Table 2.
Subgroup analysis of all studies based on study setting, sex of the participants, tools used measure ADHD, subtypes of ADHD, and study quality
| Subgroups | Studies, n | Prevalence (%) | 95% CI | Heterogeneity between groups (P value) |
|---|---|---|---|---|
| Setting | ||||
| Community based | 9 | 7.19 | 5.59–9.19 | 0.439 |
| Hospital based | 3 | 8.74 | 5.66–13.27 | |
| Gender | ||||
| Males | 7 | 10.60 | 9.05–12.38 | < 0.001 |
| Females | 7 | 5.20 | 4.38–6.36 | |
| Subtype of ADHD | ||||
| Inattentive | 8 | 2.95 | 2.23–3.89 | 0.539 |
| Hyperactive | 8 | 2.77 | 1.67–4.57 | |
| Combined | 8 | 2.44 | 2.01–2.96 | |
| Inattentive type by sex | ||||
| Males | 6 | 4.05 | 3.11–5.27 | 0.004 |
| Females | 6 | 2.21 | 1.61–3.03 | |
| Hyperactive type by sex | ||||
| Males | 6 | 3.61 | 1.88–6.82 | 0.062 |
| Females | 6 | 1.50 | 0.78–2.87 | |
| Combined type by sex | ||||
| Males | 5 | 3.63 | 2.87–5.87 | < 0.001 |
| Females | 5 | 1.52 | 1.11–2.08 | |
| Quality of studies | ||||
| High | 10 | 7.04 | 5.61–8.79 | 0.041 |
| Moderate and poor | 2 | 11.25 | 7.61–16.33 | |
| Tools used to measure ADHD | ||||
| DSM | 2 | 6.81 | 5.67–8.15 | 0.476 |
| Other | 10 | 7.62 | 5.92–9.75 |