Table 1 .
Sample characteristics at baseline* of parents and their adolescent children according to allocation to programme to encourage communication on sexual health (intervention) or control. Figures are numbers (percentages) of participants
| Total | Intervention | Control | |
|---|---|---|---|
| Parents | |||
| No who participated† | 535 | 269 | 266 |
| Women | 385 (72) | 195 (72) | 190 (71) |
| Men | 150 (28) | 74 (28) | 76 (29) |
| Age (years): | |||
| ≤34 | 54 (10) | 24 (9) | 30 (11) |
| 35-44 | 260 (49) | 134 (50) | 126 (47) |
| 45-54 | 200 (37) | 102 (38) | 98 (37) |
| ≥55 | 21 (4) | 9 (3) | 12 (5) |
| Education: | |||
| Graduated from high school or less | 27 (5) | 7 (3) | 20 (8) |
| Two years of college or some college | 207 (39) | 98 (36) | 109 (41) |
| Graduated from four years of college | 114 (21) | 70 (26) | 44 (17) |
| Attended or completed graduate/professional school | 187 (35) | 94 (35) | 93 (35) |
| Race/ethnicity: | |||
| African-American | 93 (17) | 47 (17) | 46 (17) |
| Asian or Pacific Islander | 77 (14) | 42 (16) | 35 (13) |
| Latino | 85 (16) | 34 (13) | 51 (19) |
| White | 254 (47) | 134 (50) | 120 (45) |
| Other | 26 (5) | 12 (4) | 14 (5) |
| Supervisor at work: | |||
| Yes | 170 (32) | 83 (31) | 87 (33) |
| No | 365 (68) | 186 (69) | 179 (67) |
| Household income: | |||
| ≤$49 999 | 77 (14) | 33 (12) | 44 (17) |
| $50 000-$89 999 | 149 (28) | 81 (30) | 68 (26) |
| $90 000-$124 999 | 145 (27) | 71 (26) | 74 (28) |
| ≥$125 000 | 164 (31) | 84 (31) | 80 (30) |
| Adolescents | |||
| No who participated† | 627 | 315 | 312 |
| Female | 321 (51) | 160 (51) | 161 (52) |
| Male | 306 (49) | 155 (49) | 151 (48) |
| Age (years): | |||
| 10 | 21 (3) | 8 (3) | 13 (4) |
| 11 | 129 (21) | 64 (20) | 65 (21) |
| 12 | 127 (20) | 66 (21) | 61 (20) |
| 13 | 137 (22) | 67 (21) | 70 (22) |
| 14 | 107 (17) | 50 (16) | 57 (18) |
| 15 | 82 (13) | 48 (15) | 34 (11) |
| ≥16 | 24 (4) | 12 (4) | 12 (4) |
*No significant differences in baseline demographic data between groups (P>0.05).
†No of parents who filled out self report core surveys and No of adolescents who filled out self report surveys at all four follow-ups.