Table 2.
Demographics of participants in the United States—composition of the conventional modality survey (CMS) and app-based survey samples (comprising respondents from unknown locales across the United States) compared with the composition of the US 2020 census.
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|
CMS survey sample (total n=2464), n (%) | App-based survey sample (total n=10,244), n (%) | Benchmark survey (US 2020 census; %a) | |
| Age (years) | ||||
|
|
18-19 | 128 (5.19) | 1036 (10.11) | 7 |
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20-24 | 340 (13.8) | 3395 (33.14)b | 17 |
|
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25-29 | 378 (15.34) | 2526 (24.66)b | 18 |
|
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30-34 | 492 (19.97) | 1794 (17.51) | 19 |
|
|
35-45 | 1126 (45.7)b | 1493 (14.57)c | 39 |
|
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Median (1st quartile-3rd quartile) | 33.0 (27-39) | 26.0 (22-31) | —d |
| Educational level | ||||
|
|
No formal education or only primary education | 175 (7.1) | 38 (0.37)c | 9 |
|
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Secondary (high school) or equivalent | 702 (28.49) | 2848 (27.8) | 26.5 |
|
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Tertiary (at least some postsecondary education) | 1587 (64.41) | 7340 (71.65)b | 63 |
|
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No answer | 0 (0) | 18 (0.18) | 1.5 |
| Locale | ||||
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Rural | 409 (16.6) | 1243 (12.13) | 14 |
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Suburban | 1195 (48.5)c | 4523 (44.15)c | 55 |
|
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Urban | 860 (34.9) | 4464 (43.58)b | 31 |
|
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No answer | 0 (0) | 14 (0.14) | 0 |
| Relationship status | ||||
|
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Never married | 1004 (40.75)b | 6189 (60.42) | 62 at the age of 26 years; 30 at the age of 33 years |
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Married or engaged | 1202 (48.78)c | 3621 (35.35) | — |
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Divorced or separated | 258 (10.47)c | 421 (4.11) | — |
|
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No answer | 0 (0) | 13 (0.13) | — |
aPercentage of those aged 18-45 years for all demographics except education level, which is percentage of those aged ≥25 years.
bOverrepresentation compared with benchmark.
cUnderrepresentation compared with benchmark.
dNot available.