Table 4: Metaanalysis of acupuncture for posttraumatic stress disorder. PTSD: posttraumatic stress disorder; CAPS, clinicianadministered PTSD scale; HAMD, Hamilton depression rating scale; HAMA, Hamilton anxiety rating scale; EA, electroacupuncture; moxa, moxibustion; SSRI, selective serotonin reuptake inhibitors; 
(a) PTSD scale (CAPS). 
 Study or subgroup  EA + Moxa  SSRI   Mean difference  Mean difference  Mean  SD  Total  Mean  SD  Total  Weight  IV, random, 95% CI  IV, random, 95% CI 

Zhang et al., 2010 [25]  −36.15  21.72  69  −35.58  22.12  69  1.0%  −0.57 [−7.88, 6.74]  
Zhang et al., 2010 [26]  −17.17  1.84  46  −13.95  1.76  46  99.0%  −3.22 [−3.96, −2.48]  Total (95% CI)    115    115  100.0%  −3.19 [−3.93, −2.46] 
Heterogeneity: = 0.00, = 0.50, df = 1 ( = 0.48); = 0%   
Test for overall effect: = 8.55 ( 0.00001)   


(b) Depression (HAMD). 
 Study or subgroup  EA + Moxa  SSRI   Mean difference  Mean difference  Mean  SD  Total  Mean  SD  Total  Weight  IV, random, 95% CI  IV, random, 95% CI 

Zhang et al., 2010 [25]  −7.42  5.58  69  −6.55  5.1  69  6.2%  −0.87 [−2.65, 0.91]  
Zhang et al., 2010 [26]  −7.27  0.93  46  −5.45  0.91  46  93.8%  −1.82 [−2.20, −1.44]  Total (95% CI)    115    115  100.0%  −1.76 [−2.21, −1.31] 
Heterogeneity: = 0.02, = 1. 04,df = 1 ( = 0.31); = 4%   
Test for overall effect: = 7.72 ( 0.00001)   


(c) Anxiety (HAMA). 
 Study or subgroup  EA + Moxa  SSRI   Mean difference  Mean difference  Mean  SD  Total  Mean  SD  Total  Weight  IV, random, 95% CI  IV, random, 95% CI 

Zhang et al., 2010 [25]  −6.51  5.26  69  −6.08  5.43  69  2.9%  −0.43 [−2.21, 1.35]  
Zhang et al., 2010 [26]  −5.48  0.75  46  −4.32  0.75  46  97.1%  −1.16 [−1.47, −0.85]  Total (95% CI)    115    115  100.0%  −1.14 [−1.44, −0.84] 
Heterogeneity: = 0.00, = 0.62, df = 1 ( = 0.43); = 0%   
Test for overall effect: = 7.39 ( 0.00001)   

