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. 2016 Nov 17;8:685–694. doi: 10.2147/CEOR.S119971

Table S1.

Characteristics of the eligible population by survey participation

Survey participation
p-Value
No, N
(Column %)
Yes, N
(Column %)
Total, n=6075 3082 2992
Mean age (years ± SD) 57±19 56±18 0.0260
Gender 0.6676
 Male, n=2781 1403 (45.52) 1387 (45.48)
 Female, n=3292 1679 (54.48) 1613 (53.93)
Ethnicity 0.1357
 Non-Hispanic, n=3354 1677 (88.92) 1677 (90.40)
 Hispanic, n=387 209 (11.08) 178 (9.60)
Preferred language <0.0001
 English, n=5624 2805 (90.98) 2819 (94.22)
 Non-English, n=451 278 (9.02) 173 (5.78)
Insurance <0.0001
 Medicare, Medicaid, and MassHealth, n=2391 1369 (44.40) 1022 (34.16)
 Private, n=3684 1714 (55.60) 1970 (65.84)
Marital status 0.0069
 Single, n=2510 1307 (45.70) 1203 (42.15)
 Married, partnered, n=3204 1553 (54.30) 1651 (57.85)
Clinic type <0.0001
 Ataxia, n=117 82 (2.66) 35 (1.17)
 Epilepsy, n=520 327 (10.61) 193 (6.45)
 General neurology, n=2489 1168 (37.89) 1321 (44.15)
 Memory, n=473 222 (7.20) 251 (8.39)
 Movement, n=1057 584 (18.94) 473 (15.81)
 Neuromuscular, n=291 232 (7.53) 59 (1.97)
 Neurobehavioral, n=376 202 (6.55) 174 (5.82)
 Sleep, n=224 0 (0) 224 (7.49)
 Stroke, n=528 266 (8.63) 262 (8.76)

Notes: Two-sided t-tests were used to calculate p-values to compare the mean values of patient age between the groups. The chi-squared test of independence was used to calculate the p-values to test whether the categorical variables were associated with increased rates of adherence.