Demographic and Health Surveys Methodology - Measure DHS

More documents

Recommendations

Info

d. Tabulation: Each sibling is tabulated three times, once according to her/his highest agegroup accumulating the exposure she/he contributes to that group, once in the middle agegroup accumulating middle age group exposure, and once in the lowest age groupaccumulating lowest age group exposure. (In CSPRO and ISSA, the same table is used,effectively summing the accumulations within each age group.)Once the numerators and denominators are properly established, age-specific mortality rates are obtainedby the division of the numerators by the corresponding denominators and multiplying by 1000. Thegeneral mortality rate for age 15-49 is obtained by multiplying the age-specific mortality rates by theproportion of respondents in the five-year age group and then summing the age-distribution-adjustedmortality rates.Handling of Missing ValuesSiblings whose survival status is unknown to the respondent are excluded from both numerators anddenominators. Dates of birth are calculated from current age for living siblings and age at death andnumber of years ago sibling died for dead siblings. Dates of birth and death are imputed where age, ageat death, or number of years ago is missing or unknown, taking into consideration of sibling’s birth orderand number of children (information collected for dead siblings only).Notes and ConsiderationsThe DHS maternal mortality module questionnaire collects information from respondents (female andmale about all of their siblings born to the same mother, starting with the oldest. For living siblings, thedate of birth in the recode data file is calculated by subtracting the age from the date of interview. Fordead siblings, the date of birth is calculated by subtracting the sum of the responses on age at death andthe number of years ago the death occurred from the date of interview. To calculate the date of death, thenumber of years ago the death occurred is subtracted from the date of interview. After these calculations,month of date of birth and date of death are assigned by subtracting a random number between 0 and 11and making sure that the birth order and minimum birth intervals are maintained.However, the age distribution of siblings is very much different than the age distribution of the populationsince only eligible women and men can report on their siblings. For example if a girl or boy is sixteenyears old and has only siblings younger than 15 years, she or he will not be reported. The same holds trueat the upper end of the eligible age range. Thus the age distribution of siblings is a curve with minimumsat the ends of the eligible age range of respondents and a maximum at about the midpoint of the eligibleage range (30 to 35 years). In order to properly calculate general or total rates, age-specific rates must beadjusted to a more representative age distribution. The distribution of respondents is used for thisadjustment.One might think that the calculation of mortality rates is biased because the (living) respondent is notincluded. Similarly, people with no siblings are not included since there is no one to report on them.However, it has been shown by German Rodriguez that these two potential biases cancel each other out,under the assumption that mortality rates are unrelated to the size of the sibship.Another important issue is location. The DHS does not collect information on the residence of neithersiblings who died nor of the residence during the exposure period of both living and dead siblings. Theresidence at the time of interview of respondents is not necessarily the same as that of their siblings.Therefore, DHS usually does not publish adult mortality rates by area.Guide to DHS Statistics 155 Updated September 2006
ADULT MORTALITY (DIRECT METHOD)Statistics: Age-specific Maternal Mortality Rates; Total Maternal Mortality Rate; MaternalMortality Ratio (Direct Method)DefinitionA. Coverage: Women age 15-49 years.B. Numerator:Number of female siblings of respondents who died during pregnancy, delivery or within twomonths of delivery in the period 0-6, 7-13, and 0-13 years prior to the interview by five-year agegroup at time of death. Maternal deaths of sisters 50 years and older are added to the number ofmaternal deaths of sisters 45-49 years.G. Denominator:Number of years of exposure of female siblings of respondents during the period 0-6, 7-13, and 0-13 years prior to the survey by five-year age group.H. Calculation of Maternal Mortality Rates:e. Numerator: Deaths are tabulated in the same way as for adult age-specific mortalityrates and then multiplied by the proportion of deaths that occurred during pregnancy,delivery or within two months of delivery.f. Denominator: Women-years of exposure are calculated in the same way as for adultage-specific mortality.Once the numerators and denominators are properly established, age-specific maternal mortality rates areobtained by the division of the numerators by the corresponding denominators and multiplying by100,000. The total maternal mortality rate (for age 15-49) is obtained by multiplying the age-specificmortality rates by the proportion of respondents in the five-year age group and then summing the agedistribution-adjustedmaternal mortality rates. The total proportion of deaths maternal is calculated bydividing the total maternal mortality rate by the general 15-49 adult mortality rate of women.I. Calculation of the Maternal Mortality Ratio:The maternal mortality ratio is calculated by dividing the total maternal mortality rate by thegeneral fertility rate (see page 32) for the period and is expressed per 100,000 births bymultiplying the product by 1000.Handling of Missing ValuesSiblings whose maternal status at the time of death are unknown to the respondent or are missing in thedata set are allocated to maternal deaths in the proportion they are to deaths of any maternal status. Foreach age group of siblings, the number of deaths of known maternal status is divided by the number ofdeaths of any status to get the proportion of maternal deaths. This proportion is then multiplied by thenumber of deaths of unknown status to calculate the number of deaths to add to the known maternaldeaths to get the total number of maternal deaths in each age group.Guide to DHS Statistics 156 Updated September 2006
Page 1 and 2:
Guide to DHS statisticsDemographic
Page 3 and 4:
GUIDE TO DHS STATISTICSShea Oscar R
Page 5 and 6:
Preferred Method of Contraception f
Page 7 and 8:
ForewordDHS surveys collect a wealt
Page 9 and 10:
MODEL QUESTIONNAIRESThe basic appro
Page 11 and 12:
The Guidelines for the Main Survey
Page 13 and 14:
The figure on the previous page ill
Page 15 and 16:
Before using an exported DHS data f
Page 17 and 18:
In this list “xx” represent dig
Page 19 and 20:
At data entry time, contrary to the
Page 21 and 22:
CalculationInitial sample weights a
Page 23 and 24:
DHS uses century month codes extens
Page 25 and 26:
AgeTotal ChildrenTotal ChildrenSmoo
Page 27 and 28:
All Women Ever-Married Women All Wo
Page 29 and 30:
it is not possible to merge the hou
Page 31 and 32:
ename = (HVIDX$01, HV101$01, HV102$
Page 33 and 34:
III. Guide to Individual Statistics
Page 35 and 36:
Births in the month of interview ar
Page 37 and 38:
Statistics: Total Fertility RateDef
Page 39 and 40:
Statistics: Crude Birth RateDefinit
Page 41 and 42:
CHILDREN EVER BORN AND LIVINGStatis
Page 43 and 44:
BIRTH INTERVALSStatistics: Percent
Page 45 and 46:
AGE AT FIRST BIRTHStatistics: Perce
Page 47 and 48:
TEENAGE PREGNANCY AND MOTHERHOODSta
Page 49 and 50:
4. Traditional methods: The number
Page 51 and 52:
CURRENT USE OF CONTRACEPTIVE METHOD
Page 53 and 54:
Changes over TimeThe list of specif
Page 55 and 56:
Median: Women with a missing value
Page 57 and 58:
KNOWLEDGE OF THE FERTILE PERIODStat
Page 59 and 60:
Statistics: Median Age at Contracep
Page 61 and 62:
INFORMED CHOICEStatistics:A. Percen
Page 63 and 64:
B. In the standard recode file, the
Page 65 and 66:
REASONS FOR DISCONTINUING CONTRACEP
Page 67 and 68:
FUTURE USE OF CONTRACEPTIONStatisti
Page 69 and 70:
PREFERRED METHOD OF CONTRACEPTION F
Page 71 and 72:
CONTACT OF NONUSERS WITH FAMILY PLA
Page 73 and 74:
ATTITUDES TOWARD FAMILY PLANNINGSta
Page 75 and 76:
NUMBER OF CO-WIVESStatistics: Perce
Page 77 and 78:
MEDIAN AGE AT FIRST MARRIAGEDefinit
Page 79 and 80:
Statistics: Median Age at First Sex
Page 81 and 82:
B. Denominator: Number of all birth
Page 83 and 84:
Notes and ConsiderationsAssumptions
Page 85 and 86:
FERTILITY PREFERENCESNEED FOR FAMIL
Page 87 and 88:
ii. Say they do not know whether th
Page 89 and 90:
NEED FOR FAMILY PLANNING—NOT CURR
Page 91 and 92:
5. Unmet need for spacing.a) Includ
Page 93 and 94:
AssumptionsWomen who are not curren
Page 95 and 96:
1. Higher age group: A woman’s ag
Page 97 and 98:
INFANT AND CHILD MORTALITYEARLY CHI
Page 99 and 100:
Statistics: Neonatal Mortality Rate
Page 101 and 102:
MORTALITY RATE CALCULATIONNeonatal
Page 103 and 104:
Statistics: Perinatal Mortality Rat
Page 105 and 106:
HIGH-RISK FERTILITY BEHAVIOR RISK R
Page 107 and 108:
MATERNAL AND CHILD HEALTHANTENATAL
Page 109 and 110:
Handling of Missing Values“Don’
Page 111 and 112: ANTENATAL CAREPrenatal tetanus toxo
Page 113 and 114: DELIVERY CAREStatistics: Percent Di
Page 115 and 116: POSTNATAL CAREStatistics: Percent D
Page 117 and 118: Calculation5. All vaccinations—ch
Page 119 and 120: CHILD MORBIDITY PREVALENCE AND TREA
Page 125 and 126: CHILDHOOD MORBIDITY PREVENTION: DIA
Page 127 and 128: WOMEN’S USE OF SMOKING TOBACCOSta
Page 129 and 130: Handling of Missing ValuesExcluded
Page 131 and 132: Decisions on AlternativesAn alterna
Page 133 and 134: Respondents with missing reports fo
Page 135 and 136: C. Denominators:Calculation1. Numbe
Page 137 and 138: C. Denominators:Calculation1. Numbe
Page 139 and 140: B. Numerators:1. Number of days bre
Page 141 and 142: MICRONUTRIENT INTAKE AMONG CHILDREN
Page 143 and 144: MICRONUTRIENT INTAKE AMONG WOMENSta
Page 145 and 146: CHILDREN’S AND WOMEN’S NUTRITIO
Page 147 and 148: CHILDREN’S AND WOMEN’S NUTRITIO
Page 149 and 150: ReferencesCenters for Disease Contr
Page 151 and 152: CalculationA. The assignment of ant
Page 153 and 154: ReferencesNational Center for Healt
Page 155 and 156: Changes Over TimeIn phases of the D
Page 157 and 158: HIV/AIDS/STDSHIV/AIDS PREVENTION KN
Page 159 and 160: CONDOM USE AT LAST SEXStatistics: P
Page 161: . Denominator (exposure): [Example
Page 165 and 166: ADULT MORTALITY (INDIRECT METHOD)St
Page 167: Another important issue is location
show all

Demographic and Health Surveys Methodology - Measure DHS

Create successful ePaper yourself

Delete template?

Save as template?