Table 2. Distribution of studies included in a systematic review of the effect of multisectoral interventions for health on health system performance, according to WHO region and design.
| Characteristics | No. of studies (%) (n = 62) |
|---|---|
| WHO region | |
| African Region | 12 (19.4) |
| Region of the Americas | 27 (43.5) |
| South-East Asia Region | 7 (11.3) |
| European Region | 6 (9.7) |
| Eastern Mediterranean Region | 1 (1.6) |
| Western Pacific Region | 8 (12.9) |
| Multiple regions | 1 (1.6) |
| Income level (World Bank classification) | |
| High | 22 (35.5) |
| Upper middle | 23 (37.1) |
| Lower middle | 5 (8.1) |
| Low | 11 (17.7) |
| Multiple countries of different income levels | 1 (1.6) |
| Primary data collection strategiesa | |
| Secondary data analysis | 28 (45.2) |
| Semi-structured or in-depth interviews | 28 (45.2) |
| Quantitative surveys | 17 (27.4) |
| Policy document analysis | 16 (25.8) |
| Focus group discussion or workshop | 10 (16.1) |
| Observation | 4 (6.5) |
| Primary data analysis methodsa | |
| Quantitative data analysis (e.g. descriptive, inferential and predictive) | 32 (51.6) |
| Qualitative analysis (both thematic and content) | 29 (46.8) |
| Mixed analysis | 10 (16.1) |
| Social network analysis | 3 (4.8) |
WHO: World Health Organization.
a Some studies may have used more than one data collection or analysis method.