Table 2.
The characteristics of study participants according to joker status.
| Sociodemographic characteristics | Joker statusa | P b | ||
|
|
Joker (n=263) | Nonjoker (n=33,063) |
|
|
| US region, n (%) |
|
|
<.001 | |
|
|
Northeast | 55 (20.9) | 5911 (17.88) |
|
|
|
Midwest | 59 (22.4) | 8,575 (25.94) |
|
|
|
South | 98 (37.4) | 11,249 (34.02) |
|
|
|
West | 38 (14.5) | 6,826 (20.65) |
|
|
|
Unknown | 13 (4.9) | 502 (1.52) |
|
| Age, mean (SD) | 44.9 (0.7) | 44.76 (0.08) | .89 | |
| Sex, n (%) |
|
|
.84 | |
|
|
Male | 90 (34.2) | 11,113 (33.61) |
|
|
|
Female | 173 (65.8) | 21,950 (66.39) |
|
| Race/ethnicity, n (%) |
|
|
.16 | |
|
|
Hispanic | 6 (2.3) | 1281 (3.87) |
|
|
|
Non-Hispanic White | 216 (82.1) | 26,764 (80.95) |
|
|
|
Non-Hispanic Black | 11 (4.2) | 1657 (5.01) |
|
|
|
Other or multiple races | 19 (7.2) | 2615 (7.91) |
|
|
|
Unknown | 11 (4.2) | 746 (2.26) |
|
| Marital status, n (%) |
|
|
<.01 | |
|
|
Married | 118 (44.9) | 15,268 (46.18) |
|
|
|
Never married | 62 (23.6) | 8689 (26.28) |
|
|
|
Divorced, separated, or widowed | 56 (21.3) | 4554 (13.77) |
|
|
|
Unknown | 27 (10.3) | 4552 (13.77) |
|
| Education, n (%) |
|
|
.02 | |
|
|
High school graduate or less | 45 (17.1) | 4937 (14.93) |
|
|
|
Some college or associate’s degree | 117 (44.5) | 13,145 (39.76) |
|
|
|
College degree | 56 (21.3) | 6732 (20.36) |
|
|
|
Graduate training or advanced degree | 42 (16.0) | 6739 (20.38) |
|
|
|
Unknown | 3 (1.1) | 1510 (4.57) |
|
| Self-reported annual earnings (US$), n (%) |
|
|
.08 | |
|
|
<35,000 | 96 (36.5) | 9918 (30.00) |
|
|
|
35,000-74,999 | 78 (29.7) | 11,094 (33.55) |
|
|
|
≥75,000 | 62 (23.6) | 9096 (27.51) |
|
|
|
Unknown | 27 (10.3) | 2955 (8.94) |
|
| Facebook activity, median (IQR) |
|
|
|
|
|
|
Friends | 227 (138-369) | 132 (56-270) | <.001 |
|
|
Fan pages | 128 (57-260) | 48 (16-117) | <.001 |
|
|
Groups | 20 (9-36) | 7 (2-19) | <.001 |
aBased on data from a 6-month observation period (from December 15, 2010 to June 16, 2011). Joker: posted a doctor joke; nonjoker did not post a doctor joke.
bChi-square test used in comparison of proportions, t test used in comparison of means, and Man-Whitney test used for numbers of friends, fan pages, and groups on Facebook.