Table 1.
Basic characteristics of the included literature.
| Study | Number of cases (T/C) | Gender (M/F) | Intervention time | Interventions |
Random method | Blinding method | Allocation concealment | Baseline consistency | |
|---|---|---|---|---|---|---|---|---|---|
| Intervention group | Control group | ||||||||
| Baran et al., 2019 | 30/30 | Unclear | 4 weeks | Abdominal massage | No specific treatment | Random allocation in individual bags | No | Reported | Consistent |
| Orhan et al., 2022 | 20/20 | 5/35 | 4 weeks | Abdominal massage + usual care | Usual care | Computer randomization | No | Reported | Consistent |
| Dogan et al., 2022 | 37/37 | 14/60 | 4 weeks | Abdominal massage + lifestyle advice | Placebo therapeutic ultrasound + lifestyle advice | Computer randomization | No | Unclear | Consistent |
| Faghihi et al., 2021 | 18/18 | 21/15 | 5 days | Abdominal massage | No specific treatment | Computer randomization | Single-blinding | Reported | Consistent |
| Faghihi et al., 2022 | 27/26 | 24/29 | 2 weeks | Abdominal Massage + oral administration of sweet almond oil | Oral administration of sweet almond oil | Computer randomization | No | Unclear | Consistent |
| Fan Ming Na et al., 2020 | 38/38 | 32/44 | 2 weeks | Abdominal massage + conventional treatment and nursing | Conventional treatment and nursing (diet, exercise, blood sugar control, gastrointestinal motility promotion, etc.) | Random number table | No | Unclear | Consistent |
| Fekri et al., 2021 | 29/34 | 19/44 | 10 days | Abdominal massage + lifestyle training | Lifestyle training | Random number table | No | Reported | Consistent |
| Lee Young Ae et al., 2013 | 20/20 | 16/24 | 3 days | Abdominal massage | No specific treatment | Assigned according to discharge date | No | Unclear | Consistent |
| Liang Bing Lian et al., 2020 | 50/50 | 64/36 | 7 days | Abdominal massage + usual care of traditional Chinese medicine | Usual care of traditional Chinese medicine | Random number table | No | Unclear | Consistent |
| Liu Wen Xia et al., 2017 | 51/50 | Unclear | 4 weeks | Abdominal Massage + oral administration of bisacodyl | Oral administration of bisacodyl | Mentioned but not described | No | Unclear | Consistent |
| McClurg et al., 2016 | 16/16 | 15/17 | 6 weeks | Abdominal massage + lifestyle advice | Lifestyle advice | Mentioned but not described | No | Unclear | Consistent |
| Mokhtare et al., 2020 | 48/47 | 32/63 | 2 weeks | Abdominal massage + polyethylene glycol | Polyethylene glycol | Computer randomization | No | Unclear | Consistent |
| Olgun et al., 2022 | 30/30 | 20/40 | 4 weeks | Abdominal massage | No specific treatment | Computer randomization | No | Unclear | Consistent |