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Table 4 Suicide deaths and rates over time by mood stabilizer treatment over briefer time periods (0–90 and 0–180 days)

From: Suicide risk in Veterans Health Administration patients with mental health diagnoses initiating lithium or valproate: a historical prospective cohort study

A. Intent-to-Treat Analyses

 

All Patients Initiating Treatment (Intent-to-Treat Cohort)

  
 

Patients Initiating Lithium

Patients Initiating Valproate

  

Follow-up Time

Patients, No.

Suicide Deaths, No.

Rate (per 106 person-days)

Patients, No.

Suicide Deaths, No.

Rate (per 106 person-days)

Conditional Odds Ratio (95% CI)

Rate Ratio

0-90 days

21194

18

9.35

21194

19

9.87

0.95a (0.50-1.81)

0.95

0-180 days

21194

39

10.20

21194

25

6.54

1.56b (0.94-2.58)

1.56

B. Findings Stratified by Initial Treatment Status

 

During Exposure to Initial Treatmentc

  
 

Patients Initiating Lithium

Patients Initiating Valproate

  

Follow-up Time

Patients, No.

Suicide Deaths, No.

Rate (per 106 person-days)

Patients, No.

Suicide Deaths, No.

Rate (per 106 person-days)

Conditional Odds Ratio (95% CI)

Rate Ratio

0-90 days

21194

15

10.00

21194

17

11.30

0.88d (0.44-1.77)

0.88

0-180 days

21194

17

7.99

21194

17

7.93

1.00e (0.51-1.96)

1.01

 

During Period After Stopping/Modifying Initial Treatmentf

  
 

Patients Initiating Lithium

Patients Initiating Valproate

  

Follow-up Time

Patients, No.

Suicide Deaths, No.

Rate (per 106 person-days)

Patients, No.

Suicide Deaths, No.

Rate (per 106 person-days)

Odds Ratio (95% CI)

Rate Ratio

0-90 days

11227

3

6.98

11185

2

4.75

1.49g (0.25-8.95)

1.47

0-180 days

16138

22

13.00

15958

8

4.78

2.72h,i (1.21-6.11)

2.72