Table 2.

Adjusted Odds Ratio (OR) of Medical Service Utilization in a Given Month According to Selected Variables (N = 197)

	Utilization Adjusted OR (95% CI)*
Variable	Primary Care Visit	Specialty Care Visit	Hospitalization	Home Health/Hospice Visit	No Outpatient or Inpatient Visit
CD4 cell count
≥200/mm3	1.00	1.00	1.00	1.00	1.00
100–199/mm3	1.45 (0.94 to 2.26)	2.10 (1.33 to 3.32)†	1.73 (0.95 to 3.12)	2.32 (1.12 to 4.81)‡	0.51 (0.32 to 0.83)†
50–99/mm3	1.35 (0.88 to 2.06)	2.09 (1.33 to 3.29)§	2.84 (1.54 to 5.24)§	2.54 (1.11 to 5.78)‡	0.66 (0.4 to 1.09)
0–49/mm3	2.21 (1.49 to 3.27)§	2.86 (1.91 to 4.27)§	2.95 (1.67 to 5.19)§	4.14 (2.06 to 8.34)§	0.31 (0.19 to 0.5)§
Severity of AIDS-defining illness
Low	1.00	1.00	1.00	1.00	1.00
Medium	0.92 (0.65 to 1.29)	1.30 (0.92 to 1.86)	1.35 (0.94 to 1.94)	1.38 (0.82 to 2.33)	0.93 (0.62 to 1.38)
High	0.91 (0.62 to 1.33)	1.43 (0.94 to 2.18)	1.10 (0.70 to 1.71)	2.52 (1.41 to 4.51)†	0.87 (0.53 to 1.42)
Months since AIDS diagnosis	0.99 (0.98 to 1.01)	1.03 (1.01 to 1.04)§	1.00 (0.99 to 1.02)	1.04 (1.02 to 1.05)§	1.00 (0.98 to 1.01)
Period of care
Diagnosis period	2.21 (1.74 to 2.80)§	1.42 (1.11 to 1.83)†	2.67 (1.86 to 3.83)§	1.16 (0.84 to 1.59)	0.35 (0.26 to 0.46)§
Interim period	1.00	1.00	1.00	1.00	1.00
End-of-life period	0.60 (0.47 to 0.77)§	0.90 (0.68 to 1.18)	6.51 (4.56 to 9.28)§	3.12 (2.33 to 4.18)§	0.63 (0.47 to 0.85)†
Physician experience level
Least	0.50 (0.32 to 0.77)†	1.00‖	0.53 (0.32 to 0.88)‡	0.67 (0.33 to 1.38)	2.46 (1.44 to 4.21)§
Moderate	0.54 (0.39 to 0.74)§	1.79 (1.09 to 2.93)‡	0.69 (0.48 to 0.99)‡	0.93 (0.57 to 1.53)	1.81 (1.22 to 2.68)†
Most	1.00	1.66 (1.04 to 2.65)‡	1.00	1.00	1.00

^*Odds ratios (ORs) were adjusted for all the other variables in the table.

^†Denotes P < .01.

^‡Denotes P < .05

^§Denotes P < .001.

^‖Reference category depicts the observed difference between moderate and most versus least experienced physicians.

CI, confidence interval.