
Question #1:
Given the following data for two districts the prevalence of underweight for the region overall is given in each table for each example.
Child Population |
Prevalence Underweight (%) |
# Underweight Children* |
|
| District A | 200,000 |
20 |
40,000 |
| District B | 50,000 |
40 |
20,000 |
| Region | 24 |
60,000 |
* estimate that 20% of child population is underweight.
Prevalence Underweight (%) |
Total Population (million) |
|
| District A | 15 |
2.468 |
| District B | 30 |
1.234 |
| Region | 20 |
If you have any questions about how these numbers were calculated, see page 2, Chapter 3
Question #2:
Area Profile
Table 1 gives an overview of the Rift Valley region of Kenya by summarizing some important descriptive statistics. The ratio of female to male children is roughly equal, and the overall prevalence of malnutrition in this region is 20.5%. Compared to average levels of malnutrition of 27.2% (Average 1985 to 1995) for Sub-Saharan Africa, this level of underweight prevalence is below average. The percent of people without access to toilet is not too bad, while the percent with poor roofing (a proxy indicator for SES) is higher. The level respondents with low education is greater than half and literacy rates are not much better. The coverage rate of measles vaccination for children ³ 9 months is not far from the ideal coverage rate of 90%. A very high percentage of people in this region have a health card, whether this means that they take advantage of health services or not is unclear. The percent of women who deliver in a home is fairly high at 62.2%. Only half of the residents of this region have access to a good water source.| Table 1: Rift Valley Area Profile | |
| Descriptive | |
| % Female Child | 49.8 (1276) |
| % Underweight (<-2SDs) | 20.5 (806) |
| Socioeconomic | |
| % Without Toilet/Latrine Access | 21.2 (1746) |
| % With Poor Housing (thatched or other type of roof) | 41.6 (1739) |
| % Illiterate Respondents | 44.9 (1750) |
| % Respondents with Low education (incomplete 1o or none) | 64.0 (1754) |
| Health Services | |
| % Received Measles Vaccine (children >= 9 months) | 81.0 (699) |
| % Respondents With Health Card | 94.9 (953) |
| % Home Delivery Location | 62.2 (953) |
| Environmental Characteristics | |
| % Bad Drinking Water Source (surface or other) | 50.1 (1737) |
| % Bad Household Water Source (surface or other) | 50.0 (1749) |
| % Time to Water Source >30 min | 16.9 (1327) |
Question #3:
By compiling district level area profile data we can rank districts by malnutrition prevalence and then add other indicators to see if they are in line with the malnutrition ranking. Table 2 ranks districts based on malnutrition and compares this with the contribution each area makes to the total number of malnourished. This ranking shows that Kericho and Other rural districts have the highest prevalence of malnutrition in kids under five. It is also important to note that in Nandi, although the prevalence of malnutrition is not among the highest, as this region is the largest (population), it contributes the second highest number of malnourished children and should also be targeted.
| Table 2: Targeting Districts by Prevalence of Malnutrition | |||||||||
| District | Population |
# Children <5 years |
% Underweight (<-2 SDs) |
% of All Malnourished Children |
% Received Measles Vaccine |
% Without Access to Toilet/Latrine |
% Low Education of Mother |
||
| Kericho (rural) | 322 |
152 |
26.3 |
24.2 |
88.1 |
28.3 |
69.3 |
||
| Other rural | 300 |
132 |
25.0 |
20.0 |
74.6 |
36.4 |
75.0 |
||
| Uasin Gishu (rural) | 315 |
142 |
19.7 |
17.0 |
81.3 |
17.6 |
66.7 |
||
| Nakuru (rural) | 252 |
125 |
19.2 |
14.5 |
88.2 |
1.6 |
56.3 |
||
| Nandi (rural) | 403 |
204 |
16.7 |
20.6 |
73.8 |
28.4 |
67.7 |
||
| Other urban | 162 |
51 |
11.8 |
3.6 |
85.2 |
2.0 |
30.2 |
||
| Total | 1754 |
806 |
20.5 |
99.9 |
81.0 |
22.0 |
64.0 |
||
Question #4:
Current Program Coverage and Targeting
The current program coverage for several health access variables and education is summarized in Table 5. Table 3 gives the coverage, coverage of the malnourished and focusing over population prevalence for each of these associations. From these results we can see that none of the current programs are particularly well targeted to the malnourished. This is evidenced by the ratio of prevalence in the program to population prevalence being < 1.00. In an ideal situation, where a program is well targeted to the malnourished this ratio would be > 1.00.
It would be smart to look at all current interventions and those that are not targeted to the malnourished should be re-targeted to the worse-off.
Table 3: Current Program Coverage and Targeting |
||||
Weight for Age Prevalence (<-2SDs of ref. Median) |
||||
| Health Card | ||||
| Coverage | 0.97 |
|||
| % Malnourished in program | 0.98 |
|||
| F/PP | 1.00 |
|||
| Tetanus Toxoid | ||||
| Coverage | 0.89 |
|||
| % Malnourished in program | 0.85 |
|||
| F/PP | 0.96 |
|||
| Measles Vaccination | ||||
| Coverage | 0.81 |
|||
| % Malnourished in program | 0.82 |
|||
| F/PP | 1.01 |
|||
| Delivery Location | ||||
| Coverage | 0.38 |
|||
| % Malnourished in program | 0.27 |
|||
| F/PP | 0.70 |
|||
These results are taken from Table 4 which shows the prevalence of underweight receiving or not receiving the program. From that we can calculate the ratio of prevalence among program participants to population prevalence to see how well current programs are targeted.
| Table 4: Targeting and Coverage of Current Programs and Interventions | ||||||||||
| Weight for age Prevalence (<-2 SDs) | Weight for age Prevalence (<-2 SDs) | |||||||||
| Health Card | Mean |
N |
# maln |
# not maln |
Delivery Location | Mean |
N |
# maln |
# not maln |
|
| Has health card (pgm) | 0.2006 |
783 |
157 |
626 |
Public or private sector (pgm) | 0.1433 |
307 |
44 |
263 |
|
| No health card (no pgm) | 0.1739 |
23 |
4 |
19 |
Homes or other (no pgm) | 0.243 |
498 |
121 |
377 |
|
| Total | 0.2047 |
806 |
165 |
641 |
Total | 0.205 |
805 |
165 |
640 |
|
| Coverage | 0.97 |
Coverage | 0.38 |
|||||||
| % of malnourished rec. pgm | 0.98 |
% of malnourished rec. pgm | 0.27 |
|||||||
| Focusing | 0.20 |
Focusing | 0.14 |
|||||||
| Population prevalence | 0.20 |
Population prevalence | 0.20 |
|||||||
| F/PP | 1.00 |
F/PP | 0.70 |
|||||||
| Weight for age Prevalence (<-2 SDs) | Weight for age Prevalence (<-2 SDs) | |||||||||
| Tetanus Toxoid | Mean |
N |
# maln |
# not maln |
Measles Vaccine | Mean |
N |
# maln |
# not maln |
|
| Rec'd injection (pgm) | 0.1972 |
710 |
140 |
570 |
Rec'd Vaccine (pgm) | 0.2485 |
495 |
123 |
372 |
|
| No injection (no pgm) | 0.2697 |
89 |
24 |
65 |
No Vaccine (no pgm) | 0.2348 |
115 |
27 |
88 |
|
| Total | 0.2053 |
799 |
164 |
635 |
Total | 0.2459 |
610 |
150 |
460 |
|
| Coverage | 0.89 |
Coverage | 0.81 |
|||||||
| % of malnourished rec. pgm | 0.85 |
% of malnourished rec. pgm | 0.82 |
|||||||
| Focusing | 0.20 |
Focusing | 0.25 |
|||||||
| Population prevalence | 0.21 |
Population prevalence | 0.25 |
|||||||
| F/PP | 0.96 |
F/PP | 1.01 |
|||||||
Question #5:
Associations with Nutritional Status
The one-way analysis looks at the associations between important variables and mean weight for age z score as well as underweight prevalence. This is summarized in Table 4, showing that toilet access, roof (proxy for SES), educational attainment and delivery location are all significantly associated with both mean WAZ and underweight prevalence.
| Table 4: One-Way Analysis | |||
Mean WAZ |
Underweight Prevalence (%) |
n |
|
| Toilet Access | p = 0.035 |
p = 0.025 |
|
| No access to toilet | -1.11 |
26.6 |
177 |
| Access to toilet | -0.87 |
18.9 |
626 |
| Difference (b/n worse and best off) | -0.2 |
7.7 |
|
| Total | -0.93 |
20.6 |
803 |
| Roof | p = 0.000 |
p = 0.001 |
|
| Thatched or other roof | -1.12 |
25.9 |
359 |
| Corrugated iron or tiles | -0.76 |
16.3 |
443 |
| Difference (b/n worse and best off) | -0.4 |
9.7 |
|
| Total | -0.92 |
20.6 |
802 |
| Drinking water source | p = 0.064 |
p = 0.292 |
|
| Surface | -1.00 |
22.0 |
396 |
| pub. Tap and well w/o pump | -0.91 |
21.4 |
262 |
| piped to res. And well w/ pump | -0.68 |
15.4 |
117 |
| Difference (b/n worse and best off) | -0.3 |
6.6 |
|
| Total | -0.95 |
20.8 |
775 |
| Educational attainment | p = 0.006 |
p = 0.005 |
|
| none or incomplete 1o | -1.02 |
23.5 |
511 |
| complete 1o or more | -0.76 |
15.3 |
295 |
| Difference (b/n worse and best off) | -0.3 |
8.2 |
|
| Total | 0.92 |
20.5 |
806 |
| Delivery location | p = 0.000 |
p = 0.001 |
|
| Homes or other | -1.09 |
24.3 |
498 |
| Public or private sector | -0.66 |
14.3 |
307 |
| Difference (b/n worse and best off) | -0.4 |
10.0 |
|
| Total | -0.93 |
20.5 |
805 |