Table 1. Characteristics of study populations of included studies.
| Study ID | Country, year of data collection, reference | Age range | Median (IQR) Age | Mean (SD) | Total sample size | Response Rates % | Definition of current smoking as measured in the study |
|---|---|---|---|---|---|---|---|
| 1 | Congo, 2010,[29] | 5–83 | - | 29 (16) | 1412 | 93.4 | Active smoking |
| 2 | Ethiopia, 2008–09,[26] | 15–64 | - | - | 5500 | 81.3 | Current smokerNo/Yes |
| 3 | Ghana, 2008,[11] | 15–49 | - | - | 9484 | 98.9 | Currently consumed cigarettes |
| 4 | Ghana, 2007–08,[12] | 14–105 | 31 | - | 6258 | 88.0 | Smokes at least 100 cigarettes in his or her lifetime and smokes nowadays |
| 5 | Kenya, March to July 2010,[30] | >18 | 35 (26,50) | - | 4037 | 93.0 | Tobacco smoking- Currently daily (within the last 30 days) |
| Tobacco smoking- Currently but not daily (within the last 30 days) | |||||||
| 6 | Kenya, 2010,[19] | >18 | - | 33.4 (11.6) | 2061 | - | Current cigarette smokers |
| 7 | Kenya, 2011,[13] | >18 | - | - | 72292 | - | Currently smoked at least 100 cigarettes and smoking at the time of the interview |
| Smoked daily | |||||||
| 8 | Malawi, 2009,[15] | 25–64 | - | - | 5206 | 94.5 | Tobacco smokers |
| 9 | Nigeria, 2008,[16] | 15–59 | - | - | 48871 | 98.3 | Use of smoking tobacco- cigarette, pipe or other |
| 10 | Nigeria, 2007,[25] | 25–64 | - | 43.8 (13.7) | 1458 | - | Prevalence of tobacco smoking |
| 11 | Rwanda, 2008–2009,[27] | 15–80 | - | 38.3 | 1824 | 97.7 | Currently smoking at least one cigarette per day |
| (Huye- rural) | - | - | - | 788 | - | ||
| (Kigali- urban) | - | - | - | 1036 | - | ||
| 12 | Senegal, 2010,[23] | >15 | - | 43.4 (17.8) | 1424 | - | Tobacco smokers- active smoking |
| 13 | Sierra Leone, 2009,[14] | 25–64 | - | - | 4997 | 91.0 | Current tobacco use (smoke and smokeless) |
| 14 | South Africa, 2008,[17] | >15 | - | 40 (16.7) | 16800 | 69.0 | Non-smoker or smoker |
| 15 | Togo, October 2009 to January 2010,[20] | >18 | - | 45 (10) | 2000 | - | Consumed at least one cigarette per day |
| 16 | Uganda, December 2008 to November 2009,[31] | >13 | - | - | 6663 | 65.6 | Current cigarette smoker of both manufactured and local cigarettes |
| 17 | Uganda, 2011,[44] | >13 | - | 34.4 | 6867 | 93.9 | Current daily smoking |
| 18 | Uganda, July to September 2012,[22] | >18 | - | 36.5 (15.2) | 4142 | - | Currently consume tobacco |
| 19 | Zambia, December 2008 to 2009,[21] | >25 | - | - | 2093 (total) | - | Current smoking- do you currently smoke any tobacco products such as cigarettes, cigars or pipes |
| (Kasama- rural) | - | - | - | 1198 | - | ||
| (Kaoma- rural) | - | - | - | 895 | - | ||
| 20 | Zambia, 2011,[28] | >25 | - | - | 1627 | - | Current smoking- do you currently smoke any tobacco products such as cigarettes, cigars, or pipes |
| 21 | Zambia, 2008,[24] | >25 | - | 33.4 (11.6) | 1928 | - | Currently smoked cigarettes |
SD- Standard deviation; IQR-Interquartile range;-Data not available