Page 101 - IJPS-11-3
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International Journal of
            Population Studies                                                               Male fertility in Uganda




            Table 1. Distribution of changes in male ASFRm during the period 2006 – 2016
            Age group      2006 (A)     2011       2016 (B)     Rate ratio (RR [B/A])  Percentage change = (RR‑1) × 100
            15 – 19        0.0215       0.0197     0.0223       1.0372                0.08
            20 – 24        0.2099       0.1939     0.1928       0.9185                −1.71
            25 – 29        0.3513       0.3199     0.2974       0.8466                −5.39
            30 – 34        0.3716       0.3517     0.313        0.8423                −5.86
            35 – 39        0.3225       0.325      0.2694       0.8353                −5.31
            40 – 44        0.2774       0.2453     0.2253       0.8122                −5.21
            45 – 49        0.1859       0.1751     0.1579       0.8494                −2.80
            50 – 54        0.1074       0.0973     0.0874       0.8138                −2.00
            55 – 59        0.0774       0.0714     0.0569       0.7351                −2.05
            60 – 64        0.0471       0.0496     0.032        0.6794                −1.51
            65 – 69        0.0362       0.0077     0.0144       0.3978                −2.18
            70 – 74        0.0233       0.0052     0.0088       0.3777                −1.45
            75 – 79        0.0225       0.0057     0.0036       0.1600                −1.89
            ∑ASFRm         2.054        1.8675     1.681
            TFRm           10.3         9.3        8.4
            Abbreviations: ASFRm: Age-specific fertility rates; TFRm: Male total fertility rate.
            was imputed using the random hot-deck technique and   each survey, it was implied that the survival probabilities
            included  in  the analysis  (Abbasi-Shavazi, 1997;  Allison,   computed from the Individual Woman’s Recode file were
            2001; Dubuc, 2009; Schoumaker, 2017). The imputation   applicable to men in each household. The Individual
            was based on the assumption that the age distribution   Woman’s Recode file data were used because data on birth
            of fathers who did not live with their children at age x at   histories among men are not readily available or collected
            the time of household enumeration was similar to that   during the UDHS. The estimated survival probabilities
            of fathers who lived with their children at age  x. This   were used to estimate the total births at age x among men.
            technique used data from all children aged 0 – 4 years and   This was obtained by multiplying the number of surviving
            their biological fathers and mothers who lived in the same   children at age x by the inverse of the corresponding age x
            households to estimate the age (in years) of hypothetical   survival probability. Exposure to childbirth was computed
            fathers  (those  who  were  alive  but  not  living  with  their   by summing the duration each man spent in every age
            children)  at the time of the survey. This technique also   group in the past 5 years before the survey. The formula to
            estimated the age (in years) of a father when each linked   obtain the ASFRm is shown in Equation 1:
            child was born by subtracting the recorded age of the child   MaleagespecificfertilityratesASFRm(  )
            from that of the father. During this analysis, it was assumed
            that the bias introduced by excluding children whose    TotalBirthsatagex                     (I)
            biological fathers were either dead or unknown was offset    Expposureatagex
            by the inclusion of children not living with their biological
            fathers at the time of the survey. Thus, this analysis was   The ASFRm results obtained from the application of
            independent of mortality bias among fathers. Using the   Schoumaker’s technique were transformed into TFRm
            Individual Woman’s Recode files, this technique estimated   estimates as indicated in Equation II and Figure 2:
            the survival probabilities for children at age x years before   TFRm = 5 × ∑ASFRmale           (II)
            enumeration for each survey round using female birth
            histories. Female birth histories were estimated from the   Where ASFRm represents estimated births that
            date of birth and the survival status of the child variables in   occurred in each age group per 1000 men.
            the Individual Woman’s Recode files. Survival probability   Descriptive univariate analysis was used to illustrate the
            is the proportion of surviving children born x years before   distribution of characteristics among men aged 15 – 54 years
            the survey. Grounded on the assumption that the biological   using the Individual Man’s Recode file for the 2006 and 2016
            mothers, fathers, and their children aged 0 – 4 years lived   survey rounds. Figure 2 indicates that a fertility transition
            in  the  same  households  x  years  before  enumeration for   occurred during the inter-survey period of 2006 – 2016.


            Volume 11 Issue 3 (2025)                        95                         https://doi.org/10.36922/ijps.461
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