Individual trial estimates from continuous data not combined in meta-analyses.

Legend.
Studies are listed in order of increasing length of follow-up, within each category of outcomes.
Abbreviations: US = United States; NL = The Netherlands; UK = United Kingdom; ZA = South Africa; FUP = follow-up; m = months; N = total number of patients per group; SD = standard deviation; WMD = weighted mean difference; CI = confidence intervals; nr = not reported; ART = Antiretroviral Therapy; FENO = Fraction of Exhaled Nitric Oxide; PD20 = provocative dose of methacholine causing a 20% fall in forced expiratory volume in one second (FEV1); LDL = Low Density Lipoprotein; TC = Total Cholesterol; HDL = High Density Lipoprotein; mmol/l = millimoles per litre; µmol/day = micromoles per day; CD4 = t-cell surface glycoprotein CD4; l/min = litre per minute.
* reported mean (90% CIs) for nurse versus general physician: PD20-FEV1, % predictive value-FEV1, p.p.b FENO.
†reported mean (90% CIs) for nurse versus paediatrician: PD20-FEV1, % predictive value-FEV1, p.p.b FENO.
‡reported the median (interquartile ranges) for nurse and physician groups respectively.
§reported between nurse/general physician versus nurse/paediatrician.