Table 1.
Characteristics of sampled trials (N=100).
| Clinical area | Values | |
| Health promotion, n | 42 | |
| Smoking cessation | 11 | |
| Physical activity | 8 | |
| Weight | 7 | |
| Alcohol | 3 | |
| Eating disorder | 3 | |
| Lifestyle behaviors | 2 | |
| Physical activity and diet | 2 | |
| Diet | 2 | |
| Sexual health | 1 | |
| Tanning | 1 | |
| Adolescent health | 1 | |
| General health management | 1 | |
| Mental health, n | 32 | |
| Cancer, n | 4 | |
| Respiratory illnesses, n | 3 | |
| Neurology, n | 3 | |
| Diabetes, n | 3 | |
| Dentistry, n | 2 | |
| Otolaryngology, n | 2 | |
| Cardiovascular, n | 2 | |
| Pain, n | 1 | |
| Autonomic arousal, n | 1 | |
| Discharge from emergency department, n | 1 | |
| Parathyroid disorder, n | 1 | |
| HIV, n | 1 | |
| Cancer screening, n | 1 | |
| Women’s health, n | 1 | |
| Design, n | ||
| Superiority | 94 | |
| Equivalence | 4 | |
| Noninferiority | 2 | |
| Blinding, n | ||
| Double | 1 | |
| Single | 13 | |
| None | 46 | |
| Not stated | 40 | |
| Web-based intervention, n | ||
| Website | 77 | |
| Website plus additional element | 10 | |
| Internet (other) | 13 | |
| Control arm, n | ||
| Website | 14 | |
| Internet (other) | 14 | |
| Waiting list group | 32 | |
| Noninternet intervention | 28 | |
| No intervention | 9 | |
| Not stated | 3 | |
| CONSORTa flow diagram presentedb, n (%) | 79 (79.0) | |
| CONSORT-EHEALTHc checklist presentedd, n (%) | 26 (38.2) | |
aCONSORT: Consolidated Standards of Reporting Trials.
bThe denominator for percentage values is equal to 100, as all trials were published after the original CONSORT flow diagram (1996).
cCONSORT-EHEALTH: Consolidated Standards of Reporting Trials of Electronic and Mobile Health Applications and online TeleHealth.
dThe denominator for percentage values is equal to the number of trials published since the formulation of the CONSORT-EHEALTH (2011; N=68).