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Table 2 Questionnaire Type (Anonymous vs. Identifiable) and Symptom Reporting

From: Does anonymity increase the reporting of mental health symptoms?

 

Identifiable (n = 296)

Anonymous (n = 315)

Chi2 test statistic (degrees of freedom), P value

Odds ratio (95% confidence interval)

Adjusted* odds ratio (95% confidence interval)

 

n (%)

n (%)

   

PTSD (score on the PCL)

- 17-29

260 (88.4)

253 (81.4)

9.66 (3), P = 0.022

1.00

1.00

- 30-39

22 (7.5)

25 (8.0)

 

1.17 (0.64-2.12)

1.20 (0.66-2.19)

- 40-49 (sub-threshold PTSD)

7 (2.4)

18 (5.8)

 

2.64 (1.09-6.44)

2.74 (1.12-6.69)

- 50+ (probable PTSD)

5 (1.7)

15 (4.8)

 

3.08 (1.10-8.61)

3.18 (1.13-8.90)

Missing data

2

4

   

Common mental disorders

- case (cut off 4+)

52 (18.1)

69 (22.9)

2.08 (1), P = 0.150

1.34 (0.90-2.01)

1.43 (0.95-2.14)

Missing data

8

13

   
  1. *Adjusted for Service.