Table of Contents

Component Description

Sera from residual specimens from NHANES 2003-2004 participants were tested for IgG antibodies against seven norovirus strains: GI.1 Norwalk, GI.4, GII.3, GII.4 US95/96, GII.4 Farmington Hills, GII.4 New Orleans, and GIV.1. A quantitative enzyme immunoassay that uses norovirus virus-like particles (VLPs) to detect anti-norovirus IgG was used. Samples were diluted 1:50 for analysis. The results are reported in optical density (OD) and ng IgG/ml. Samples with OD >3 (i.e. above the measurable range of the assay, strongly positive) are reported as 3.50. Concentrations greater than the highest standard (2000 ng IgG/ml) are reported as 100,000 ng IgG/ml, the upper limit of detection. Samples with OD less than the plate blank are coded 0.00. Missing observations represent samples that could not be tested due to insufficient volume or technical errors.

Eligible Sample

These tests were conducted on residual serum specimens stored at NCHS. Specimens were collected during the 2003-2004 study cycle. A one-third subsample of all subjects aged 16-49, maintaining population representativeness, was tested for anti-norovirus IgG antibody.

Description of Laboratory Methodology

Anti-norovirus IgG was measured using a previously published enzyme immunoassay (EIA) and virus-like particles (VLPs) as antigen. VLPs were provided by Dr. Robert Atmar at Baylor University. The EIA test utilizes VLP-coated wells. The serum samples were diluted 1:50 and incubated in the antigen-coated wells. If present, anti-norovirus antibodies are immobilized in the wells. Residual sample is eliminated by washing and conjugate (enzyme labeled antibodies to human IgG) is added and incubated. If IgG antibodies to norovirus are present, the conjugate will be immobilized in the wells. Residual conjugate is eliminated by washing and the enzyme substrate (p-nitrophenyl phosphate) is added. In the presence of the enzyme, the substrate is converted to a yellow end product which is read photometrically. Each sample was tested in duplicate.

Each plate had an IgG standard curve with known concentrations of human IgG ranging from 2000 ng/ml to 31.25 ng/ml. The standards were run in duplicate on each plate and the average of the duplicates was used to generate the standard curve. The curve was fit using a 4-point parametric fit in the Gen5 software and this curve was used to calculate concentrations for the samples on the same plate. Concentrations in ng IgG/ml were calculated for each well and averaged across the duplicates. Extrapolation beyond the standard curve was not allowed.

Optical density was determined on a BioTek ELx800 microplate reader and computer equipped with Gen5 software (BioTek, Winooski, VT).

Laboratory Quality Assurance and Monitoring

Quality control samples specific to each VLP antigen were included on every plate. Human serum from subjects with norovirus infections strain-matched to the assay VLPs was used as a positive control for all VLPs except GIV.1. For GIV.1, serum with high reactivity to GIV.1 (kind gift from B. di Martino) was used as a positive control because serum from subjects with known GIV.1 infections was not available. Negative control serum was selected from a panel of sera from uninfected subjects in norovirus human challenge studies. The serum sample with the lowest reactivity across all seven VLPs was used as the assay negative control.

Data Processing and Editing

Data was compiled after all the antibody testing was completed. Values above the upper limit of detection (OD = 3.0 or concentration = 100,000 ng IgG/ml) were replaced with 3.5 or 100,000, respectively. Values that were less than the plate blank were replaced with 0. Mean OD and concentration values were calculated using the replacement values. Data Access: All data are publicly available.

Analytic Notes

Due to cross-reactivity between strains and declining antibody levels after infection, there is no standard cutpoint value to determine seropositivity to norovirus in a single serum sample. Based on results of previous human challenge studies, a cutpoint of OD=1.5 is suggested to distinguish seropositive from seronegative samples. Additionally, an OD ≥3 (represented by a value of 3.50) is suggested to identify samples with recent (within the last year) infections.

Parallel analysis using the same selection and assay criteria was performed on serum samples from the 1999-2000 study cycle.

Variable Definition
SEQN Respondent Sequence Number
SSGI1C1 antibody concentration in duplicate 1 for GI.1 antigen
SSGI1C2 antibody concentration in duplicate 2 for GI.1 antigen
SSGI1CM mean antibody concentration for GI.1 antigen
SSGI1OD1 optical density in duplicate 1 for GI.1 antigen
SSGI1OD2 optical density in duplicate 2 for GI.1 antigen
SSGI1ODM mean optical density for GI.1 antigen
SSGI4C1 antibody concentration in duplicate 1 for GI.4 antigen
SSGI4C2 antibody concentration in duplicate 2 for GI.4 antigen
SSGI4CM mean antibody concentration for GI.4 antigen
SSGI4OD1 optical density in duplicate 1 for GI.4 antigen
SSGI4OD2 optical density in duplicate 2 for GI.4 antigen
SSGI4ODM mean optical density for GI.4 antigen
SSGII3C1 antibody concentration in duplicate 1 for GII.3 antigen
SSGII3C2 antibody concentration in duplicate 2 for GII.3 antigen
SSGII3CM mean antibody concentration for GII.3 antigen
SSGII3O1 optical density in duplicate 1 for GII.3 antigen
SSGII3O2 optical density in duplicate 2 for GII.3 antigen
SSGII3OM mean optical density for GII.3 antigen
SSGII4FC1 antibody concentration in duplicate 1 for GII.4 Farmington Hills antigen
SSGII4FC2 antibody concentration in duplicate 2 for GII.4 Farmington Hills antigen
SSGII4FCM mean antibody concentration for GII.4 Farmington Hills antigen
SSII4FO1 optical density in duplicate 1 for GII.4 Farmington Hills antigen
SSII4FO2 optical density in duplicate 2 for GII.4 Farmington Hills antigen
SSII4FOM mean optical density for GII.4 Farmington Hills antigen
SSII4UC1 antibody concentration in duplicate 1 for GII.4 US95/96 antigen
SSII4UC2 antibody concentration in duplicate 2 for GII.4 US95/96 antigen
SSII4UCM mean antibody concentration for GII.4 US95/96 antigen
SSII4UO1 optical density in duplicate 1 for GII.4 US95/96 antigen
SSII4UO2 optical density in duplicate 2 for GII.4 US95/96 antigen
SSII4UOM mean optical density for GII.4 US95/96 antigen
SSII4NC1 antibody concentration in duplicate 1 for GII.4 New Orleans antigen
SSII4NC2 antibody concentration in duplicate 2 for GII.4 New Orleans antigen
SSII4NCM mean antibody concentration for GII.4 New Orleans antigen
SSII4NO1 optical density in duplicate 1 for GII.4 New Orleans antigen
SSII4NO2 optical density in duplicate 2 for GII.4 New Orleans antigen
SSII4NOM mean optical density for GII.4 New Orleans antigen
SSGIV1C1 antibody concentration in duplicate 1 for GIV.1 antigen
SSGIV1C2 antibody concentration in duplicate 2 for GIV.1 antigen
SSGIV1CM mean antibody concentration for GIV.1 antigen
SSGIV1O1 optical density in duplicate 1 for GIV.1 antigen
SSGIV1O2 optical density in duplicate 2 for GIV.1 antigen
SSGIV1OM mean optical density for GIV.1 antigen

References

Codebook and Frequencies

SEQN - Respondent sequence number

Variable Name:
SEQN
SAS Label:
Respondent sequence number
English Text:
Respondent sequence number.
Target:
Both males and females 16 YEARS - 49 YEARS

SSGI1C1 - Antibody con. in dup. 1 for GI.1 ag

Variable Name:
SSGI1C1
SAS Label:
Antibody con. in dup. 1 for GI.1 ag
English Text:
Antibody con. in dup. 1 for GI.1 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 1096 1096
. Missing 6 1102

SSGI1C2 - Antibody con. in dup. 2 for GI.1 ag

Variable Name:
SSGI1C2
SAS Label:
Antibody con. in dup. 2 for GI.1 ag
English Text:
Antibody con. in dup. 2 for GI.1 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 1098 1098
. Missing 4 1102

SSGI1CM - Mean antibody concentration for GI.1 ag

Variable Name:
SSGI1CM
SAS Label:
Mean antibody concentration for GI.1 ag
English Text:
Mean antibody concentration for GI.1 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 1101 1101
. Missing 1 1102

SSGI1OD1 - Optical density in dup. 1 for GI.1 ag

Variable Name:
SSGI1OD1
SAS Label:
Optical density in dup. 1 for GI.1 ag
English Text:
Optical density in dup. 1 for GI.1 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3.5 Range of Values 1096 1096
. Missing 6 1102

SSGI1OD2 - Optical density in dup. 2 for GI.1 ag

Variable Name:
SSGI1OD2
SAS Label:
Optical density in dup. 2 for GI.1 ag
English Text:
Optical density in dup. 2 for GI.1 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3.5 Range of Values 1098 1098
. Missing 4 1102

SSGI1ODM - Mean optical density for GI.1 antigen

Variable Name:
SSGI1ODM
SAS Label:
Mean optical density for GI.1 antigen
English Text:
Mean optical density for GI.1 antigen
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3.5 Range of Values 1101 1101
. Missing 1 1102

SSGI4C1 - Antibody con. in dup. 1 for GI.4 ag

Variable Name:
SSGI4C1
SAS Label:
Antibody con. in dup. 1 for GI.4 ag
English Text:
Antibody con. in dup. 1 for GI.4 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 1024 1024
. Missing 78 1102

SSGI4C2 - Antibody con. in dup. 2 for GI.4 ag

Variable Name:
SSGI4C2
SAS Label:
Antibody con. in dup. 2 for GI.4 ag
English Text:
Antibody con. in dup. 2 for GI.4 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 1022 1022
. Missing 80 1102

SSGI4CM - Mean antibody concentration for GI.4 ag

Variable Name:
SSGI4CM
SAS Label:
Mean antibody concentration for GI.4 ag
English Text:
Mean antibody concentration for GI.4 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 1024 1024
. Missing 78 1102

SSGI4OD1 - Optical density in dup. 1 for GI.4 ag

Variable Name:
SSGI4OD1
SAS Label:
Optical density in dup. 1 for GI.4 ag
English Text:
Optical density in dup. 1 for GI.4 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.005 to 3.5 Range of Values 1102 1102
. Missing 0 1102

SSGI4OD2 - Optical density in dup. 2 for GI.4 ag

Variable Name:
SSGI4OD2
SAS Label:
Optical density in dup. 2 for GI.4 ag
English Text:
Optical density in dup. 2 for GI.4 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.002 to 3.5 Range of Values 1100 1100
. Missing 2 1102

SSGI4ODM - Mean optical density for GI.4 ag

Variable Name:
SSGI4ODM
SAS Label:
Mean optical density for GI.4 ag
English Text:
Mean optical density for GI.4 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.005 to 3.5 Range of Values 1102 1102
. Missing 0 1102

SSGII3C1 - Antibody con. in dup. 1 for GII.3 ag

Variable Name:
SSGII3C1
SAS Label:
Antibody con. in dup. 1 for GII.3 ag
English Text:
Antibody con. in dup. 1 for GII.3 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 1021 1021
. Missing 81 1102

SSGII3C2 - Antibody con. in dup. 2 for GII.3 ag

Variable Name:
SSGII3C2
SAS Label:
Antibody con. in dup. 2 for GII.3 ag
English Text:
Antibody con. in dup. 2 for GII.3 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 1023 1023
. Missing 79 1102

SSGII3CM - Mean antibody con. for GII.3 ag

Variable Name:
SSGII3CM
SAS Label:
Mean antibody con. for GII.3 ag
English Text:
Mean antibody con. for GII.3 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 1024 1024
. Missing 78 1102

SSGII3O1 - Optical density in dup. 1 for GII.3 ag

Variable Name:
SSGII3O1
SAS Label:
Optical density in dup. 1 for GII.3 ag
English Text:
Optical density in dup. 1 for GII.3 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.015 to 3.5 Range of Values 1099 1099
. Missing 3 1102

SSGII3O2 - Optical density in dup. 2 for GII.3 ag

Variable Name:
SSGII3O2
SAS Label:
Optical density in dup. 2 for GII.3 ag
English Text:
Optical density in dup. 2 for GII.3 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.021 to 3.5 Range of Values 1102 1102
. Missing 0 1102

SSGII3OM - Mean optical density for GII.3 ag

Variable Name:
SSGII3OM
SAS Label:
Mean optical density for GII.3 ag
English Text:
Mean optical density for GII.3 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.021 to 3.5 Range of Values 1102 1102
. Missing 0 1102

SSII4FC1 - Ab dup 1 for GII.4 Farmington Hills ag

Variable Name:
SSII4FC1
SAS Label:
Ab dup 1 for GII.4 Farmington Hills ag
English Text:
Ab dup 1 for GII.4 Farmington Hills ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 1057 1057
. Missing 45 1102

SSII4FC2 - Ab dup 2 for GII.4 Farmington Hills ag

Variable Name:
SSII4FC2
SAS Label:
Ab dup 2 for GII.4 Farmington Hills ag
English Text:
Ab dup 2 for GII.4 Farmington Hills ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 1056 1056
. Missing 46 1102

SSII4FCM - Mean Ab for GII.4 Farmington Hills ag

Variable Name:
SSII4FCM
SAS Label:
Mean Ab for GII.4 Farmington Hills ag
English Text:
Mean Ab for GII.4 Farmington Hills ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 1057 1057
. Missing 45 1102

SSII4FO1 - OD_dup 1 for GII.4 Farmington Hills ag

Variable Name:
SSII4FO1
SAS Label:
OD_dup 1 for GII.4 Farmington Hills ag
English Text:
OD_dup 1 for GII.4 Farmington Hills ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3.5 Range of Values 1095 1095
. Missing 7 1102

SSII4FO2 - OD_dup 2 for GII.4 Farmington Hills ag

Variable Name:
SSII4FO2
SAS Label:
OD_dup 2 for GII.4 Farmington Hills ag
English Text:
OD_dup 2 for GII.4 Farmington Hills ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3.5 Range of Values 1095 1095
. Missing 7 1102

SSII4FOM - Mean OD for GII.4 Farmington Hills ag

Variable Name:
SSII4FOM
SAS Label:
Mean OD for GII.4 Farmington Hills ag
English Text:
Mean OD for GII.4 Farmington Hills ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3.5 Range of Values 1096 1096
. Missing 6 1102

SSII4UC1 - Ab con in dup 1 for GII.4 US95/96 ag

Variable Name:
SSII4UC1
SAS Label:
Ab con in dup 1 for GII.4 US95/96 ag
English Text:
Ab con in dup 1 for GII.4 US95/96 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
409.79 to 100000 Range of Values 1024 1024
. Missing 78 1102

SSII4UC2 - Ab con in dup 2 for GII.4 US95/96 ag

Variable Name:
SSII4UC2
SAS Label:
Ab con in dup 2 for GII.4 US95/96 ag
English Text:
Ab con in dup 2 for GII.4 US95/96 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
779.43 to 100000 Range of Values 1024 1024
. Missing 78 1102

SSII4UCM - Mean Ab conc. for GII.4 US95/96 antigen

Variable Name:
SSII4UCM
SAS Label:
Mean Ab conc. for GII.4 US95/96 antigen
English Text:
Mean Ab conc. for GII.4 US95/96 antigen
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
757.22 to 100000 Range of Values 1024 1024
. Missing 78 1102

SSII4UO1 - OD in dup 1 for GII.4 US95/96 antigen

Variable Name:
SSII4UO1
SAS Label:
OD in dup 1 for GII.4 US95/96 antigen
English Text:
OD in dup 1 for GII.4 US95/96 antigen
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.01 to 3.5 Range of Values 1102 1102
. Missing 0 1102

SSII4UO2 - OD in dup 2 for GII.4 US95/96 antigen

Variable Name:
SSII4UO2
SAS Label:
OD in dup 2 for GII.4 US95/96 antigen
English Text:
OD in dup 2 for GII.4 US95/96 antigen
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.009 to 3.5 Range of Values 1102 1102
. Missing 0 1102

SSII4UOM - Mean OD for GII.4 US95/96 antigen

Variable Name:
SSII4UOM
SAS Label:
Mean OD for GII.4 US95/96 antigen
English Text:
Mean OD for GII.4 US95/96 antigen
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.01 to 3.5 Range of Values 1102 1102
. Missing 0 1102

SSII4NC1 - Ab in dup 1 for GII.4 New Orleans ag

Variable Name:
SSII4NC1
SAS Label:
Ab in dup 1 for GII.4 New Orleans ag
English Text:
Ab in dup 1 for GII.4 New Orleans ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 1059 1059
. Missing 43 1102

SSII4NC2 - Ab in dup 2 for GII.4 New Orleans ag

Variable Name:
SSII4NC2
SAS Label:
Ab in dup 2 for GII.4 New Orleans ag
English Text:
Ab in dup 2 for GII.4 New Orleans ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 1054 1054
. Missing 48 1102

SSII4NCM - Mean Ab conc. for GII.4 New Orleans ag

Variable Name:
SSII4NCM
SAS Label:
Mean Ab conc. for GII.4 New Orleans ag
English Text:
Mean Ab conc. for GII.4 New Orleans ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 1059 1059
. Missing 43 1102

SSII4NO1 - OD in dup. 1 for GII.4 New Orleans ag

Variable Name:
SSII4NO1
SAS Label:
OD in dup. 1 for GII.4 New Orleans ag
English Text:
OD in dup. 1 for GII.4 New Orleans ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3.5 Range of Values 1095 1095
. Missing 7 1102

SSII4NO2 - OD in dup. 2 for GII.4 New Orleans ag

Variable Name:
SSII4NO2
SAS Label:
OD in dup. 2 for GII.4 New Orleans ag
English Text:
OD in dup. 2 for GII.4 New Orleans ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3.5 Range of Values 1093 1093
. Missing 9 1102

SSII4NOM - Mean OD for GII.4 New Orleans ag

Variable Name:
SSII4NOM
SAS Label:
Mean OD for GII.4 New Orleans ag
English Text:
Mean OD for GII.4 New Orleans ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0.011 to 3.5 Range of Values 1095 1095
. Missing 7 1102

SSGIV1C1 - Antibody conc. in dup. 1 for GIV.1 ag

Variable Name:
SSGIV1C1
SAS Label:
Antibody conc. in dup. 1 for GIV.1 ag
English Text:
Antibody conc. in dup. 1 for GIV.1 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 962 962
. Missing 140 1102

SSGIV1C2 - Antibody conc. in dup. 2 for GIV.1 ag

Variable Name:
SSGIV1C2
SAS Label:
Antibody conc. in dup. 2 for GIV.1 ag
English Text:
Antibody conc. in dup. 2 for GIV.1 ag
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 963 963
. Missing 139 1102

SSGIV1CM - Mean antibody conc. for GIV.1 antigen

Variable Name:
SSGIV1CM
SAS Label:
Mean antibody conc. for GIV.1 antigen
English Text:
Mean antibody conc. for GIV.1 antigen
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 100000 Range of Values 963 963
. Missing 139 1102

SSGIV1O1 - OD in duplicate 1 for GIV.1 antigen

Variable Name:
SSGIV1O1
SAS Label:
OD in duplicate 1 for GIV.1 antigen
English Text:
OD in duplicate 1 for GIV.1 antigen
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3.5 Range of Values 962 962
. Missing 140 1102

SSGIV1O2 - OD in duplicate 2 for GIV.1 antigen

Variable Name:
SSGIV1O2
SAS Label:
OD in duplicate 2 for GIV.1 antigen
English Text:
OD in duplicate 2 for GIV.1 antigen
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3.5 Range of Values 964 964
. Missing 138 1102

SSGIV1OM - Mean OD for GIV.1 antigen

Variable Name:
SSGIV1OM
SAS Label:
Mean OD for GIV.1 antigen
English Text:
Mean OD for GIV.1 antigen
Target:
Both males and females 16 YEARS - 49 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 3.5 Range of Values 964 964
. Missing 138 1102