TABLE 6

Multivariate Logistic Regression: Association of Early and Late Adoption and High and Low Frequency of Use of MCPAP and Practice Characteristics

CharacteristicTime Until Adoption <100 dTime Until Adoption >365 dHighest Quartile Frequency of UseLowest Quartile Frequency of Use
aOR (95% CI)PaOR (95% CI)PaOR (95% CI)PaOR (95% CI)P
Practice type: pediatricsa1.96 (0.89–4.30).0930.38 (0.15–0.94).0362.13 (0.87–5.23).0990.51 (0.23–1.14).102
Total travel time by car: >35 minb1.48 (0.80–2.75).2110.94 (0.41–2.15).8851.04 (0.51–2.12).9091.95 (1.05–3.65).035
Pediatric-age patients in practicec
 2000–99991.65 (0.81–3.38).1670.42 (0.18–1.00).0500.45 (0.21–0.98).0451.28 (0.57–2.87).545
 ≥10 0001.40 (0.58–3.34).4540.21 (0.07–0.74).0150.10 (0.03–0.31)<.0012.60 (0.99–6.84).053
FTEs in practice: >2d1.39 (0.72–2.62).3280.72 (0.32–1.57).4042.10 (1.03–4.31).0410.61 (0.30–1.25).178
MCPAP region: central Massachusettse4.42 (2.16–9.04)<.0010.22 (0.07–0.70).0103.58 (1.86–6.87)<.0010.24 (0.09–0.64).005
Year enrolled: 2007 or laterf4.09 (2.23–7.49)<.0010.23 (0.09–0.55).0010.82 (0.42–1.58).5511.00 (0.54–1.86).996
  • Reference categories: afamily medicine; b≤35 min; c<2000; d1–2; eBoston area or Western Massachusetts; and f2005 or 2006.