Analysis
We earliest analyzed market variations in new portion of ladies reporting present intercourse as well as their accessibility certain contraceptive methods. We made use of logistic regression to model likelihood of current intercourse and you may a general multinomial logit model so you’re able to estimate likelihood of playing with condoms simply, any hormone method, otherwise withdrawal/most other approach against. zero contraception/unclear for a change intercourse. Most of the multivariable designs adjusted getting battle/ethnicity, amounts height, and you may university society. As the New york neighborhoods have a tendency to vary from the socioeconomic standing (SES), university neighborhood was selected because the an excellent proxy to own community-peak SES. Details about elements of SES, such as for example students’ home money, otherwise studies and you may a position reputation of their parent(s)/guardian(s), were not amassed for the survey. To attenuate multicollinearity regarding the multivariable designs, i built an 7-peak joint school borough–community adjustable. The fresh new geographical source group into 7-height varying is the South Bronx, as its pregnancy costs and you will impoverishment rate was continuously more than that from almost every other Ny counties and neighborhoods. We excluded generation in the multivariable models, since it wasn’t significantly of the consequences immediately after dealing with to own grade height. Because of restricted racial/ethnic adaptation within this borough and you can people, we had been incapable of present communications conditions for the any of the new patterns.
I estimated CRI and you may PRI of the race/ethnicity, stages peak, many years, borough, and community. In addition to, t examination were used to test for requirement for anywhere between-category differences in the 0.05 peak. Next, we decomposed the overall PRI into the their parts parts (sexual intercourse and you can birth control explore) getting demographic subgroups laid out of the years, grade, race/ethnicity, and you can college or university community. Also, this new portion of the real difference during pregnancy chance due to far more active birth prevention use was computed due to the fact: . I match multivariable linear models to obtain adjusted factor rates for new relationships ranging from race/ethnicity and PRI/CRI, handling to possess degree top and you can society.
All the analytical analyses was used playing with SUDAAN application, and that remedied into clustering inherent into the advanced survey patterns. sixteen Most of the analyses was in fact nested towards questionnaire seasons, school, and you will class. Practical errors and you can 95% depend on menstruation was indeed computed using an initial-order Taylor series. sixteen Relative practical problems (RSE) were calculated for function and percentages. Quotes having RSEs >30% is listed since the unreliable. Multivariable habits was in fact estimated with the LOGISTIC, MULTILOG, and you can REGRESS strategies. 17
Efficiency
Just as much as one third of one’s full shot of personal high school women said with had intercourse on 90 days before brand new survey (32.6%). The fresh new portion of teenager girls exactly who advertised latest sexual intercourse ranged somewhat (p step 1 ). Black colored youngsters was indeed most likely become currently intimately energetic (35.4%), followed closely by Hispanics (thirty two.7%) and you can whites (23.4%). The ratio of people who have been already intimately energetic increased with age and you can levels top. These people were higher one of females pupils old 18 and up (59.6%) and you can 12th graders (48.3%), and you may low one of pupils under decades 15 (sixteen.8%) and you will 9th graders (twenty two.4%). Youngsters when you look at the Northern and you can Main Brooklyn reported higher rates of latest sexual intercourse as opposed to those regarding Southern area Bronx (source classification) (40.4% versus. 32.8%).
Table step 1
*p 2 )pared having whites, Hispanics was in fact likely to declaration using no approach or “uncertain” (23.0% versus. 10.7%) the very last time that they had intercourse. Access to hormones contraception try lower in all sets of intimately productive lady (eleven.6% among whites, eight.8% certainly one of blacks, and seven.5% one of Hispanics). Ninth (67.4%) and you can 10th (67.4%) graders were more likely to report condom have fun with than just twelfth graders (55.3%), but less likely to declaration detachment/almost every other strategy. Nearly 18% out of 12th-degree girls reported using “withdrawal” otherwise “additional method,” compared with 9.5% off 9th graders and you may six.1% away from tenth graders.
