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• hi i have small problem rather its an epidemiological problem. There is a population of 100000 and a sample of 10,000 has been selected from it. out of the
Message 1 of 7 , Mar 29, 2007
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hi i have small problem rather its an epidemiological problem.

There is a population of 100000 and a sample of 10,000 has been
selected from it. out of the sample of 10,000 it was decided that
every one will be contacted to study the prevalence of Tuberculosis
but, unfortunately only 8000 could be calculated,and only 32 turned
out to be positive for AFB. The question is what is the prevalence of
Tuberculosis.
Now the answer will be either 3.2 or 4.0 as we can take denominator as
10,000 or 8,000.Now can any one tell what will be the answer?

(a) will we take 10,000 as denominator

(b) will take 8,000 as denominator

Please give reasons for taking the above choice.
• Hi, definitely the prev will be calculated from those u examined and ... epidemiological problem. ... 10,000 has been ... decided that ... of Tuberculosis ...
Message 2 of 7 , Mar 30, 2007
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Hi,
definitely the prev will be calculated from those u
examined and
--- iapsm_youthmembers@yahoogroups.com
<Dr_3917@...> wrote:
> hi i have small problem rather its an
epidemiological problem.
>
> There is a population of 100000 and a sample of
10,000 has been
> selected from it. out of the sample of 10,000 it was
decided that
> every one will be contacted to study the prevalence
of Tuberculosis
> but, unfortunately only 8000 could be calculated,and
only 32 turned
> out to be positive for AFB. The question is what is
the prevalence of
> Tuberculosis.
> Now the answer will be either 3.2 or 4.0 as we can
take denominator as
> 10,000 or 8,000.Now can any one tell what will be
>
> (a) will we take 10,000 as denominator
>
> (b) will take 8,000 as denominator
>
> Please give reasons for taking the above choice.
>
>

Dr Abhinav Sinha
Assistant Professor
Department of Community Medicine
R D Gardi Medical College
Ujjain
Mobile - 9893740113

____________________________________________________________________________________
The fish are biting.
Get more visitors on your site using Yahoo! Search Marketing.
• Hi Abhinav How are you. When you left NPSP? Write me on my personal ID Regards, ___________________________________ Dr. Pritu Dhalaria, DCM, MD. Program
Message 3 of 7 , Mar 30, 2007
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Hi Abhinav

How are you. When you left NPSP?

Write me on my personal ID

Regards,

___________________________________
Dr. Pritu Dhalaria, DCM, MD.
Program Manager,
The Japanese Encephalitis (JE) Project
PATH: A catalyst for global health
A-9, Qutub Institutional Area,
New Delhi  110 067 (INDIA)
Tel: (91-11) 26530080 Ext. 307
Fax: (91-11) 26530089
Mob: (91) 9910108830
E-mail: pritu@...
drpritu@...
Website: www.path.org/je

abhinav sinha <aspsm2003@...> wrote:
Hi,
definitely the prev will be calculated from those u
examined and
--- iapsm_youthmembers@ yahoogroups. com
<Dr_3917@yahoo. com> wrote:
> hi i have small problem rather its an
epidemiological problem.
>
> There is a population of 100000 and a sample of
10,000 has been
> selected from it. out of the sample of 10,000 it was
decided that
> every one will be contacted to study the prevalence
of Tuberculosis
> but, unfortunately only 8000 could be calculated,and
only 32 turned
> out to be positive for AFB. The question is what is
the prevalence of
> Tuberculosis.
> Now the answer will be either 3.2 or 4.0 as we can
take denominator as
> 10,000 or 8,000.Now can any one tell what will be
>
> (a) will we take 10,000 as denominator
>
> (b) will take 8,000 as denominator
>
> Please give reasons for taking the above choice.
>
>

Dr Abhinav Sinha
Assistant Professor
Department of Community Medicine
R D Gardi Medical College
Ujjain
Mobile - 9893740113

____________ _________ _________ _________ _________ _________ _
The fish are biting.
Get more visitors on your site using Yahoo! Search Marketing.

Don't pick lemons.
See all the new 2007 cars at Yahoo! Autos.

• sirjee, dont we factor non response while calculating sample size.wasnt the sample size of 10000 calculated keeping in consideration the non response?? what do
Message 4 of 7 , Mar 30, 2007
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sirjee,
dont we factor non response while calculating
sample size.wasnt the sample size of 10000 calculated
keeping in consideration the non response??
what do u think abt this?
--- abhinav sinha <aspsm2003@...> wrote:

> Hi,
> definitely the prev will be calculated from those u
> examined and
> --- iapsm_youthmembers@yahoogroups.com
> <Dr_3917@...> wrote:
> > hi i have small problem rather its an
> epidemiological problem.
> >
> > There is a population of 100000 and a sample of
> 10,000 has been
> > selected from it. out of the sample of 10,000 it
> was
> decided that
> > every one will be contacted to study the
> prevalence
> of Tuberculosis
> > but, unfortunately only 8000 could be
> calculated,and
> only 32 turned
> > out to be positive for AFB. The question is what
> is
> the prevalence of
> > Tuberculosis.
> > Now the answer will be either 3.2 or 4.0 as we can
> take denominator as
> > 10,000 or 8,000.Now can any one tell what will be
> >
> > (a) will we take 10,000 as denominator
> >
> > (b) will take 8,000 as denominator
> >
> > Please give reasons for taking the above choice.
> >
> >
>
>
> Dr Abhinav Sinha
> Assistant Professor
> Department of Community Medicine
> R D Gardi Medical College
> Ujjain
> Mobile - 9893740113
>
>
>
>
____________________________________________________________________________________
> The fish are biting.
> Get more visitors on your site using Yahoo! Search
> Marketing.
>
>

__________________________________________________________
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• Hi dear Dr 3917, It s really good to call u by number than name. I think u must be PG of PSM department. we feel great if u introduce ur self. Ok any way but
Message 5 of 7 , Apr 1, 2007
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Hi dear Dr 3917,
It's really good to call u by number than name. I think u must be PG of PSM department. we feel great if u introduce ur self.
Ok any way but its great question u have asked. there are many things which need to complete before final answer. u need to specify ur study aim and objectives. Also let us know methodology of ur study. test which u have introduced for study of prevalence of tuberculosis.
Hope u will reply all above points but any way u can calculate prevalence from what u have examined. The sample is calculated for making study scientifically correct. Investigator need to achieve sample size, but in case he/she could not collect all sample size. while calculating final result he/she can set level of error according.
Regards

Dr Niraj Pandit,
District TB Officer,
India
----- Original Message -----
From: dr_3917
Sent: Thursday, March 29, 2007 8:27 PM
Subject: [iapsm_youthmembers] Hello every 1

hi i have small problem rather its an epidemiological problem.

There is a population of 100000 and a sample of 10,000 has been
selected from it. out of the sample of 10,000 it was decided that
every one will be contacted to study the prevalence of Tuberculosis
but, unfortunately only 8000 could be calculated,and only 32 turned
out to be positive for AFB. The question is what is the prevalence of
Tuberculosis.
Now the answer will be either 3.2 or 4.0 as we can take denominator as
10,000 or 8,000.Now can any one tell what will be the answer?

(a) will we take 10,000 as denominator

(b) will take 8,000 as denominator

Please give reasons for taking the above choice.

• Hello Dr.Niraj Iam Dr.Aikant bhatti, currently iam pursuing for my Diploma Health Administration from NIHFW. This was the epidemiological problem which i came
Message 6 of 7 , Apr 2, 2007
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Hello Dr.Niraj
Iam Dr.Aikant bhatti, currently iam pursuing for my
Diploma Health Administration from NIHFW. This was the
epidemiological problem which i came across while going some
epidemiological exercises which we get during the practical exams. so
population 1,00,000 and out of it a sample of 10,000 was selected by
simple random sampling for studying prevalance of tuberculosis. it
was proposed that all the subjcets will be contacted and sputum for
AFB will be collected those having cough for >3 weeks. during the
course of the study only 8,000 subjects could be contacted (reasons
not given. 32 people were found to be postive for AFB on sputum smear
examination. now the question asked is what is the prevalance of TB
in this community.
In iapsm_youthmembers@yahoogroups.com, "Niraj Pandit" <drniraj74@...>
wrote:
>
> Hi dear Dr 3917,
> It's really good to call u by number than name. I think u must be
PG of PSM department. we feel great if u introduce ur self.
> Ok any way but its great question u have asked. there are many
things which need to complete before final answer. u need to specify
ur study aim and objectives. Also let us know methodology of ur
study. test which u have introduced for study of prevalence of
tuberculosis.
> Hope u will reply all above points but any way u can calculate
prevalence from what u have examined. The sample is calculated for
making study scientifically correct. Investigator need to achieve
sample size, but in case he/she could not collect all sample size.
while calculating final result he/she can set level of error
according.

Regards
Aikant
> Regards
>
> Dr Niraj Pandit,
> District TB Officer,
> India
>
> ----- Original Message -----
> From: dr_3917
> To: iapsm_youthmembers@yahoogroups.com
> Sent: Thursday, March 29, 2007 8:27 PM
> Subject: [iapsm_youthmembers] Hello every 1
>
>
> hi i have small problem rather its an epidemiological problem.
>
> There is a population of 100000 and a sample of 10,000 has been
> selected from it. out of the sample of 10,000 it was decided that
> every one will be contacted to study the prevalence of
Tuberculosis
> but, unfortunately only 8000 could be calculated,and only 32
turned
> out to be positive for AFB. The question is what is the
prevalence of
> Tuberculosis.
> Now the answer will be either 3.2 or 4.0 as we can take
denominator as
> 10,000 or 8,000.Now can any one tell what will be the answer?
>
> (a) will we take 10,000 as denominator
>
> (b) will take 8,000 as denominator
>
> Please give reasons for taking the above choice.
>
• hi dr pritu, I m dr manish rana from GMC SURAT,your institution. sir i m a first year resident , from mumbai. i have heard about u a lot, espsecially the
Message 7 of 7 , Apr 5, 2007
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hi dr pritu,

I m dr manish rana from GMC SURAT,your institution.

sir i m a first year resident , from mumbai. i have heard about u  a lot, espsecially the royal life which u lived in GMC Surat.

its nice tobe im touch with  sir.

i had been to delhi for the national conference, but did not know about your whereabouts, or i would have definitely meet u.

"Dr. Pritu Dhalaria" <drpritu@...> wrote:
Hi Abhinav

How are you. When you left NPSP?

Write me on my personal ID

Regards,

____________ _________ _________ _____
Dr. Pritu Dhalaria, DCM, MD.
Program Manager,
The Japanese Encephalitis (JE) Project
PATH: A catalyst for global health
A-9, Qutub Institutional Area,
New Delhi  110 067 (INDIA)
Tel: (91-11) 26530080 Ext. 307
Fax: (91-11) 26530089
Mob: (91) 9910108830
E-mail: pritu@pathindia. org
drpritu@hotmail. com
Website: www.path.org/ je

abhinav sinha <aspsm2003@yahoo. co.in> wrote:
Hi,
definitely the prev will be calculated from those u
examined and
--- iapsm_youthmembers@ yahoogroups. com
<Dr_3917@yahoo. com> wrote:
> hi i have small problem rather its an
epidemiological problem.
>
> There is a population of 100000 and a sample of
10,000 has been
> selected from it. out of the sample of 10,000 it was
decided that
> every one will be contacted to study the prevalence
of Tuberculosis
> but, unfortunately only 8000 could be calculated,and
only 32 turned
> out to be positive for AFB. The question is what is
the prevalence of
> Tuberculosis.
> Now the answer will be either 3.2 or 4.0 as we can
take denominator as
> 10,000 or 8,000.Now can any one tell what will be
>
> (a) will we take 10,000 as denominator
>
> (b) will take 8,000 as denominator
>
> Please give reasons for taking the above choice.
>
>

Dr Abhinav Sinha
Assistant Professor
Department of Community Medicine
R D Gardi Medical College
Ujjain
Mobile - 9893740113

____________ _________ _________ _________ _________ _________ _
The fish are biting.
Get more visitors on your site using Yahoo! Search Marketing.