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Table 5 Quality of the reviews by type of health behaviour

From: The effectiveness of interventions to change six health behaviours: a review of reviews

Health

Behaviour

High quality

reviews

Well conducted

reviews

Reviews of

variable quality

Total

Type of evidence*

Potential for bias**

1

++

1&2

++

2

++

1

+

1&2

+

2

+

1

-

1&2

-

2

-

 

Smoking

8

3

0

14

10

1

6

3

3

48

Physical Activity

5

1

2

2

7

1

2

1

1

24

Alcohol

3

2

0

0

3

1

1

1

3

15

Healthy eating

0

0

0

1

12

0

0

1

0

13

Illicit drug use

1

1

0

0

0

0

0

1

1

4

Sexual risk taking

1

1

0

1

0

0

2

3

0

8

  1. Notes: columns are not totalled because some reviews were included in more than one health behaviour
  2. *Study designs included within the systematic reviews: 1 = RCT; 2 = non-RCT; 1&2 = include both study designs.
  3. ** ++ = low potential; - = high potential