Skip to main content

Table 2 Result of individual variable meta-regression models for each stratified meta-analysis

From: What is the potential for bisexual men in China to act as a bridge of HIV transmission to the female population? Behavioural evidence from a systematic review and meta-analysis

  Stratified meta-analyses
Study Characteristic Marital Status of MSM Had female partners
in last six months
Condom use
at last sex act
Consistent condom use
in last six months
  Pool estimate %
(95% CI), n
Meta-regression
(β, p -value)
Pool estimate %
(95% CI), n
Meta-regression
(β, p -value)
Pool estimate %
(95% CI), n
Meta-regression
(β, p -value)
Pool estimate %
(95% CI), n
Meta-regression
(β, p -value)
Language of article:         
   Chinese 16.4 (13.9-19.3), n = 29 0.187 25.8 (21.7-30.4), n = 30 0.058 45.4 (37.5-53.6), n = 9 -0.282 26.9 (23.8-30.2), n = 13 0.009
   English 18.2 (15.2-21.5), n = 13 p = 0.312 26.8 (24.2-29.5), n = 16 p = 0.686 33.6 (29.0-38.6), n = 3 p = 0.058 23.4 (19.1-28.4), n = 5 p = 0.960
Sample size:         
   < 200 19.8 (13.1-28.9), n = 10 -0.335 25.9 (19.8-33.2), n = 10 -0.056 45.4 (37.5-53.6), n = 9   28.6 (24.7-32.8), n = 11 -0.313
   ≥ 200 16.3 (14.3-18.4), n = 32 p = 0.090 26.3 (23.4-29.5), n = 36 p = 0.730 33.6 (29.0-38.6), n = 3 - 23.2 (20.4-26.3), n = 7 p = 0.139
Recruitment method:         
   MSM venues 18.7 (16.6-21.0), n = 30   28.6 (25.5-32.0), n = 33   38.4 (32.8-44.3), n = 9   25.1 (22.5-27.9), n = 15  
   Non MSM venues 12.6 (8.6-18.1), n = 10 -0.203 21.1 (16.2-26.9), n = 11 -0.139 59.4 (47.4-70.3), n = 3 0.368 34.2 (23.6-46.6), n = 3 0.107
   Not reported 13.5 (8.4-21.0), n = 2 p = 0.035 16.8 (12.9-21.6), n = 2 p = 0.059 - p = 0.068 - p = 0.679
Sampling method:         
   RDS/snowball 17.2 (14.5-20.2), n = 17   25.7 (21.7-30.3), n = 21   45.9 (36.4-55.7), n = 4   25.8 (21.8-30.4), n = 8  
   Other methods 21.7 (18.1-25.8), n = 8 0.013 26.5 (22.9-30.3), n = 5 0.009 37.0 (27.4-47.7), n = 3 0.122 27.5 (19.7-36.9), n = 2 0.089
   Not reported 14.6 (11.1-19.0), n = 17 p = 0.886 26.6 (22.5-31.1), n = 20 p = 0.899 41.6 (28.6-55.9), n = 5 p = 0.128 24.9 (21.8-28.4), n = 8 p = 0.268
Time period:         
   2000-2004 16.8 (12.2-22.9), n = 5 0.023 32.6 (27.0-38.7), n = 9 -0.236 - - 24.1 (21.4-27.1), n = 4 0.093
   2005-2009 17.1 (15.0-19.3), n = 37 p = 0.922 24.9 (22.1-27.9), n = 37 p = 0.134 41.4 (35.5-47.5), n = 12   26.1 (22.8-29.7), n = 14 p = 0.535
  1. Table showing the pool estimate (%), 95% confidence interval (CI), number of studies (n), meta-regression coefficient (β) and significance of β (p-value). p-values in bold print represent significant associations (p < 0.10).