Current fertility: a first glimpse from the 1983 National Demographic Survey.

This paper highlights initial findings from the 1983 National Demographic Surveys (NDS) based on a 25% sub-sample of the survey respondents. The discussion focuses on measures of current fertility as well as on selected fertility "predictors" for the 3 major island groups -- Luzon, Visay, and Mindanao. Owing to the restrictive nature of the data set, no statistical tests are performed to measure the influence on fertility of these explanatory variables.

Report on matching procedures of a dual record system in the southern Philippines.

There are generally three stages to the development of rules for matching vital events data from two sources covering the same population: (a) establishing a set of "true" matches and nonmatches; (b) determining the best tolerance limits for each single characteristic which might be used in matching; and (c) experimenting to determine the set or sets of characteristics and the weights to be used in classifying a pair of records as matched or nonmatched. Specific examples, based on early matching experiments with data from the dual record system of the Mindanao Center for Population Studies (MCPS), are presented. Successive application of different sets of characteristics (differential valence rule) to the remaining unmatched events produced an acceptable rule for matching in this study.

Purposive concealment of death in household surveys in Misamis Oriental Province.

Summary The randomized response technique was used in a household survey of approximately 2,000 rural and 2,000 urban households in Misamis Oriental Province in the southern Philippines in order to determine the extent of purposive concealment of death. The estimated number of deaths deliberately not revealed to the interviewers was 50 per cent or higher. Adjusted crude death rates of 11.