adjusted for baseline prescribing and clustering by physician and practice.

  • ↵b The fully adjusted model controlled for the variables listed under Table 1.