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. Author manuscript; available in PMC: 2009 Oct 25.
Published in final edited form as: J Acquir Immune Defic Syndr. 2009 Jan 1;50(1):100–108. doi: 10.1097/QAI.0b013e31818d5c37

Table 1.

Overall characteristics and factors associated with poor adherence to primary HIV care appointments among 1,221 patients with at least 4 scheduled appointments over a ≥6 month time period at the UAB 1917 HIV/AIDS Clinic, August 2004 – January 2007.

Characteristic Mean ± SD or N (%) Crude OR (95% CI) for No Show Adjusted OR (95% CI) for No Show
Age (years) 42.0 ± 9.2 0.82 (0.76–0.88)§** 0.86 (0.80–0.93)§**

Gender
 Male 927 (75.9) 1.0 1.0
 Female 294 (24.1) 1.34 (1.15–1.55)** 1.10 (0.94–1.29)

Race
 White 649 (53.1) 1.0 1.0
 African American 572 (46.9) 2.00 (1.75–2.29)** 1.85 (1.61–2.14)**

Insurance
 Private 519 (42.5) 1.0 1.0
 Public 416 (34.1) 1.58 (1.36–1.85)** 1.35 (1.16–1.58)**
 Uninsured 286 (23.4) 1.54 (1.29–1.83)** 1.18 (0.99–1.41)

Affective mental health disorder
 No 615 (50.4) 1.0 1.0
 Yes 606 (49.6) 0.89 (0.78–1.02) 0.93 (0.81–1.06)

Alcohol abuse
 No 1068 (87.5) 1.0 1.0
 Yes 153 (12.5) 1.26 (1.03–1.55)* 1.22 (1.01–1.48)*

Substance abuse
 No 987 (80.8) 1.0 1.0
 Yes 234 (19.2) 1.47 (1.25–1.73)** 1.38 (1.17–1.63)**

Baseline CD4 count (cells/mm3)
 ≤ 200 318 (26.0) 1.35 (1.15–1.57)** 1.12 (0.96–1.32)
 200 – 350 245 (21.1) 1.29 (1.08–1.54)** 1.22 (1.03–1.44)*
 > 350 658 (53.9) 1.0 1.0

Number of total appointments scheduled 9.5 ± 3.7 --- ---

Missed visit proportion (MVP) --- ---
0% 373 (30.6)
0 < MVP < 25% 355 (29.1)
25 ≤ MVP < 50% 332 (27.2)
50 ≤ MVP < 75% 143 (11.7)
75 ≤ MVP < 100% 18 (1.5)

“No show” appointment status was modeled as the measure of poor adherence to HIV primary care appointments. All “arrived” and “no show” visits from all study participants during the study period were included in these analyses. “Cancelled” visits, appointments not attended for which a patient notified the clinic they would miss the visit or was hospitalized, were excluded.

Binomial generalized estimating equation (GEE) models with an auto-regressive correlation structure, which accounts for the correlation of multiple observations nested within each patient. Adjusted model controls for other variables with numeric values displayed in the table.

§

Odds ratio for 10-years increments

The missed visit proportion (MVP) is a binomial ratio of the number of “no show” visits divided by the overall number of scheduled appointments (“arrived” and “no show”) during the study period.

*

p<0.05

**

p<0.01