Murphy 1992.
Methods | Randomised controlled trial.
Duration 16 weeks. Outcomes not assessed blind. |
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Participants | Adults (n = 22, all men, mean age (SD) 37.3 years (6.7 years) with HIV infection who had involuntary weight loss of >5%. 6 dropouts, 5 in the dietary counselling group and in the dietary counselling and supplement group. |
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Interventions | Dietary counselling verbally and in writing to consume a calculated amount of energy and protein per day (n = 11) versus dietary counselling (as above) and 2x 235 ml of a supplement (1.5 kcal/ml) (n = 11). | |
Outcomes | Survival*, body weight*, BMI*, MUAC*, serum albumin, energy* and protein intake. | |
Notes | Additional data and information on quality obtained from authors. | |
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | High risk | Participants were selected consecutively as they presented with weight loss. No details of the group for the first participant. |
Allocation concealment (selection bias) | High risk | Investigators used alternate allocation. |
Blinding (performance bias and detection bias) Clinical outcomes | High risk | Paper states outcomes not assessed blind. |
Blinding (performance bias and detection bias) Functional outcomes | High risk | Paper states outcomes not assessed blind. |
Blinding (performance bias and detection bias) Nutritional outcomes | High risk | Paper states outcomes not assessed blind. |
Incomplete outcome data (attrition bias) All outcomes | Low risk | 6 dropouts, 5 in the dietary counselling group and 1 in the dietary counselling and supplement group. 5 dropouts because of subsequent GI disease, and 1 due to self exclusion. |
Selective reporting (reporting bias) | Unclear risk | All specified outcomes reported but continuous variables presented as mean (SD) at baseline and end of intervention. Mean change with SDs for weight has been imputed. Data on change in energy intake are presented with precise P values and so mean change (SD) obtained by calculation. Additional data and information on quality obtained from authors. |
Other bias | High risk | Baseline variables given, dietary counselling group and weighed 5 kg less than the dietary counselling group and supplement group. |