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Table 1 Design characteristics of the studies included in our systematic review

From: Socioeconomic status (SES) as a determinant of adherence to treatment in HIV infected patients: a systematic review of the literature

First author, Year of publication [Reference number]

Setting

Type of Study

Patient Population

Type of Medication (*)

Laniece I., 2003 [23]

Senegal, Dakar, 3 health structures

Prospective cohort study (2 years)

158 HIV(+) adults, enrolling into ISAARV (Senegalese ARV Access Initiative)

HAART, mainly

Mohammed H., 2004 [26]

USA, Non-urban Louisiana, 8 HIV outpatient clinics

Retrospective study (clinic survey) (30 months)

273 HIV(+) adults, using HAART

HAART

Eldred L.J., 1998 [27]

USA, Baltimore, Johns Hopkins Hospital, HIV Outpatient Clinic

Retrospective study (clinic survey) (9 months)

244 HIV(+) adults, Medicaid-insured, at least one previous clinic visit in previous 6 months + prescription of antiretroviral therapy for at least 6 months

Antiretroviral monotherapy, mainly

Kleeberger C.A., 2004 [24]

USA, Multicenter (4 centres in Baltimore, Chicago, Pittsburgh, Los Angeles)

Prospective cohort study (2 years)

597 HIV(+) homosexual men, using HAART + participating in MACS (Multicenter AIDS Cohort Study), between patients' 30th and 33rd visit [only 486 provided needed data on follow-up]

HAART

Peretti-Watel P., 2005 [28]

France, 102 hospital departments delivering HIV care

Cross-sectional study (national survey) (1 year)

1809 HIV(+) adults (homosexual men, heterosexual men, and heterosexual women), French speaking, diagnosed as HIV(+) for at least 12 months, living in France for at least 6 months + sexually active during the prior 12 months

HAART

Fong O.W., 2003 [15]

Hong Kong, Integrated Treatment Centre of the Department of Health

Retrospective study (1 year)

161 HIV(+) adults, Chinese in origin + treated with HAART for at least 12 months (at the end of 2000)

HAART

Kleeberger C.A., 2001 [25]

USA, Multicenter (4 centres in Baltimore, Chicago, Pittsburgh, Los Angeles)

Prospective cohort study (6 months)

539 HIV(+) homosexual men, during their 30th visit to MACS

HAART, mainly

Goldman D.P., 2002 [16]

USA

Retrospective analysis of prospective study, (2 years)

2864 HIV(+) adults, participating in HCSUS (HIV Cost and Services Utilization Study [only 2267 provided needed data on last follow-up]

HAART, mainly

Golin C.E., 2002 [14]

USA, North Carolina, County Hospital HIV Clinic

Prospective cohort study (1 year)

117 HIV(+) adults, English or Spanish speaking + newly initiating HAART (PI or NNRTI)

HAART

Singh N., 1999 [3]

USA, 3 Medical Centres, HIV Clinics

Prospective cohort study (6 months)

123 HIV (+) adults, followed in any of the clinics

Antiretroviral treatment, not specified

Kalichman S.C., 1999 [29]

USA, Georgia, Atlanta, community area

Community-based study (Regional survey)

184 HIV(+) adults, receiving triple-drug combination

HAART

Weiser S., 2003 [30]

Botswana, 3 private clinics (2 in Gabarone, 1 in Francistown)

Cross-sectional study (Clinic survey) (7 months)

109 HIV (+) adults

Antiretroviral treatment (HAART 31%)

Morse E.V., 1991 [21]

USA, Louisiana, New Orleans

Nurse-based survey (6 months)

40 HIV (+) adults, asymptomatic + participating in ACTG (AIDS Clinical Trials Group) [the 20 most and the 20 least adherent patients]

ZDV or placebo

Gebo K.A., 2003 [31]

USA, Baltimore, Johns Hopkins University, HIV Clinic

Cross-sectional study (Clinic survey) (8 months)

196 HIV (+) adults, enrolling in the HIV Clinic + taking at least 1 antiretroviral medication

Antiretroviral treatment, not specified

Duong M., 2001 [32]

France, Dijon Hospital AIDS day-care Unit

Prospective cross-sectional study (5 months)

149 HIV (+) adults, receiving drug regimens including 2 nucleoside analogues + 1 or more PIs

HAART

Ickovics J.R, 2002 [4]

USA, Multicenter (21 collaborating units)

Prospective analysis of Randomised Controlled Trial (24 weeks)

93 HIV (+) adults, participating in ACTG (AIDS Clinical Trial Group) protocol 307

dT4+ DLV+IDV, ZDV+3TC+IDV, ZDV+DLV+IDV

Singh N., 1996 [22]

USA, Pittsburgh VA Medical Center

Prospective study (12 months)

46 HIV (+) male adults

ZDV only (78%), ZDV + ddI (13%), ddI only (8%)

  1. (*) Abbreviations in medication: HAART = highly active antiretroviral treatment, ZDV = zidovudine, dT4 = stavudine, DLV = delaviridine, IDV = indinavir, 3TC = lamivudine