Analysis
I first analyzed demographic differences in the newest part of women revealing recent sexual activity in addition to their use of specific birth prevention strategies. I utilized logistic regression to design probability of latest sexual intercourse and you will a general multinomial logit model to guess likelihood of having fun with condoms simply, one hormones method, or detachment/almost every other strategy compared to. no birth prevention/unsure for once gender. All the multivariable models modified to possess battle/ethnicity, amounts height, and you will college or university area. As Ny areas will will vary of the socioeconomic updates (SES), school area is chosen as an excellent proxy getting society-level SES. Information on elements of SES, eg students’ household income, otherwise training and you may employment position of their moms and dad(s)/guardian(s), were not amassed into the questionnaire. To attenuate multicollinearity regarding the multivariable habits, we developed an 7-top shared school borough–society variable. Brand new geographic resource group into eight-top varying ‘s the South Bronx, as its pregnancy prices and you can impoverishment speed try constantly greater than that from other Ny areas and communities. We excluded age bracket on the multivariable designs, whilst was not notably of this outcomes immediately following managing to own degrees peak. On account of minimal racial/cultural variation within this borough and you will neighborhood, we were unable to establish communication words towards any of the latest models.
I projected CRI and you may PRI by battle/ethnicity, amounts top, years, borough, and you will area. Together with, t evaluation were used to test having significance of ranging from-group variations on 0.05 level. 2nd, we decomposed all round PRI on the their site link parts pieces (sexual intercourse and you may birth control fool around with) to own demographic subgroups defined of the years, grade, race/ethnicity, and you may school community. Also, the brand new percentage of the real difference in pregnancy exposure due to significantly more energetic birth prevention explore try determined given that: . I fit multivariable linear habits discover adjusted factor quotes having the connectivity ranging from race/ethnicity and you will PRI/CRI, managing having values peak and you will community.
Most of the statistical analyses was conducted using SUDAAN application, and therefore remedied into clustering inherent inside the state-of-the-art questionnaire patterns. 16 The analyses was nested towards survey 12 months, university, and you can class room. Fundamental errors and you can 95% rely on durations were calculated having fun with a primary-acquisition Taylor collection. sixteen Relative important problems (RSE) was basically calculated to own mode and you will rates. Rates having RSEs >30% was listed just like the unreliable. Multivariable models were projected using the LOGISTIC, MULTILOG, and you can REGRESS strategies. 17
Efficiency
As much as 1 / 3rd of full take to away from public highschool females claimed with had intercourse on 3 months in advance of the survey (thirty-two.6%). This new portion of teenager ladies whom said current intercourse varied rather (p step one ). Black pupils were probably are already intimately energetic (35.4%), followed closely by Hispanics (thirty-two.7%) and you can whites (23.4%). The brand new proportion from students who had been already intimately energetic increased that have years and degrees peak. These were large certainly one of women children old 18 and up (59.6%) and you can 12th graders (forty eight.3%), and reduced certainly pupils significantly less than decades 15 (16.8%) and 9th graders (22.4%). People during the Northern and you will Main Brooklyn stated large pricing regarding latest sexual intercourse than those on the Southern Bronx (source class) (40.4% compared to. thirty-two.8%).
Dining table 1
*p dos )pared having whites, Hispanics had been likely to statement playing with no method or “undecided” (23.0% against. ten.7%) the past big date that they had gender. Access to hormone birth prevention is actually lower in all of the categories of intimately productive lady (11.6% among whites, 7.8% certainly one of blacks, and seven.5% one of Hispanics). Ninth (67.4%) and 10th (67.4%) graders was basically likely to statement condom explore than simply twelfth graders (55.3%), however, less likely to statement withdrawal/most other means. Almost 18% out-of 12th-levels females advertised having fun with “withdrawal” otherwise “different means,” compared with 9.5% regarding 9th graders and you will six.1% out-of tenth graders.
