Such policies could benefit primarily more advantaged populations, while those in greater need would remain under-served without extending the services currently provided.
We find that there is considerable evidence that media campaigns to promote smoking cessation are often less effective, sometimes equally effective, and rarely more effective among socioeconomically disadvantaged populations relative to more advantaged populations.
As such, health resources are subject to market influences and primarily meet the needs of socio-economically more advantaged populations.
The study by Glazier et al. showed that different primary care models served different patient populations, with non-salaried health centre physicians caring for more advantaged populations, and salaried physicians caring for more disadvantaged populations.
Participants in our study may also be more advantaged than the general population, and thus, the generalisability of our findings to all pregnancies, or more diverse populations, may be reduced.
It is possible that optimal child stimulation can help compensate for subtle brain insults related to PCB exposure (Jacobson and Jacobson 2004), decreasing the likelihood of observing significant effects in more advantaged subgroups of the population.
This intervention was found to have more effects in advantaged populations, including elder mothers' children and children whose father were waged laborers, because BRAC provided less attention to adolescent and households with lower income during implementation [ 34].
First, and in line with public health goals, the disadvantaged population improves quicker than the more advantaged one.
Of the various broad-based population-health intervention approaches to smoking cessation, most have greater impact in more advantaged groups [ 82].
Many of the more advantaged could opt to retire on their resources, which fewer of the less advantaged could do.
