Table 1.
Systematic Reviews Reporting Smoking Interventions (n = 2) | Systematic Reviews Reporting Diet and/or Physical Activity Interventions (n = 37) | Systematic Reviews Reporting Diet-only Interventions (n = 19) | Systematic Reviews Reporting Physical-Activity-only Interventions (n = 37) | |
---|---|---|---|---|
Time period of included intervention studies in the reviews | ||||
Range in years: | 1976 to 2016 | 1974 to 2018 | 1975 to 2018 | 1974 to 2019 |
Search strategies: | ||||
Databases only (n) | 0 | 3 | 1 | 2 |
Supplementary searches (n) | 2 | 34 | 18 | 35 |
Included study designs: | ||||
RCT only (n) | 2 | 24 | 18 | 27 |
RCT + other design (n) | 0 | 13 | 1 | 10 |
Number included studies in the systematic reviews | ||||
Range (n) | 16 to 88 | 5 to 113 | 4 to 89 | 3 to 113 |
Median (n) | N/A | 21 (IQR 14 to 46) | 23 (IQR 14 to 44) | 23 (IQR 10 to 49) |
Pooled sample sizes included in the systematic reviews | ||||
Range (n women) | 6192 to >26,000 | 363 to 273,182 | 537 to 182,139 | 214 to 598,185 |
Median (n women) | N/A | 6920 (IQR 2748 to 12,007) | 8558 (IQR 2786 to 11,487) | 4350 (IQR 1768 to 14,601) |
Not reported (n) | 1 * | 0 | 0 | 1 * |
Countries of intervention studies included in the systematic reviews (reported for n systematic reviews) | Not reported for 6 systematic reviews | Not reported for 6 systematic reviews | Not reported for 7 systematic reviews | |
HICs represented in the included interventions | 1. Australia 2. Canada 3. Denmark 4. France 5. Greece 6. Ireland 7. Netherlands 8. New Zealand 9. Norway 10. Poland 11. Spain 12. Sweden 13. UK 14. USA |
1. Australia 2. Belgium 3. Canada 4. Croatia 5. Denmark 6. Finland 7. France 8. Germany 9. Greece 10. Ireland 11. Italy 12. Japan 13. Netherlands 14. New Zealand 15. Norway 16. Poland 17. Portugal 18. South Korea 19. Spain 20. Sweden 21. Switzerland 22. Taiwan 23. UK 24. USA |
1. Australia 2. Belgium 3. Canada 4. Chile 5. Denmark 6. Finland 7. Germany 8. Greece 9. Ireland 10. Italy 11. Netherlands 12. New Zealand 13. Norway 14. Spain 15. Sweden 16. Taiwan 17. UK 18. USA |
1. Australia 2. Belgium 3. Canada 4. Croatia 5. Denmark 6. Finland 7. France 8. Germany 9. Greece 10. Ireland 11. Italy 12. Japan 13. Netherlands 14. New Zealand 15. Norway 16. Poland 17. Portugal 18. South Korea 19. Spain 20. Sweden 21. Switzerland 22. Taiwan 23. UK 24. USA |
UMICs represented in the included interventions | 1. Argentina 2. Brazil 3. Columbia 4. Cuba 5. Mexico |
1. Argentina 2. Brazil 3. China 4. Colombia 5. Iran 6. Kosovo 7. Mexico 8. Serbia 9. South Africa 10. Thailand 11. Turkey |
1. Argentina 2. Brazil 3. China 4. Columbia 5. Indonesia (East Java) 6. Iran 7. Kosovo 8. Mexico 9. South Africa 10. Turkey |
1. Argentina 2. Brazil 3. China 4. Colombia 5. Iran 6. Kosovo 7. Mexico 8. Serbia 9. South Africa 10. Thailand 11. Turkey |
LMICs represented in the included interventions | None | 1. Benin 2. Egypt 3. India 4. Pakistan |
1. Egypt 2. India |
1. Benin 2. Egypt 3. India 4. Pakistan |
LICs represented in the included interventions | None | None | 1. Gambia | None |
Footnote: Income status of the countries defined according to the World Bank data for the current 2020 fiscal year “low-income economies are defined as those with a GNI per capita, calculated using the World Bank Atlas method, of $1025 or less in 2018; lower middle-income economies are those with a GNI per capita between $1026 and $3995; upper middle-income economies are those with a GNI per capita between $3996 and $12,375; high-income economies are those with a GNI per capita of $12,376 or more” [93]. Abbreviations: HICs = High Income Countries; UMICs = Upper Middle-Income Countries; LMICs -= Lower Middle-Income Countries; LICs = Lower Income Countries; IQR = Interquartile Range; N/A = not applicable to calculate median with only two systematic reviews.* One smoking systematic review reported >26,000 women but not the exact number; one physical activity only systematic review reported the number of neonates rather than the number of women.