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Table 4 Dichotomous outcomes from original studies (*included in pooling)

From: Effect of acustimulation on nausea and vomiting and on hyperemesis in pregnancy: a systematic review of Western and Chinese literature

Studies (author, year) Number of subjects, intervention Outcome measurement Outcomes cured rate n/N (%) Included in pooling
  Treatment group Comparator   Treatment group Comparator  
Dundee 1988 Acupressure P6 N = 119 Sham acupressure N = 112 Emetic symptoms: cured rate based on subjective report 32/119 (26.89 %) 17/112 (15.18 %) *
Dundee 1988 Acupressure P6 N = 119 No treatment N = 119 Emetic symptoms: cured rate based on subjective report 32/119 (26.89 %) 15/119 (12.60 %)  
Jiang 2012 Acupressure P6 + ear acupressure N = 65 Conventional IV fluid therapy N = 65 Nausea, vomiting, rate of food intake, ketonuria: Cured rate 42/65 (64.6 %) 25/65 (38.5 %) *
Norheim 2001 Acupressure P6 N = 48 Placebo acupressure N = 49 Intensity of symptoms: VAS. Improved rate. 34/48 (71 %) 31/49 (63 %) *
Neri 2005 Acupuncture + P6 acupressure N = 43 Metoclopramide infusion + Vit B 12 complex N = 38 Vomiting episodes: improved rate after session 3 24/43 (55.81 %) 14/38 (36.84 %) *
Zhang 2005 Acupuncture + moxibustion (AMC) N = 50 Chinese herbal medicine N = 50 NVP, ketones, electrolytes, rate of food intake: cured rate 21/50 (42 %) 9/50 (15.25 %)  
Zhang 2005 Acupuncture + moxibustion (AMC) N = 50 IV fluid therapy + conventional therapy N = 50 NVP, ketones, electrolytes, rate of food intake: cured rate 21/50 (42 %) 5/50 (9.09 %) *
Liu 2007 Acupuncture + IV therapy N = 47 IV fluid therapy N = 47 Treatment effect: Nausea, vomiting, food intake 38/47 (80.85 %) 23/47 (48.93 %) *
Wang 2008 Acupuncture + IV therapy N = 53 IV fluid therapy N = 42 Nausea, vomiting, electrolytes 41/53 (77.35 %) 17/42 (0.47 %) *
Mao 2009 Acupuncture + IV therapy N = 30 IV fluid therapy + Chinese herbal medicine N = 30 Total treatment effect: electrolytes and vomiting rate: cured rate 27/30 (90 %) 3/30 (10 %)  
Mao 2009 Acupuncture + IV therapy N = 30 IV fluid therapy + conventional therapy N = 30 Ketones: cured rate 27/30 (90 %) 4/30 (13.33 %) *
Liu 2011 TCM Acupuncture N = 30 TCM Moxibustion N = 30 Nausea and vomiting, ketones, rate of food intake: cured rate 20/30 (66.67 %) 19/30 (63.33 %) *
Ma 2013 Acupuncture + IV therapy N = 30 IV fluid therapy N = 30 Total treatment effect: ketones, vomiting rate: cured rate 28/30 (93.3 %) 10/30 (33.33 %) *
Ou 2001 Ear acupressure N = 30 Chinese herbal medicine N = 30 Total treatment effect: electrolytes, nausea and vomiting rate: cured rate 3/30 (10.0 %) 3/30 (10.0 %) *
Fan 1995 TCM moxa N = 151 Chinese herbal decoction N = 151 Nausea and vomiting Total: Cured rate 146/151 (96.7 %) 89/151 (58.9 %) *
Xu 2009 TCM moxa N = 26 IV fluid therapy N = 25 Nausea and vomiting, ketones, rate of food intake: Cured rate 17/26 (65.38 %) 9/25 (36.0 %) *
Lu 2012 TCM Moxa + IV fluid + conventional therapy N = 32 IV fluid therapy + conventional therapy N = 32 Nausea and vomiting, ketones, rate of food intake: Cured rate 10/32 (31.25 %) 5/32 (15.62 %) *