Worabe townis the capital city of Silt zone which is found in SNNPR.Werabe town which is 185km Far away from Addis Ababa with the total population of 26,839 in 2007 E.CAnd using 3.8% conversion factor for reproductive age group the source of population will be N=894. The weather condition is partially desert “Qola” in which its altitude is 1450 – 2200 meters above sea level and bordered with MaskanWoreda in North, HulbaragWoredainSouth,AlichoWoredainWest and DalochaWoredain East. In Werabe town Health service there are 1 hospital, 1 health centre, 2 health post, and 5 privet clinics.
Source of population
The source population all pregnant women living in Worabe town
The Study populations were all pregnant women who came from Worabe town for antenatal care service to Worabe comprehensive specialized hospital ANC clinic during the study period.
Study design and study period
A hospital-based cross-sectional study was conducted from September to December 2016 to assess the prevalence of anemia and associated factors among pregnant women in Worabe comprehensive specialized hospital, Silt Zone, Southern Ethiopia.
Sample size determination
Sample size was calculated by using a single population proportionformula.
n = Z2 x P x (1-P) / D2
Where n: sample size
Z: reliability coefficient (confidence level) which is 95% = 1.96
P: estimate prevalence rate for the population 0.5(50%)
D: the margin of error, which is 5% =0.04
n = 1.962 x (0.5) x (1- 0.5) / 0.052 = 384,
The total population is less than 10,000. The above formula result is manipulated using the formula as follows.
1+n Where N=894
N n= 384
Then find sample size by using the below formula
contingency for non response
268x10% = 26.8
Total sample is = 268 + 27 =295
Therefore, the total sample size required to collect the data is nearly where 295 pregnant women.
Convenient sampling technique wasused to select the 295 pregnant women who come to Worabe comprehensive specialized hospital during study period was studied.
Data collection procedure
Before data collection, Pre structured questionnaires is prepared in English, and translated to Amharic by language experts and then back to English. Then the required information is collected by face-to-face interview using pre-tested structured questionnaire until adequate sample is found.
Data management and quality control
To ensure the quality of the data, the following action was taken. Orientation was given to health professional about study and how to collect data from ANC service attendants .And also the issue was discussed with laboratory staffs to give due emphasis to study. The questionnaire was pre-tested on 5% of the sample at Worabe health center who are not included in the study..
Data processing and analysis
Data were entered, cleaned, coded and analyzed using statistical package for social science (SPSS) version 16. Data were organized, summarized, and presented in descriptive statistical methods. A p-value of ≤ 0.05 was considered as statistically significant association between the the dependant and independent variables by using chi-square/Fishers test and presented using tables and graphs.