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. Author manuscript; available in PMC: 2020 Dec 1.
Published in final edited form as: J Adolesc Health. 2019 Jul 2;65(6):738–744. doi: 10.1016/j.jadohealth.2019.04.026

Table 1.

Demographic information for each wave of data collection

Wave 3a Wave 4a Wave 5a Wave 6a
Frequency (%)
Gender
Female 499 (55.82) 444 (57.51) 435 (62.59) 460 (60.69)
Male 395 (44.18) 328 (42.49) 260 (37.41) 298 (39.31)
Ethnicity
Hispanic 286 (31.99) 249 (32.09) 230 (33.09) 247 (32.59)
White 267 (29.87) 232 (29.90) 191 (27.36) 218 (28.76)
African American 237 (26.51) 195 (25.13) 188 (27.05) 197 (25.99)
Others 104 (11.63) 100 (12.89) 86 (12.37) 96 (12.66)
Gradeb
10th 8 (0.89) - - -
11th 635 (71.03) 2 (0.26) - -
12th 220 (24.61) 565 (73.09) - -
other 31 (3.47) 22 (2.85) - -
High school - - 5 (0.72) 4 (0.53)
College/trade school - 142 (18.37) 490 (70.20) 495 (65.30)
Working - 42 (5.43) 139 (20.00) 209 (27.57)
Not in school and not working - - 61 (8.78) 50 (6.60)
Living situation*
Both parents 415 (46.42) 348 (44.96)
One parent and one stepparents 158 (17.67) 131 (16.93)
Mother or Father (only) 240 (26.85) 198 (25.58)
Grandparents and others 81 (9.06) 97 (12.53)
Family (e.g., parents) 392 (56.32) 382 (50.53)
Friends/Roommates 196 (28.28) 172 (22.75)
Girlfriend/Wife or boyfriend/Husband 68 (9.81) 135 (17.86)
Alone 37 (5.34) 67 (8.86)
Age 17.04 (0.77) 17.96 (0.75) 19.06 (0.79) 20.03 (0.76)

Note:

a

Data on sexting involvement was available for Waves 3–6

b

Responses options for grade and living situation were modified as participants were aged. Because we measured age only T1, the rest of waves were estimated based on survey completion each wave given information at T1.