Table 2.
Estimated proportion of men who have sex with men for individual studies and combined meta-analysis by behavior, NSFGa, NHANESb, and GSSc surveys, United States, 2017-2021.
| Study name | Time period | Sample size | Estimated prevalence (%; 95% CI) | Q statisticd | P value | I2 (%)e | |||||
| Past 12 months | 3.3 (1.7-4.9) | 6.8 | .08 | 55.6 | |||||||
|
|
GSS | 2018 | 502 | 2.9 (1.4-4.4) |
|
|
|
||||
|
|
GSS | 2021 | 809 | 5.0 (3.3-6.7) |
|
|
|
||||
|
|
NSFG | 2017-2019 | 5206 | 3.1 (2.4-3.8) |
|
|
|
||||
|
|
NHANES | 2017-2020 | 3338 | 2.7 (1.9-3.4) |
|
|
|
||||
| Past 5 years | 4.7 (0.0-33.8) | 14.4 | <.001 | 93.1 | |||||||
|
|
GSS | 2018 | 559 | 2.5 (1.2-3.8) |
|
|
|
||||
|
|
GSS | 2021 | 904 | 7.1 (5.1-9.1) |
|
|
|
||||
| Lifetime sex | 6.2 (2.9-9.5) | 25.9 | <.001 | 88.4 | |||||||
|
|
GSS | 2018 | 500 | 3.1 (1.6-4.6) |
|
|
|
||||
|
|
GSS | 2021 | 807 | 7.8 (5.6-10.0) |
|
|
|
||||
|
|
NSFG | 2017-2019 | 5163 | 7.0 (6.9-7.0) |
|
|
|
||||
|
|
NHANES | 2017-2020 | 3338 | 6.9 (5.6-8.2) |
|
|
|
||||
aNSFG: National Survey of Family Growth.
bNHANES: National Health and Nutrition Examination Survey.
cGSS: General Social Survey.
dQ-statistic follows a chi-square distribution to determine the presence or absence of heterogeneity in a set of studies in a meta-analysis.
eI2 quantifies the degree of heterogeneity in a meta-analysis.