Table 5.

Adjusted Hazard Ratio of Death Physicians' Experience and Medical Service Utilization (N = 179)

	Physician Experience Level	Adjusted HR (95% CI)*
The effect of infrequent vs more-frequent primary care visits within physician experience level	Least	1.22 (0.40 to 3.77)
	Moderate	0.65 (0.26 to 1.64)
	Most	0.15 (0.02 to 1.09)†
The effect of physician experience among patients who received infrequent primary care	Least	15.34 (1.67 to 140.79)‡
	Moderate	6.90 (0.82 to 58.43)§
	Most	1.00
The effect of physician experience among patients who received more-frequent primary care	Least	1.88 (1.03 to 3.41)‡
	Moderate	1.57 (0.99 to 2.51)†
	Most	1.00

^*Hazard ratios were adjusted for 1) disease severity at time of the diagnosis of AIDS measured by i) CD4 cell count and ii) severity of AIDS-defining illness; 2) time-varying hospital/hospice utilization measuring increased severity during the sudy period; 3) physician experience level; 4) time-varying primary care visit utilization classified as infrequent or more frequent; and 5) interactions terms for physician experience level and visit frequency.

^†P = .06.

^‡Denotes P < .05.

^§Denotes P = .08.

CI, confidence interval; HR, hazard ratio.