"Mara Tellez Rojo" 

<mmtellez@correo.insp.mx>

02/11/2008 03:36 PM

T

o

Jee-Young 

Kim/RTP/USEPA/US@EPA

c

c

<david.bellinger@childrens.harvard.

edu>, Deirdre 

Murphy/RTP/USEPA/US@EPA, 

Karen 

Martin/RTP/USEPA/US@EPA, 

Mary Ross/RTP/USEPA/US@EPA, 

Zachary 

Pekar/RTP/USEPA/US@EPA, 

<hlamadrid@insp.mx>

S

u

b

j

e

c

t

RE: Questions on the Tellez-Rojo et 

al. (2006) paper

Kim, don't worry! On the contrary, sorry for the delay!

Here is the information you requested, I hope they may be helpful.

Best regards,

n Min Max p25 Median p75 Mean SD

Below 5 mg/dL

Blood Pb 12 mo (mg/dL) 195 0.5 4.9 2.2 3.1 4.0 3.0 1.1

Blood Pb 24 mo (mg/dL) 193 0.8 4.9 2.1 2.9 3.7 2.9 1.1

5-10 mg/dL

Blood Pb 12 mo (mg/dL) 99 5 9.7 5.6 6.5 7.8 6.7 1.4

Blood Pb 24 mo (mg/dL) 101 5 9.8 5.5 6.7 8.1 6.9 1.4
Dirección de Evaluación de Programas y Métodos Cuantitativos,

Centro de Investigación en Evaluación y Encuestas,

Instituto Nacional de Salud Pública

52-777-101 29 31

52-777-329 30 00 ext 3402

Fax: 52-777-311 11 48 y 52-777-311 24 72

De: Kim.Jee-Young@epamail.epa.gov [mailto:Kim.Jee-Young@epamail.epa.gov]

Enviado el: lun 11/02/2008 10:58

Para: Mara Tellez Rojo

CC: david.bellinger@childrens.harvard.edu; Murphy.Deirdre@epamail.epa.gov; 

Martin.Karen@epamail.epa.gov; Ross.Mary@epamail.epa.gov; Pekar.Zachary@epamail.epa.gov

Asunto: RE: Questions on the Tellez-Rojo et al. (2006) paper

Thank you Dr. Tellez-Rojo! And I apologize for the belated request, but

in addition to the mean blood lead levels and the number of children in

the less than 5 ug/dL subset, can you also provide us this information

for the 5-10 ug/dL subset of children?

Thanks!

Young

Jee Young Kim, Sc.D.

U.S. Environmental Protection Agency

National Center for Environmental Assessment

Telephone: 919-541-4157

E-mail: kim.jee-young@epa.gov

"Mara Tellez 
Rojo" 

<mmtellez@correo To

.insp.mx> Jee-Young Kim/RTP/USEPA/US@EPA 

cc

02/09/2008 12:46 <david.bellinger@childrens.harvar

AM d.edu>, Mary 

Ross/RTP/USEPA/US@EPA, Zachary 

Pekar/RTP/USEPA/US@EPA, Deirdre 

Murphy/RTP/USEPA/US@EPA, Karen 

Martin/RTP/USEPA/US@EPA 

Subject

RE: Questions on the Tellez-Rojo 

et al. (2006) paper 

Dear Kim, we will send you this information on Monday, for sure!

Sorry for the delay!
Dirección de Evaluación de Programas y Métodos Cuantitativos,

Centro de Investigación en Evaluación y Encuestas,

Instituto Nacional de Salud Pública

52-777-101 29 31

52-777-329 30 00 ext 3402

Fax: 52-777-311 11 48 y 52-777-311 24 72

De: Kim.Jee-Young@epamail.epa.gov [mailto:Kim.Jee-Young@epamail.epa.gov]

Enviado el: jue 07/02/2008 15:58

Para: Mara Tellez Rojo

CC: david.bellinger@childrens.harvard.edu; Ross.Mary@epamail.epa.gov;

Pekar.Zachary@epamail.epa.gov; Murphy.Deirdre@epamail.epa.gov;

Martin.Karen@epamail.epa.gov

Asunto: RE: Questions on the Tellez-Rojo et al. (2006) paper

Dear Dr. Tellez-Rojo,

Thank you for your response. I just wanted to follow-up with you on our

request for information on your 2006 paper. Just to clarify, would you

please provide us with information regarding the distribution (mean,

median, minimum, maximum) of the blood lead levels in the group of

children with levels less than 5 ug/dL?

As you may be aware, the Pb NAAQS review is on a very tight
court-ordered deadline. We would greatly appreciate your prompt

response.

Many thanks,

Young

Jee Young Kim, Sc.D.

U.S. Environmental Protection Agency

National Center for Environmental Assessment

Telephone: 919-541-4157

E-mail: kim.jee-young@epa.gov

"Mara Tellez

Rojo"

<mmtellez@correo To

.insp.mx> Jee-Young Kim/RTP/USEPA/US@EPA,

<david.bellinger@childrens.harvar

01/31/2008 01:36 d.edu>

AM cc

Zachary Pekar/RTP/USEPA/US@EPA,

Mary Ross/RTP/USEPA/US@EPA, Mary

Ross/RTP/USEPA/US@EPA

Subject
RE: Questions on the Tellez-Rojo

et al. (2006) paper

Hello Jee-Young Kim, we appreciate very much your attention in our

paper.

We will work on the information you requested and will go back as soon

as possible. I will have a tough day tomorrow and Monday is a holiday in

Mexico, so I will be able to work on this next week. Is that ok for you?

Best regards,

Martha Ma. (Mara) Téllez-Rojo

Dirección de Evaluación de Programas y Métodos Cuantitativos,

Centro de Investigación en Evaluación y Encuestas,

Instituto Nacional de Salud Pública

52-777-101 29 31

52-777-329 30 00 ext 3402
Fax: 52-777-311 11 48 y 52-777-311 24 72

De: Kim.Jee-Young@epamail.epa.gov [mailto:Kim.Jee-Young@epamail.epa.gov]

Enviado el: mar 29/01/2008 12:30

Para: Mara Tellez Rojo; david.bellinger@childrens.harvard.edu

CC: Pekar.Zachary@epamail.epa.gov; Ross.Mary@epamail.epa.gov;

Ross.Mary@epamail.epa.gov

Asunto: Re: Questions on the Tellez-Rojo et al. (2006) paper

Dear Drs. Tellez-Rojo and Bellinger,

I had e-mailed you last month with some questions about your paper and

wanted to follow-up with you. As you may be aware, EPA is currently in

the process of reviewing the U.S. National Ambient Air Quality Standard

for Lead and will be announcing the proposed rule in April/May 2008.

The Air Quality Criteria Document for Lead, in which Dr. Bellinger make

great contributions, discusses your 2006 paper as one that showed

statistically significant associations in infants at blood lead levels

below 10 ug/dL. In addition, among the 24 month olds, you also observed

statistically significant associations at below 5 ug/dL. Would you be

able to provide us with some information regarding the distribution

(e.g., mean, median, minimum) of the blood lead levels in this group of

children (i.e., less than 5 ug/dL)?
We greatly appreciate your help on this matter.

Thanks,

Young

Jee Young Kim, Sc.D.

U.S. Environmental Protection Agency

National Center for Environmental Assessment

Telephone: 919-541-4157

E-mail: kim.jee-young@epa.gov

Jee-Young

Kim/RTP/USEPA/US

To

12/20/2007 05:17 mmtellez@insp.mx,

PM david.bellinger@childrens.harvard

.edu

cc

Deirdre Murphy/RTP/USEPA/US@EPA,

Zachary Pekar/RTP/USEPA/US@EPA,

Mary Ross/RTP/USEPA/US@EPA

Subject

Questions on the Tellez-Rojo et

al. (2006) paper
Dear Drs. Tellez-Rojo and Bellinger,

We are much interested in your 2006 paper published in Pediatrics that

showed cognitive deficits in infants at blood lead levels below 10

ug/dL. In particular, we were interested in your finding of a greater

effect from 0 to 5 ug/dL compared to 5 to 10 ug/dL on MDI in 24 month

old children. Can you please provide us with some additional

information regarding the distribution of blood lead levels in the

subset of children with levels less than 5 ug/dL? For example, what was

the mean and minimum blood lead levels for that subset of children?

Thank you for taking the time to consider our questions. Happy

Holidays!

Best,

Young

(See attached file: Tellez-Rojo et al. (2006).pdf)
Jee Young Kim, Sc.D.

U.S. Environmental Protection Agency

National Center for Environmental Assessment

Telephone: 919-541-4157

E-mail: kim.jee-young@epa.gov