Table 4 Summary of findings for studies of acceptable quality
Author, Year | Origin of study sample | Study population | Interventions | Time of follow-up | Outcome variables | SMT superior to control |
|---|---|---|---|---|---|---|
Asthma | ||||||
 Balon, 1998 [84] | Chiropractic patients | Children (7–16 years) with mild or moderate asthma | SMT vs. Sham | 2 and 4 months | FEV1 PEF Quality of life | No |
Infantile Colic | ||||||
 Olafsdottir, 2001 [87] | Public health care clinics, pediatric outpatient clinic at University hospital, general practitioners, chiropractors and direct referrals | Infants with colic | SMT vs. Sham | 8–14 days after intervention | Parent’s global perceived improvement or crying time | No |
Hypertension | ||||||
 Goertz, 2016 [81] | Community in Iowa, USA | Adults with pre-hypertension or hypertension | SMT vs. Sham | Immediately and 6 weeks | Blood pressure | No |
 Ward, 2015 [80] | Community in Texas, USA | Adults with hypertension | SMT vs. Sham | Immediately and 10 min | Blood pressure, pulse pressure, mean arterial pressure and heart rate | No |
Dysmenorrhea | ||||||
 Hondras, 1999 [37] | Chiropractic patients | Women with primary dysmenorrhea | SMT vs. Sham | 1 h | VAS or MMDQ | No |
Migraine | ||||||
 Chaibi, 2017 [82] | University hospital, general practitioners and community in Oslo Counties, Norway | Adults with migraine | SMT vs. Sham | Immediately, 3 months | Migraine days | No (Sham significantly superior to SMT) |
|  |  |  |  | 6 and 12 months | Migraine duration, intensity or headache index | No |