8 The evidence

Introduction

The evidence statements from 2 reviews are provided by external contractors.

This section lists how the evidence statements link to the recommendations and sets out a brief summary of findings from the economic analysis.

How the evidence links to the recommendations

The evidence statements are short summaries of evidence, in a review, report or paper (provided by an expert in the topic area). Each statement has a short code indicating which document the evidence has come from.

Evidence statement number 1.1 indicates that the linked statement is numbered 1 in the review 1. Evidence statement number 2.1 indicates that the linked statement 1 in the review 2. Where a recommendation is not directly taken from the evidence statements, but is inferred from the evidence, this is indicated by IDE (inference derived from the evidence).

Where the Public Health Advisory Committee (PHAC) has considered other evidence, it is linked to the appropriate recommendation below. It is also listed in the additional evidence section below.

Recommendation 1: evidence statements 1.17, 1.31, 1.32, 1.33, 1.37, 1.40, 1.50, 2.7, 2.8, 2.10; IDE

Recommendation 2: evidence statements 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 1.11, 1.12, 1.15

Recommendation 3: evidence statements 1.17, 1.18, 1.19, 1.20, 1.22, 1.23, 1.24, 1.25, 1.26, 1.27, 1.28, 1.29, 1.30, 1.33, 1.34, 1.35, 1.36, 1.37, 1.38, 1.39, 1.40, 1.41, 1.42, 1.43, 1.44, 1.45, 1.48, 1.49, 1.50; IDE

Recommendation 4: evidence statements 1.3, 1.5, 1.11, 1.13, 1.15, 1.48, 1.51; IDE

Recommendation 5: evidence statements 1.21; IDE

Recommendation 6: evidence statements 1.52, 2.8; IDE

Recommendation 7: evidence statements 2.2, 2.3, 2.4, 2.5, 2.9, 2.10; IDE

Recommendation 8: evidence statements 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 2.10; IDE

Recommendation 9: evidence statements 2.2, 2.3, 2.4, 2.5, 2.8, 2.10, 2.11; IDE

Recommendation 10: evidence statements 2.6, 2.7, 2.10, 2.11; IDE

Economic modelling

Maintenance of a healthy weight and prevention of weight gain in children and adults. Cost effectiveness considerations from a population modelling viewpoint was prepared by NICE instead of a review of economic evaluations and a modelling report.

The paper was based on a conceptual model relating to the weight changes of age and sex cohorts of the population over time, a format developed for modelling exercises in 3 previous NICE guidelines:

From the modelling undertaken in these reports, and given the absence of any substantive new data, brief advice interventions were inferred to be cost effective when their low cost was considered against the cost of weight management interventions.

  • National Institute for Health and Care Excellence (NICE)