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Table 2 Risk of bias assessments for included trials

From: Are we failing young people not in employment, education or training (NEETs)? A systematic review and meta-analysis of re-engagement interventions

ID

Total classification

Sequence generation (selection bias)

Allocation concealment (selection bias)

Blinding (performance bias)

Outcome completeness

Selective outcome reporting

Other biases

1

High

+

?

+

+

-

-

2

Unclear

+

+

+

?

?

+

3

High

+

+

-

-

+

?

4

High

-

-

?

?

+

?

5

High

-

+

+

-

?

+

6

High

-

+

-

-

?

-

7

High

+

+

NA

-

+

+

8

High

?

-

-

+

-

?

9

High

-

-

?

?

-

+

10

High

-

?

?

+

-

?

11

High

NA

NA

NA

-

-

+

12

Unclear

NA

NA

NA

+

?

+

13

High

NA

NA

?

-

-

+

14

High

-

-

?

-

-

?

15

Unclear

?

?

+

?

?

+

16

High

-

-

?

-

-

?

17

High

NA

NA

-

-

+

?

18

High

-

-

?

?

?

?

  1. + low risk of bias; ? unclear risk of bias; - high risk of bias; NA not applicable