Table 4.

Factors associated with PCPs providing total care vs shared and referred care

FACTOR	MODEL 1: PCP PROVIDING TOTAL^{^*} WBC FOR INFANTS WHO ARE CF CARRIERS, ADJUSTED RR (95% CI)	MODEL 2: PCP PROVIDING TOTAL^{^*} ACUTE MINOR ILLNESS CARE FOR INFANTS WHO ARE CF CARRIERS, ADJUSTED RR (95% CI)	MODEL 3: PCP PROVIDING TOTAL^{^*} WBC FOR INFANTS WHO HAVE AN INCONCLUSIVE DIAGNOSIS OF CF, ADJUSTED RR (95% CI)	MODEL 4: PCP PROVIDING TOTAL^{^*} ACUTE MINOR ILLNESS CARE FOR INFANTS WHO HAVE AN INCONCLUSIVE DIAGNOSIS OF CF, ADJUSTED RR (95% CI)
Extremely or very confident in reassuring about health of CF carrier vs not very or not at all confident	1.50 (1.14-1.97)^{^†}	1.21 (0.98-1.50)	3.30 (1.34-8.16)^{^†}	1.61 (1.03-2.52)^{^†}
Moderately confident in reassuring about health of CF carrier vs not very or not at all confident	1.44 (1.10-1.90)^{^†}	1.26 (1.02-1.56)^{^†}	4.08 (1.68-9.92)^{^†}	1.89 (1.21-2.95)^{^†}
Population served: urban vs rural	0.92 (0.86-0.99)^{^†}	0.95 (0.89-1.02)	0.93 (0.72-1.19)	0.94 (0.81-1.10)
Female vs male	1.16 (1.07-1.26)^{^†}	1.08 (1.00-1.16)^{^†}	1.06 (0.84-1.33)	0.92 (0.80-1.06)
Midwives vs family physicians and pediatricians^{^‡}	0.72 (0.56-0.94)^{^†}	0.12 (0.05-0.31)^{^§}	0.46 (0.22-0.98)^{^†}	0.08 (0.02-0.32)^{^§}
Within scope to provide reassurance about health of CF carrier: yes vs no	1.17 (0.94-1.47)	1.02 (0.90-1.14)	0.64 (0.43-0.97)^{^†}	0.89 (0.69-1.16)
Child in practice with positive NBS result for CF: yes vs no	1.05 (0.95-1.17)	1.06 (0.97-1.15)	1.09 (0.82-1.44)	1.32 (1.12-1.55)^{^†}

CF—cystic fibrosis, NBS—newborn screening, PCP—primary care provider, RR— risk ratio, WBC—well-baby care.
↵^*Total care vs combined shared and referred care.
↵^†P < .05.
↵^‡Differences between family physicians vs midwives and pediatricians, and pediatricians vs midwives and family physicians were not significant.
↵^§P < .01.