Table 5 The pooled estimates of drinking rates (last 30 days) among different groups by using DerSimonian-Laird random-effect model
From: Estimate of adolescent alcohol use in China: a meta-analysis
Outcome variable | Subgroup | Number of studies | Pooled estimate | 95 % CI | I 2 | Q between |
|---|---|---|---|---|---|---|
Middle school male students’ drinking rate | ||||||
Location south | 11 | 21.8 | 18.8, 25.2 | 93.9 | 2.47 | |
Location north | 7 | 28.7 | 21.0, 37.8 | 98.3 | ||
Middle school female students’ drinking rate | ||||||
Location east | 14 | 16.6 | 14.6, 18.9 | 92.0 | 3.26 | |
Location middle | 3 | 8.5 | 3.9, 17.4 | 96.8 | ||
Location west | 3 | 17.0 | 9.8, 27.8 | 97.7 | ||
Collector (Yes) | 17 | 16.8 | 13.8, 20.2 | 95.3 | 4.0* | |
Collector (No) | 3 | 8.1 | 3.9, 16.1 | 97.2 | ||
High school male students’ drinking rate | ||||||
Location east | 7 | 33.4 | 28.9, 38.2 | 94.6 | 5.05* | |
Location middle | 2 | 24.4 | 7.0, 58.1 | 99.5 | ||
Location west | 3 | 54.2 | 35.7, 71.6 | 98.1 | ||
Collector (Yes) | 10 | 39.3 | 33.5, 45.5 | 97.9 | .956 | |
Collector (No) | 2 | 24.0 | 7.0, 56.7 | 98.5 | ||
Definition (Yes) | 6 | 29.1 | 21.7, 37.8 | 98.4 | 5.024* | |
Definition (No) | 6 | 44.6 | 34.1, 55.5 | 98.2 | ||
High school female students’ drinking rate | ||||||
Location east | 7 | 21.5 | 17.3, 26.2 | 95.8 | 2.89 | |
Location middle | 2 | 10.9 | 3.7, 28.1 | 98.5 | ||
Location west | 3 | 30.8 | 14.9, 53.1 | 98.7 | ||
Collector (Yes) | 10 | 24.1 | 18.9, 30.2 | 98.3 | 3.63* | |
Collector (No) | 2 | 10.1 | 3.9, 23.9 | 96.2 | ||
Definition (Yes) | 6 | 15.4 | 11.5, 20.1 | 98.9 | 5.68* | |
Definition (No) | 6 | 28.4 | 18.6, 40.8 | 96.4 | ||