scholarly journals Random Spatial and Systematic Random Sampling Approach to Development Survey Data: Evidence from Field Application in Malawi

2019 ◽  
Vol 11 (24) ◽  
pp. 6899
Author(s):  
Ebelechukwu Maduekwe ◽  
Walter Timo de Vries
Keyword(s):  
Developing Countries ◽  
Survey Data ◽  
Random Sampling ◽  
Local Population ◽  
Field Application ◽  
Geographical Information ◽  
Systematic Random Sampling ◽  
Household Characteristics ◽  
Multilevel Sampling ◽  
Sampling Approach

Implementing development surveys in developing countries can be challenging. Limited time, high survey costs, lack of information, and technical difficulties are some of the general constraints that plague development researchers. These constraints can hinder data collection and introduce selection bias into the survey data. We outline a multilevel sampling approach for use in areas where comprehensive information on geographical or household characteristics of local population are not readily available. Our approach includes the use of geographical information systems (GIS) for random spatial sampling and personal digital assistants (PDAs) with a global positioning system (GPS) for household systematic random sampling with random walk. Evidence from our field application in Malawi show that the multilevel sampling approach yields relevant survey data which is comparable to historical and nationally representative values; and supports rapid aggregation of preliminary results after the survey. This multilevel design is cost-effective in implementation and reduces bias avenues in the household selection. Overall, this multilevel sampling approach can be used to generate survey data in developing countries where detailed geographical information and household characteristics data are not readily available. It also presents ways of reducing bias in survey data given budget constraints.

A protocol for sampling pastures in hill country

2016 ◽  
Vol 78 ◽  
pp. 203-209 ◽  
Author(s):  
K.J. Hutchinson ◽  
D.R. Scobie ◽  
J. Beautrais ◽  
A.D. Mackay ◽  
G.M. Rennie ◽  
...  
Keyword(s):  
Random Sampling ◽  
Geographical Information Systems ◽  
Field Measurements ◽  
Decision Support Tool ◽  
Accurate Estimate ◽  
Ease Of Use ◽  
Geographical Information ◽  
Support Tool ◽  
Topographic Complexity ◽  
Hill Country

To develop a protocol to guide pasture sampling for estimation of paddock pasture mass in hill country, a range of pasture sampling strategies, including random sampling, transects and stratification based on slope and aspect, were evaluated using simulations in a Geographical Information Systems computer environment. The accuracy and efficiency of each strategy was tested by sampling data obtained from intensive field measurements across several farms, regions and seasons. The number of measurements required to obtain an accurate estimate was related to the overall pasture mass and the topographic complexity of a paddock, with more variable paddocks requiring more samples. Random sampling from average slopes provided the best balance between simplicity and reliability. A draft protocol was developed from the simulations, in the form of a decision support tool, where visual determination of the topographic complexity of the paddock, along with the required accuracy, were used to guide the number of measurements recommended. The protocol was field tested and evaluated by groups of users for efficacy and ease of use. This sampling protocol will offer farmers, consultants and researchers an efficient, reliable and simple way to determine pasture mass in New Zealand hill country settings. Keywords: hill country, feed budgeting, protocol pasture mass, slope

HUBUNGAN ANTARA UMUR DAN STATUS PERKAWINAN DENGAN KEJADIAN KANKER PAYUDARA DI INSTALASI BEDAH RUMAH SAKIT UMUM PUSAT DR. MOHAMMAD HOESIN PALEMBANG TAHUN 2012

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Rini Mayasari Rini Mayasari
Keyword(s):  
Breast Cancer ◽  
Marital Status ◽  
Cancer Incidence ◽  
Random Sampling ◽  
Breast Cancer Incidence ◽  
P Value ◽  
Chi Square ◽  
Cross Sectional ◽  
Systematic Random Sampling ◽  
Breast Cancer Event

ABSTRACT Breast cancer on the mark with the growth or uncontrolled growth of cells that are excessive. Factors affecting the incidence of breast cancer include maternal age, marital status, family history, hormone use, radiation, manarche, and obesity. The purpose of this study was to determine the relationship between Age and Marital Status of Mother with Breast Cancer incidence in the Installation Surgeon General Hospital Dr. Mohammad Hoesin Palembang in 2012. The study design was analytical descriptive with the approach in which the independent variables Cross Sectional Age Mother and Status Perkawianan and dependent variables in breast cancer incidence collected at the same time. The study population was all women who develop breast cancer in the Installation General Hospital Surgery Center Dr. Mohammad Hoesin Palembang in 2012 and samples taken by systematic random sampling with a sample of 130 respondents. The results of univariate analysis of data showed that respondents had breast cancer with a percentage of total 58 (44.61%) while respondents who had not had breast cancer totaled 72 by the percentage (63.39%). Respondents by Age Mothers who are at risk amounted to 34 by the percentage (26.15%) while respondents with Age Mothers who are not at risk amounted to 96 by the percentage (73.85%). Respondents by Marital Status is married and the mother who totaled 69 by the percentage (53.07%) and Marital Status with the status of unmarried women totaled 61 by the percentage (46.03%). Of Chi-Square test results found no significant relationship between Age Mothers with Breast Cancer event in which the p value = 0.007, no significant relationship between Marital Status in Breast Cancer event in which the p value = 0.030. Based on the results of the study, researchers suggest counseling efforts, medical knowledge and improve the quality of health services in order to reduce the incidence of breast cancer..   ABSTRAK Kanker payudara di tandai dengan pertumbuhan atau perkembangan tidak terkontrol dari sel-sel yang berlebihan. Faktor-faktor yang mempengaruhi kejadian kanker payudara antara lain umur ibu, status perkawinan, riwayat keluarga, penggunaan hormon, radiasi, manarche, dan obesitas. Tujuan penelitian ini adalah untuk mengetahui hubungan antara Umur Ibu dan Status Perkawinan dengan kejadian Kanker Payudara di Instalasi Bedah Rumah Sakit Umum Pusat Dr. Mohammad Hoesin Palembang Tahun 2012. Desain Penelitian ini adalah deskriptif analitik dengan pendekatan Cross Sectional dimana variabel independen Umur Ibu dan Status Perkawianan dan variabel dependen kejadian kanker payudara dikumpulkan dalam waktu yang bersamaan. Populasi penelitian ini adalah semua ibu yang menderita kanker payudara di Instalasi Bedah Rumah Sakit Umum Pusat Dr. Mohammad Hoesin Palembang Tahun 2012 dan sampel di ambil secara systematic random sampling dengan jumlah sampel 130 responden. Hasil analisis univariat data menunjukan responden yang mengalami Kanker Payudara berjumlah 58 dengan persentase sebesar (44,61%) sedangkan responden yang tidak mengalami Kanker Payudara berjumlah 72 dengan persentase (63,39%). Responden dengan Umur Ibu yang beresiko berjumlah 34 dengan persentase (26,15%) sedangkan responden dengan Umur Ibu yang tidak beresiko berjumlah 96 dengan persentase (73,85%). Responden dengan Status Perkawinan ibu yang berstatus kawin berjumlah 69 dengan persentase (53,07%) dan Status Perkawinan ibu yang berstatus tidak kawin berjumlah 61 dengan persentase (46,03%). Dari hasil uji Chi-Square didapatkan ada hubungan bermakna antara Umur Ibu dengan kejadian Kanker Payudara dimana p Value = 0,007, ada hubungan bermakna antara Status Perkawinan dengan kejadian Kanker Payudara dimana p Value = 0,030. Berdasarkan hasil penelitian, peneliti menyarankan upaya-upaya penyuluhan, pengetahuan tenaga medis dan meningkatkan mutu pelayanan kesehatan guna menurunkan angka kejadian kanker payudara.

HUBUNGAN UMUR DAN PARITAS IBU DENGAN KEJADIAN HIPEREMESIS GRAVIDARUM DI RUMAH SAKIT UMUM PUSAT Dr. MOHAMMAD HOESIN PALEMBANG TAHUN 2011

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Wahyu Ida Muliana Wahyu Ida Muliana
Keyword(s):  
Pregnant Women ◽  
Medical Record ◽  
Random Sampling ◽  
Hyperemesis Gravidarum ◽  
P Value ◽  
Chi Square ◽  
Cross Sectional ◽  
Systematic Random Sampling ◽  
Pregnancy And Childbirth ◽  
Chi Square Test

ABSTRACT Hyperemesis Gravidarum marked excessive nausea and vomiting in pregnant women at a young age. WHO estimates that 536,000 women died from direct complications of pregnancy and childbirth. One complication of pregnancy is Hyperemesis Gravidarum. Hyperemesis Gravidarum in the world has been estimated to occur in 1-2% of pregnant. According to data from the Medical Record of Dr. Mohammad Hoesin Palembang Hospital, the incidence of Hyperemesis Gravidarum in 2011 there were 72 people of 661 pregnant women. The purpose of this reseach was to determine the relationship between maternal age and parity with Hyperemesis Gravidarum in Dr. Mohammad Hoesin Palembang Hospital 2011. The Design of this reseach used Cross Sectional by analytic approach survey. The population of this reseach are all of mother who gestational ≤ 16 weeks (four months) in the Installation of Obstetrics and Gynecology, Dr. Mohammad Hoesin Palembang Hospital in January to December of 2011 with the sample of 661 people which taken by systematic random sampling and the reseach was conducted from 17 April to 24 April 2012.  Each variable that was observed in tests using Chi-Square test with a (0.05).  The results of this study showed that 5.9% of mothers with hyperemesis gravidarum, 21.8% of mothers with high risk age, and 30.0% primigravida. Chi-Square test showed no significant relationship between age (p value = 0.000) and parity (p value = 0.000) with the incidence of hyperemesis gravidarum. Expected to the Hospital to be implemented properly instructed how to provide counseling to pregnant women about pregnancy and childbirth, as well as provide confidence that the nausea and vomiting is a symptom of physiology in pregnancy.   ABSTRAK Hiperemesis Gravidarum ditandai mual dan muntah yang berlebihan terjadi pada ibu hamil di usia muda. WHO memperkirakan 536.000 perempuan meninggal dunia akibat langsung dari komplikasi kehamilan dan persalinan. Salah satu komplikasi kehamilan adalah Hiperemesis Gravidarum. Insiden Hiperemesis Gravidarum di dunia telah diperkirakan terjadi pada 1-2% wanita hamil. Menurut data dari Medical Record Rumah Sakit Umum Pusat Dr. Mohammad Hoesin Palembang, angka kejadian Hiperemesis Gravidarum pada tahun 2011 terdapat 72 orang dari 661 ibu hamil. Tujuan penelitian ini adalah untuk mengetahui hubungan antara umur dan paritas ibu dengan kejadian Hiperemesis Gravidarum pada ibu di Rumah Sakit Umum Pusat Dr. Mohammad Hoesin Palembang tahun 2011. Desain Penelitian ini menggunakan survei analitik dengan pendekatan Cross Sectional. Populasi penelitian ini adalah dengan umur kehamilan ≤ 16 minggu (4 bulan) yang pernah dirawat inap di Instalasi Kebidanan dan Penyakit Kandungan Rumah Sakit Umum Pusat Dr. Mohammad Hoesin Palembang pada bulan Januari-Desember tahun 2011 dengan jumlah sample 661 orang yang diambil secara systematic Random Sampling (secara acak sistematis) dan penelitian ini dilakukan dari tanggal 17 April sampai dengan 24 April 2012. Masing-masing variabel yang diteliti di uji dengan menggunakan uji Chi-Square dengan a (0,05). Hasil penelitian ini menunjukkan bahwa 5,9% ibu mengalami hiperemesis gravidarum, 21,8% ibu dengan umur resiko tinggi, dan 30,0% ibu primigravida. Uji Chi-Square menunjukkan ada hubungan yang bermakna antara umur (p value = 0,000) dan paritas (p value = 0,000) dengan kejadian hiperemesis gravidarum. Diharapkan dapat menjadi masukan bagi pihak Rumah Sakit agar dilaksanakan penyuluhan dengan cara memberikan konseling terhadap ibu hamil tentang kehamilan dan persalinan, serta memberikan keyakinan bahwa mual muntah merupakan gejala fisiologi pada kehamilan.

SKRINING MALARIA DENGAN RAPID DIAGNOSTIC TEST DAN PERILAKU PENGOBATAN MALARIA PADA ORANG RIMBA DI DESA BUKIT SUBAN DAN DESA SEKAMIS KABUPATEN SAROLANGUN TAHUN 2016

2018 ◽  
Vol 6 (1) ◽  
pp. 20-35
Author(s):  
Maria Estela Karolina ◽  
Oktovia Rezka Nurmaajid ◽  
Armaidi Darmawan ◽  
Solha Elfrida
Keyword(s):  
Traditional Medicine ◽  
Diagnostic Test ◽  
Rapid Diagnostic Test ◽  
Random Sampling ◽  
Descriptive Study ◽  
Malaria Treatment ◽  
Systematic Random Sampling

Abstract Backgrounds : Rapid Diagnostic Test (RDT) is a imunologic methode to diagnose malaria. Mostly, Orang Rimba hunt nomadically. Orang Rimba have traditional medicine to cure malaria. The purposes of this research are to know the incident of malaria based on RDT and malaria treatment behaviour of Orang Rimba. Methode :  This research was descriptive study. The populations of this research were Orang Rimba in Desa Bukit Suban and Sekamis, Kabupaten Sarolangun. The number of samples in this research is 49 respondents. The sample was taken by systematic random sampling. Data were analyzed with univariat analysis. Result : The result showed that 16,7 % had malaria positive, P. vivax was the dominat species of plasmodium (62,5%). Mostly the aged of respondent was 5-11 years old (41,7%), the gender was male (58,3%), occupation was doesn’t work (56,3%), marriage status was marriage (56,3%). Most of Orang Rimba had worse knowladge level (53,6%), the mostly used term in Orang Rimba was demam kuro (50%), only (42,9%) respondents knew the trias of malaria, only 9 respondents knew that cause of malaria was mosquito’s bites, Orang Rimba mostly knew the danger of malaria (85,7%) and the complication of malaria (89,3%), and knew that malaria could be cured (82,1%). The users of modern combined with traditional medicine were as much as 57,1%, Orang Rimba mostly used ≥ 3 kinds of traditional medicine 53,6%, traditional medicine was mostly processed by boiling (24 respondents) and mostly knew one way of processing the traditional medicine  (57,1%), traditional medicine was mostly for being eaten or drunk and external medicine  (50%), the duration of using  traditional medicine was mostly  2-3 days (46,4%), Orang Rimba mostly said that traditional medicine was efficacious (92,9%). Conclusions : The incident number of malaria was 16,7% and the mostly users of modern combined with traditional medicine were as much as 57,1%. Keywords : Malaria, RDT, orang rimba, malaria treatment behaviour   Abstrak Latar Belakang : Rapid Diagnostic Test (RDT) merupakan metoda imunologik untuk mendiagnosis malaria. Lokasi berburu Orang Rimba cenderung berpindah-pindah. Orang Rimba memiliki kearifan lokal dalam mengobati malaria. Tujuan penelitian ini adalah untuk mengetahui skrining malaria berdasarkan RDT dan perilaku pengobatan malaria pada Orang Rimba. Metode : Penelitian ini merupakan penelitian deskriptif. Populasi penelitian seluruh Orang Rimba yang berada di Desa Bukit Suban dan Sekamis. Jumlah sampel pada penelitian ini adalah 48 responden. Pengambilan sampel menggunakan teknik Systematic Random Sampling. Data dianalisis dengan analisis univariat. Hasil : Dari hasil penelitian didapatkan 16,7% positif malaria, jenis plasmodium yang dominan adalah P. vivax (62,5%). Sebagian besar responden berusia 5-11 tahun (41,7%), sebagian besar berjenis kelamin laki-laki (58,3%), sebagian besar pekerjaan responden tidak bekerja (56,3%), sebagian besar berstatus kawin (56,3%). Sebagian besar Orang Rimba memiliki tingkat pengetahuan kurang baik (53,6%), sebagian besar menggunakan istilah demam kuro untuk menyebutkan malaria (50%), hanya 42,9% yang mengetahui trias malaria, hanya 9 responden yang menjawab penyebab malaria adalah gigitan nyamuk, sebagian besar mengetahui bahaya malaria 85,7%, jenis bahaya malaria 89,3%, dan mengetahui bahwa malaria dapat disembuhkan 82,1%. Pengguna pengobatan modern dikombinasi dengan pengobatan tradisional sebanyak 57,1%, sebagian besar menggunakan ≥ 3 jenis obat tradisional (53,6%), cara pengolahan yang paling banyak dengan cara direbus (24 responden) dan mengetahui 1 cara pengolahan (57,1%), cara pemakaian yang paling banyak dengan dimakan atau diminum dan obat luar (50%), lama penggunaan yang paling banyak selama 2-3 hari (46,4%), sebagian besar mengatakan obat tradisional berkhasiat (92,9%). Kesimpulan : Angka kejadian malaria sebesar 16,7% dan upaya pengobatan malaria terbanyak adalah dengan pengobatan modern dikombinasi dengan pengobatan tradisional (57,1%).   Kata Kunci :  Malaria, RDT, orang rimba, perilaku pengobatan malaria

scholarly journals Stakeholder-Driven Design Evolution of the Leveraged Freedom Chair Developing World Wheelchair

2012 ◽  
Author(s):  
Amos G. Winter ◽  
Mario A. Bollini ◽  
Benjamin M. Judge ◽  
Natasha K. Scolnik ◽  
Harrison F. O’Hanley ◽  
...  
Keyword(s):  
Developing Countries ◽  
Angular Velocity ◽  
East Africa ◽  
Survey Data ◽  
Angular Displacement ◽  
Low Cost ◽  
Center Of Gravity ◽  
Mechanical Advantage ◽  
Design Evolution ◽  
Propulsion Force

The Leveraged Freedom Chair (LFC) is a low-cost, all-terrain, variable mechanical advantage, lever-propelled wheelchair designed for use in developing countries. The user effectively changes gear by shifting his hands along the levers; grasping near the ends increases torque delivered to the drive-train, while grasping near the pivots enables a larger angular displacement with every stroke, which increases angular velocity in the drivetrain and makes the chair go faster. This paper chronicles the design evolution of the LFC through three user trials in East Africa, Guatemala, and India. Feedback from test subjects was used to refine the chair between trials, resulting in a device 9.1 kg (20 lbs) lighter, 8.9 cm (3.5 in) narrower, and with a center of gravity 12.7 cm (5 in) lower than the first iteration. Survey data substantiated increases in performance after successive iterations. Quantitative biomechanical performance data were also measured during the Guatemala and India trials, which showed the LFC to be 76 percent faster and 41 percent more efficient during a common daily commute and able to produce 51 percent higher peak propulsion force compared to conventional, pushrim-propelled wheelchairs.

scholarly journals Faktor-faktor yang Berhubungan dengan Penyembuhan Luka Post Sectio Caesarea di RSUD Arifin Achmad Provinsi Riau Tahun 2013

2014 ◽  
Vol 2 (5) ◽  
pp. 207-210
Author(s):  
Ika Putri Damayanti
Keyword(s):  
Diabetes Mellitus ◽  
Random Sampling ◽  
Sectio Caesarea ◽  
Chi Square ◽  
Cross Sectional ◽  
Systematic Random Sampling

Luka Post Sectio Caesarea merupakan luka yang terjadi akibat proses persalinan yang dilakukan dengan bedah caesar. Penyembuhan pasca operasi bedah caesar dipengaruhi oleh berbagai faktor baik intrinsik maupun ekstrinsik. Penelitian ini bertujuan untuk mengetahui faktor-faktor yang berhubungan dengan penyembuhan luka post sectio caesarea di RSUD Arifin Achmad Provinsi Riau Tahun 2013. Penelitian ini adalah penelitian kuantitatif dengan desain penelitian cross sectional. Lokasi penelitian adalah RSUD Arifin Achmad Provinsi Riau, penelitian dilakukan pada bulan Oktober-Mei 2014. Populasi dalam penelitian ini sebanyak 910 responden dengan besar sampel sebanyak 154. Teknik pengambilan sampel adalah Systematic Random Sampling. Data yang digunakan dalam penelitian ini adalah data sekunder. Analisis data untuk bivariat dengan uji Chi-Square. Hasil penelitian menunjukkan faktor-faktor yang berhubungan dengan penyembuhan luka post sectio caesarea adalah variabel usia (p = 0,002; POR=2,91; 95% CI: 1,50-5,65), variabel ibu yang mengalami infeksi (p= 0,001; POR=6,59; 95% CI: 3,24-13,41), dan variabel ibu yang mengalami Diabetes Mellitus (p= 0,001; POR=3,06; 95% CI: 1,575,94). Kesimpulan dalam penelitian ini adalah terdapat hubungan umur, infeksi dan diabetes Mellitus dengan penyembuhan luka post sectio caesarea. Diharapkan tenaga kesehatan lebih meningkatkan penyuluhan dan informasi tentang pentingnya menjaga kesehatan dan kebersihan diri sebelum atau pun setelah dilakukan operasi Caesar agar tidak terjadi infeksi pada luka operasi sehingga dapat mempercepat proses penyembuhan luka dan mengurangi lama hari rawat. 

scholarly journals Hubungan Antara Dukungan Suami Dengan Pelaksanaan Kelas Ibu Hamil Di Puskesmas Turi

2019 ◽  
Vol 11 (2) ◽  
pp. 94
Author(s):  
Kustini Kustini
Keyword(s):  
Random Sampling ◽  
P Value ◽  
Chi Square ◽  
Cross Sectional ◽  
Systematic Random Sampling

Kelas ibu hamil merupakan sarana belajar kelompok yang membahas tentang kehamilan, persalinan, nifas, perawatan bayi dan lain-lain, namun pada pemanfaatan kelas ibu hamil masih rendah. Penelitian ini bertujuan untuk mengetahui factor – factor yang mempengaruhi pelaksanaan kelas ibu hamil dipuskesmas Turi  kabupaten Lamongan tahun 2019  Desain penelitian survei sampel ini adalah cross sectional menggunakan pendekatan kuantitatif dengan jumlah sampel 110 ibu hamil secara systematic random sampling. Analisis data meliputi análisis univariat, bivariat (chi-square) dan multivariat (poisson regresi). Hasil analisis bivariat menunjukkan bahwa ada pengaruh antara dukungan suami p-value : 0,00 <  α 0,05 dengan partisipasi ibu mengikuti pelaksanaan kelas ibu hamil,. Upaya peningkatan dukungan suami untuk mengikuti pelaksanaan kelas ibu hamil dengan meningkatan pengetahun suami serta meningkatkan semua komponen pendukung pelaksanaan kelas ibu hamil di Kota Lamongan.  Kata kunci : Dukungan Suami, pelaksanaan kelas ibu hamil

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