ResultsThe odds ratio for pregnancy in the psychological intervention condition = .83, 95% CI [.75, .93]. The results also showed that the longer an intervention's follow-up period was, the less the prevention effect. Quality assessment of included studies indicated that all used a treatment manual and reported attrition. It also showed that most studies reported the reasons for drop-out and assessed the facilitators' adherence to the intervention protocol. The proportion of variability due to chance amongst studies was I2 = 22%. Duval and Tweedie's Trim and Fill showed a difference between the observed and the adjusted values. The adjusted value, representing a conservative estimate of effect size, was OR = .891, 95% CI [.777, .999]ConclusionsAltogether, these results support the efficacy of psychological interventions aimed at preventing unintended pregnancy through contraception.
Question
ResultsThe odds ratio for pregnancy in the psychological intervention condition = .83, 95% CI [.75, .93]. The results also showed that the longer an intervention's follow-up period was, the less the prevention effect. Quality assessment of included studies indicated that all used a treatment manual and reported attrition. It also showed that most studies reported the reasons for drop-out and assessed the facilitators' adherence to the intervention protocol. The proportion of variability due to chance amongst studies was I2 = 22%. Duval and Tweedie's Trim and Fill showed a difference between the observed and the adjusted values. The adjusted value, representing a conservative estimate of effect size, was OR = .891, 95% CI [.777, .999]ConclusionsAltogether, these results support the efficacy of psychological interventions aimed at preventing unintended pregnancy through contraception.
Solution
The text you provided is a summary of a research study. It seems to be discussing the effectiveness of psychological interventions in preventing unintended pregnancies. The odds ratio of .83 suggests that the intervention was somewhat effective, as an odds ratio less than 1 indicates a decrease in odds of the outcome (in this case, pregnancy). The confidence interval (.75, .93) suggests that the researchers are 95% confident that the true odds ratio lies within this range.
The text also mentions that the longer the intervention's follow-up period, the less effective the prevention. This could mean that the effects of the intervention diminish over time.
The quality assessment of the studies included in this research seems to be good, as all used a treatment manual and reported attrition. Most studies also reported the reasons for drop-out and assessed the facilitators' adherence to the intervention protocol.
The I2 value of 22% suggests that there is low heterogeneity among the studies, meaning the results are fairly consistent across studies.
The Trim and Fill method was used to adjust for publication bias. The adjusted odds ratio of .891, with a 95% confidence interval of (.777, .999), is a conservative estimate of the effect size.
In conclusion, the results support the efficacy of psychological interventions aimed at preventing unintended pregnancy through contraception.
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