A system of random permuted blocks within the participating center strata was used.
The installation of cables could increase the volume of stable strata participating in the support system.
Count data (number of cases and non-cases of each outcome) were provided by each participating centre by strata of maternal region of origin, maternal age and parity in a spreadsheet.
Count data (number of cases and non-cases of severe maternal morbidity) were provided by each participating centre by strata of maternal region of birth, maternal age and parity.
One interesting observation from PAC-Man was the decision by the majority of ICUs to participate in stratum B. In other words, clinicians in most of the ICUs felt that some attempt to monitor central hemodynamics was required, even though the alternative monitoring devices employed have undergone even less scrutiny in large randomized trials than the PAC.
Within each stratum and for each participating center, participants will be randomly allocated (1 1) to the experimental or control group.
Similarly, by using the Principal Component Analysis (instead of direct questions about income), we were able to classify the participating households into socioeconomic strata.
Among the participating PHCCs, 11 were from Stratum I, 11 were from Stratum II, and 13 were from Stratum III, distributed among 14 AC.
The remaining three strata were formed by communities that consented to participate after March 2006: Stratum 4 comprised 10 moderate-sized communities in the Katherine region; Stratum 5 comprised 4 moderate-sized East-Arnhem communities; and Stratum 6 comprised two large communities in the Top End.
All ages, races and socioeconomic strata participated, and unlike some marches, it was abundantly peaceful.
Choe found that people all across China, and in nearly every social strata, participated in business affairs.
