RP frequency was computed because of the isolating what amount of adolescents which have RP as well as the amount of teenagers which experienced at least one maternity (including the individuals currently pregnant) multiplied by 100. RB prevalence likewise is actually calculated from the separating the fresh new level of teenagers that have RB in addition to level of adolescents who educated one or more livebirth multiplied because of the 100. Deformalized survey weights had been used if you are calculating the brand new frequency.
I used the ptrendi plan inside Stata13 to execute Cochran–Armitage testing to search for the frequency pattern for each generation playing with new chi-square fact and you can appointment the newest presumptions away from an ingredient design. Cochran–Armitage try is a changed Pearson’s chi-rectangular decide to try and therefore assesses the latest relationship between digital (i.elizabeth. RP and you can RB) and you will ordinal (i.e. season and zoosk incelemeleri you may decades) classes. Multivariate logistic regression analysis having communication effects getting ages (i.age. a long time playing with both three and you may five kinds) and 12 months is actually conducted when using repeated pregnancy and you can birth given that binary benefit details (i.e. sure or no). We counted the latest trend anywhere between several successive questionnaire decades to understand hence symptoms had high changes in incidence. As well, i reviewed style using season and socio-geographic (we.age. area, sorts of quarters, and you will money directory) communication for each generation. With regards to which data, we made use of the around three classification age group as this is actually the latest just categorization and therefore anticipate an acceptable number of cases.
Performance
Certainly one of feminine old 15–24 many years that have at least one maternity (n = 7091), the great majority (53.3%) were discover one of the twenty two–24 12 months olds. Despite the short proportion from teenagers seized by the studies, the newest ratio off fifteen–18 year olds advertised on the survey has increased throughout the years away from seven.64% (letter = 107) inside the 1993 to help you % (letter = 213) during the 2013 (get a hold of Table step 1).
Development study for each age bracket
Prevalence fashion out-of teenagers that have constant maternity regarding the Philippines away from 1993 so you’re able to 2013 by age bracket. Caption: Which profile gift suggestions new weighted incidence from regular maternity using age communities with (a) three and (b) four classes. Teams utilising the three categories is fifteen–18 years old, 19–twenty-one and you may 22–24 yrs old as the four kinds plus fifteen–sixteen years of age, 17–18 years old, 19–two decades dated, 21–twenty two yrs . old and you can 23–24 yrs . old, since the portrayed because of the for each range to your graphs. New x-axis ‘s the survey season arranged into the chronological order as the y-axis the fresh new adjusted prevalence
Frequency fashion off adolescents having repeated birth from the Philippines out of 1993 to help you 2013 by generation. Caption: It figure gifts this new weighted prevalence away from repeated delivery playing with decades communities having (a) three and you can (b) four kinds. Teams with the three kinds tend to be fifteen–18 yrs . old, 19–21 years old and you may twenty-two–24 years of age once the four classes and additionally 15–16 yrs old, 17–18 years old, 19–two decades dated, 21–twenty-two yrs old and you can 23–24 years old, since the portrayed by for every single line towards the graphs. New x-axis ‘s the survey 12 months install when you look at the chronological purchase just like the y-axis this new weighted prevalence
Similar show was indeed based in the regression data. The fresh RP pattern among fifteen–18 year olds remained almost undamaged around the all studies out-of 1993 so you’re able to 2013 [Possibility ratio (OR) =0.93; 95% Count on interval (CI) =0.8step one–1.07]. You will find a similar trend off RB trend in this age classification (Or = 0.87; CI = 0.72–step 1.06) adopting the a noticeable increase in prevalence away from 1993 so you’re able to 1998 (Otherwise = step 3.29; CI = step one.25–8.62). Additionally, this new elderly a long time exhibited a critical refuse for both RP and RB that have unadjusted ORs anywhere between 0.83 so you can 0.87 (discover Desk dos). Analyses having fun with four many years categories exhibited zero significant difference regarding styles in past times explained. Styles among fifteen–sixteen and you may 17–18 year old teens stayed undamaged, whereas a lowering trend are apparent for those old 19–20, 21–22 and you will 23–24.