Table 1 Study characteristics of 49 studies measuring HRQL in patients with a TBI

Number of HRQL instruments

1 instrument

39

2 instruments

7

> = 3 instruments

3

Number of assessment time points

1 time point

30

2 time points

9

> = 3 time points

10

Patient sample size

0-50

11

50-100

13

100-200

13

200-300

5

300-500

4

500+

3

Patient population: age

Child studies

10

Adult studies (15+ years)

39

Assessment time points

Pre-injury

5

Baseline

8

3-4 weeks

22

3 months

10

6 months

9

1 year

18

1-3 years

7

3-5 years

11

5-10 years

5

>10 years

5

Proxy report ¹

Yes

20

No

15

n.a.

14