Table 1 Demographics of the sample and response rates
From: Migraine and behavior in children: influence of maternal headache frequency
Respondents | Non-respondents | Response rate (%) | |||
|---|---|---|---|---|---|
n | % | n | % | ||
Age | |||||
5 | 90 | 4.8 | 13 | 8.6 | 87.4 |
6 | 350 | 18.9 | 18 | 11.9 | 95.1 |
7 | 310 | 16.7 | 39 | 25.8 | 88.8 |
8 | 370 | 19.9 | 33 | 21.9 | 91.8 |
9 | 465 | 25.1 | 27 | 17.9 | 94.5 |
10+ | 271 | 14.6 | 21 | 13.9 | 92.8 |
Gender | |||||
Girls | 897 | 48.3 | 65 | 43.0 | 93.2 |
Boys | 959 | 51.7 | 86 | 57.0 | 91.8 |
Race | |||||
White | 1,082 | 58.3 | 64 | 42.4 | 94.4 |
Non-white | 699 | 37.7 | 62 | 41.1 | 91.9 |
Not stated | 75 | 4.0 | 25 | 16.6 | 75.0 |
Income class | |||||
A, B | 329 | 17.7 | 16 | 10.6 | 95.4 |
C | 976 | 52.6 | 56 | 37.1 | 94.6 |
D, E | 551 | 29.7 | 79 | 52.3 | 87.5 |
Total | 1,856 | 151 | 92.5 | ||