TABLE 4. Subgroup Analysis a

Outcome/subgroup b No. of studies OR (95% CI) I2 (%) P interaction
Anxiety        
 Females 3 3.58 (1.90-6.76) 63 .56
 Males 2 5.12 (1.85-14.17) NA  
 Childhood abuse 8 2.82 (2.43-3.27) 0 .05
 Adult abuse 1 7.21 (2.81-18.51) NA  
 Case-control design 1 5.05 (0.23-109.93) NA .76
 Cohort design 7 3.10 (2.41-4.00) 48  
Depression        
 Females 6 2.20 (1.76-2.75) 0 .05
 Males 2 3.94 (2.28-6.83) NA  
 Childhood abuse 14 2.62 (2.10-3.26) 59 .05
 Adult abuse 1 8.87 (2.75-28.66) NA  
 Case-control design 6 2.00 (1.31-3.05) 68 .12
 Cohort design 10 2.95 (2.29-3.82) 48  
Eating disorders        
 Females 8 2.34 (1.70-3.20) 10 .99
 Males 1 2.28 (0.13-40.53) NA  
 Case-control design 8 2.65 (1.87-3.77) 28 .70
 Cohort design 3 3.08 (1.58-6.01) 27  
Schizophrenia        
 Females 2 1.39 (0.77-2.51) NA .88
 Males 1 1.26 (0.41-3.94) NA  
 Case-control design 1 0.66 (0.11-4.05) NA .41
 Cohort design 2 1.46 (0.84-2.52) NA  
Suicide attempts        
 Females 8 3.24 (1.90-5.53) 71 .13
 Males 4 7.20 (3.01-17.22) 0  
 Childhood abuse 14 3.85 (2.75-5.40) 93 .30
 Adult abuse 1 10.91 (1.60-74.48) NA  
 Case-control design 4 4.71 (2.15-10.36) 47 .73
 Cohort design 15 4.04 (2.78-5.87) 64  
 White race 5 3.89 (2.00-7.58) 58 .40
Native        
 American 1 2.20 (0.70-6.96) NA  

a. CI = confidence interval; NA = not applicable; OR = odds ratio.

b. Only feasible analyses are shown; no data were available for subgroup
analyses on the outcomes of posttraumatic stress disorder, somatoform
disorders, or sleep disorders.