Repository and techniques
The 2015–2017 NSFG ‘s the earliest analysis document create as the ages range are stretched out-of 15–forty-two in order to 15–49 in . Certain estimates out-of current birth-control fool around with for the fifteen–forty two a long time to have 2015–2017 investigation are given with the NSFG key analytics page so you’re able to accommodate comparisons with previous age. One of other information, NSFG provides more information about contraception explore among U.S. females old 15–49. The brand new fieldwork plan, interviews posts, or any other questionnaire tips act like early in the day surveys (5). NSFG is as one planned and funded of the Federal Center to have Fitness Analytics (NCHS) and some other programs of You.S. Company out of Health and Human Properties. Every quotes within this report is weighted in order to mirror the feminine family society old 15–forty-two of All of us at the midpoint off 2015–2017 choosing ( NSFG was 65.3% full, 66.7% getting girls respondents, and 63.6% for male respondents.
Analytics for it statement had been introduced making use of the Questionnaire methods from inside the SAS app variation nine.step 3. Percent was in fact compared using one or two-tailed t screening within 5% level. No modifications have been made having multiple comparisons. A good adjusted the very least squares regression was applied to evaluate distinctions across the decades and you will education.