Table 2 Pooled crude estimates of prevalence of smokers in Nigeria
From: Current prevalence pattern of tobacco smoking in Nigeria: a systematic review and meta-analysis
| Â | Both sexes | Men | Women | |||||
|---|---|---|---|---|---|---|---|---|
Prevalence % (95% CI) | I2%, P-value | Prevalence % (95% CI) | I2%, P-value | Prevalence % (95% CI) | I2%, P-value | |||
Nation-wide | Current | 10.4 (9.0–11.7) | 98.2, <  0.001 | 13.4 (10.0–16.8) | 98.4, <  0.001 | 3.6 (2.8–4.4) | 95.2, <  0.001 | |
Ever | 17.7 (15.2–20.2) | 98.6, <  0.001 | 22.8 (17.5–28.2) | 98.7, <  0.001 | 6.3 (4.8–7.7) | 96.8, <  0.001 | ||
Geopolitical zone | North-central | Current | 10.3 (6.0–14.3) | 98.7, <  0.001 | 8.1 (4.3–11.9) | 94.8, <  0.001 | 3.6 (0.7–6.4) | 97.1, <  0.001 |
Ever | 18.4 (12.2–24.7) | 97.9, <  0.001 | 24.0 (13.6–34.5) | 98.0, <  0.001 | 7.3 (5.7–8.9) | 21.4, 0.280 | ||
North-east | Current | 32.1 (30.0–34.1) | 0.0, 0.593 | 44.8 (41.7–47.8) | 0.0, 0.323 | 18.6 (16.2–21.1) | 0.0, 0.444 | |
Ever | 43.6 (31.5–55.7) | 89.6, <  0.001 | 54.7 (51.6–57.7) | 0.0, 0.619 | 28.9 (11.9–45.9) | 86.9, <  0.001 | ||
North-west | Current | 5.4 (3.7–7.2) | 55.9, 0.078 | 9.5 (7.0–11.9) | 0.0, 0.507 | 4.3 (1.0–7.6) | 77.7, 0.011 | |
Ever | 12.4 (7.9–16.9) | 84.1, <  0.001 | 29.2 (25.3–33.1) | – | – | – | ||
South-east | Current | 8.6 (4.1–13.0) | 97.3, <  0.001 | 15.8 (11.6–19.9) | 0 | 13.0 (9.3–16.7) | 0 | |
Ever | 10.5 (3.7–17.4) | 97.7, <  0.001 | 26.8 (24.5–29.1) | – | – | – | ||
South-south | Current | 13.0 (8.7–17.3) | 97.7, <  0.001 | 10.2 (5.9–14.5) | 74.4, 0.008 | 1.8 (0.6–3.0) | 49.3, 0.116 | |
Ever | 16.9 (11.4–22.3) | 97.9, <  0.001 | 15.5 (10.7–20.2) | 83.9, <  0.001 | 3.3 (0.7–6) | 90.6, <  0.001 | ||
South-west | Current | 8.9 (6.9–11.0) | 97.7, <  0.001 | 9.5 (6.2–12.8) | 96.6, <  0.001 | 2.78 (1.7–3.8) | 92.6, <  0.001 | |
Ever | 17.1 (12.8–21.4) | 98.8, <  0.001 | 15.6 (9.7–21.5) | 96.6, <  0.001 | 7.3 (3.4–11.2) | 97.4, <  0.001 | ||
Settings | Urban | Current | 10.7 (8.8–12.6) | 98.0, <  0.001 | 13.2 (9.8–16.6) | 97.7, <  0.001 | 4.2 (3.0–5.5) | 94.7, <  0.001 |
Ever | 18.1 (14.6–21.6) | 98.6, <  0.001 | 20.5 (13.7–27.3) | 97.8, <  0.001 | 6.7 (4.3–9.1) | 96.0, <  0.001 | ||
Rural | Current | 9.1 (5.1–13.0) | 98.7, <  0.001 | 15.3 (2.5–33.2) | 98.9, <  0.001 | 7.0 (2.1–16.2) | 97.7, <  0.001 | |
Ever | 16.8 (10.8–22.8) | 98.1, <  0.001 | 18.5 (15.9–21.1) | 0 | 18.5 (16.4–20.7) | 0 | ||
Mixed | Current | 10.2 (7.3–13.1) | 98.1, <  0.001 | 11.8 (4.2–27.8) | 99.4, <  0.001 | 1.0 (0.04–1.9) | 61.3, 0.075 | |
Ever | 17.3 (12.6–21.9) | 98.8, <  0.001 | 30.3 (27.5–33.0) | 85.8, <  0.001 | 2.6 (1.5–3.7) | 90.3, <  0.001 | ||
Mean cigarette per person per day a | Nation-wide | 10.1 (6.1–14.2) | 97.9, <  0.001 | – | – | – | – | |