Table of Contents

Locator Record

Title: Kidney Conditions - Urology (KIQ_U_G )
Contact Number: 1-866-441-NCHS
Years of Content: 2011 - 2012
First Published: November, 2014
Revised: NA
Access Constraints: None
Use Constraints: None
Geographic Coverage: National
Subject:Personal interview data on kidney disease, kidney stones, urinary incontinence, and nocturia
Record Source: NHANES 2011 - 2012
Survey Methodology: NHANES 2011 - 2012 is a stratified multistage probability sample of the civilian non-institutionalized population of the U.S.
Medium: NHANES Web site; SAS transport files

Component Description

The NHANES 2011-2012 Kidney Conditions – Urology section provides personal interview data on kidney disease, kidney stones, urinary incontinence, and nocturia.

Questions KIQ.005 “How often do you have urinary leakage? Would you say …” and KIQ.010 “How much urine do you lose each time? Would you say…” comprise the Incontinence Severity Index (Sandvik, 2000). This index, based on information about frequency in four levels and amount of leakage in three levels, can be multiplied to obtain an index value (1-12). The four-level severity index is based on the following index values: 1-2, slight; 3-6, moderate; 8-9, severe; 10-12, very severe.

Eligible Sample

Participants aged 20 years and older and eligible for this section.

Interview Setting and Mode of Administration

Questions on kidney disease, dialysis, kidney stones, and passing a kidney stone (KIQ022, KIQ025, KIQ026, KID028) were asked, in the home, by trained interviewers using the Computer-Assisted Personal Interviewing (CAPI) system. As previously done, KID028 is a derived variable based on KIQ028G, which records the participant's report of passing kidney stone(s) and KIQ028Q, which records the number of times that kidney stones were passed.

Questions on urinary incontinence (KIQ005, KIQ010, KIQ042, KIQ430, KIQ044, KIQ450, KIQ046, KIQ470, KIQ050, KIQ052) and nocturia (KIQ480) were asked, in the Mobile Examination Center (MEC), by trained interviewers using the CAPI system.

For details on the administration of the Kidney Conditions – Urology (KIQ_U_G) section, please refer to the NHANES 2011-2012 MEC Interviewer Exam Manual, and the Kidney Conditions Sample Person and CAPI Questionnaires on the NHANES website.

Quality Assurance & Quality Control

The CAPI system is programmed with built-in consistency checks to reduce data entry errors. CAPI also uses online help screens to assist interviewers in defining key terms used in the questionnaire.

For details on the quality control/quality assurance process for this component, please refer to the NHANES 2011-2012 Interviewer Procedure Manuals available at the NCHS/CDC. 

Data Processing and Editing

Frequency counts were verified during the preparation of the file.

Analytic Notes

Missing data
Although KIQ005–KIQ480 were targeted to all participants 20 years and older, data for these questions are missing for nearly 12% of individuals who completed the household interview, but did not complete the MEC CAPI.

Appropriate sample weights
Interview weight:  KIQ022- KID028 ;
Examination weight:  KIQ005-KIQ480.

The interview weight should be used when an analysis uses data only from the household interview. If an analysis uses data from the MEC (MEC interview, examination, or laboratory data) exclusively, or in conjunction with the household interview data, the examination weight should be used.

Please refer to the NHANES Analytic Guidelines and the on-line NHANES Tutorial for further details on the use of sample weights and other analytic issues.

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 20 YEARS - 150 YEARS

 

KIQ022 - Ever told you had weak/failing kidneys

Variable Name:
KIQ022
SAS Label:
Ever told you had weak/failing kidneys
English Text:
{Have you/Has SP} ever been told by a doctor or other health professional that {you/s/he} had weak or failing kidneys? Do not include kidney stones, bladder infections, or incontinence.
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 200 200
2 No 5354 5554 KIQ026
7 Refused 1 5555 KIQ026
9 Don't know 4 5559 KIQ026
. Missing 1 5560

 

KIQ025 - Received dialysis in past 12 months

Variable Name:
KIQ025
SAS Label:
Received dialysis in past 12 months
English Text:
In the past 12 months, {have you/has SP} received dialysis (either hemodialysis or peritoneal dialysis)?
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 27 27
2 No 173 200
7 Refused 0 200
9 Don't know 0 200
. Missing 5360 5560

 

KIQ026 - Ever had kidney stones?

Variable Name:
KIQ026
SAS Label:
Ever had kidney stones?
English Text:
{Have you/Has SP} ever had kidney stones?
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 458 458
2 No 5090 5548 KIQ005
7 Refused 1 5549 KIQ005
9 Don't know 10 5559 KIQ005
. Missing 1 5560

 

KID028 - How many times passed a kidney stone?

Variable Name:
KID028
SAS Label:
How many times passed a kidney stone?
English Text:
How many times {have you/has SP} passed a kidney stone?
English Instructions:
ENTER NUMBER OF TIMES
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 to 50 Range of Values 451 451
777 Refused 0 451
999 Don't know 7 458
. Missing 5102 5560

 

KIQ005 - How often have urinary leakage

Variable Name:
KIQ005
SAS Label:
How often have urinary leakage
English Text:
Many people have leakage of urine. The next few questions ask about urine leakage. How often {do you/does SP} have urinary leakage? Would {you/s/he} say . . .
English Instructions:
CAPI INSTRUCTION: HELP SCREEN: Other terms for urinary leakage are not being able to hold your urine until you can reach a toilet, not being able to control your bladder, loss of urine control.
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 never, 3433 3433 KIQ042
2 less than once a month, 373 3806
3 a few times a month, 397 4203
4 a few times a week, or 194 4397
5 every day and/or night? 279 4676
7 Refused 0 4676 KIQ042
9 Don't know 8 4684 KIQ042
. Missing 876 5560

 

KIQ010 - How much urine lose each time?

Variable Name:
KIQ010
SAS Label:
How much urine lose each time?
English Text:
How much urine {do you/does SP} lose each time? Would {you/s/he} say . . .
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 drops, 815 815
2 small splashes, or 278 1093
3 more? 147 1240
7 Refused 0 1240
9 Don't know 3 1243
. Missing 4317 5560

 

KIQ042 - Leak urine during physical activities

Variable Name:
KIQ042
SAS Label:
Leak urine during physical activities
English Text:
During the past 12 months, {have you/has SP} leaked or lost control of even a small amount of urine with an activity like coughing, lifting or exercise?
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 969 969
2 No 3705 4674 KIQ044
7 Refused 0 4674 KIQ044
9 Don't know 8 4682 KIQ044
. Missing 878 5560

 

KIQ430 - How frequently does this occur?

Variable Name:
KIQ430
SAS Label:
How frequently does this occur?
English Text:
How frequently does this occur? Would {you/s/he} say this occurs . . .
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 less than once a month, 447 447
2 a few times a month, 283 730
3 a few times a week, or 140 870
4 every day and/or night? 96 966
7 Refused 0 966
9 Don't know 3 969
. Missing 4591 5560

 

KIQ044 - Urinated before reaching the toilet

Variable Name:
KIQ044
SAS Label:
Urinated before reaching the toilet
English Text:
During the past 12 months, {have you/has SP} leaked or lost control of even a small amount of urine with an urge or pressure to urinate and {you/he/she} couldn't get to the toilet fast enough?`
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 1019 1019
2 No 3658 4677 KIQ046
7 Refused 0 4677 KIQ046
9 Don't know 5 4682 KIQ046
. Missing 878 5560

 

KIQ450 - How frequently does this occur?

Variable Name:
KIQ450
SAS Label:
How frequently does this occur?
English Text:
How frequently does this occur? Would {you/s/he} say this occurs. . .
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 less than once a month, 443 443
2 a few times a month, 318 761
3 a few times a week, or 141 902
4 every day and/or night? 115 1017
7 Refused 0 1017
9 Don't know 2 1019
. Missing 4541 5560

 

KIQ046 - Leak urine during nonphysical activities

Variable Name:
KIQ046
SAS Label:
Leak urine during nonphysical activities
English Text:
During the past 12 months, {have you/has SP} leaked or lost control of even a small amount of urine without an activity like coughing, lifting, or exercise, or an urge to urinate?
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Yes 351 351
2 No 4321 4672 KIQ048A
7 Refused 0 4672 KIQ048A
9 Don't know 9 4681 KIQ048A
. Missing 879 5560

 

KIQ470 - How frequently does this occur?

Variable Name:
KIQ470
SAS Label:
How frequently does this occur?
English Text:
How frequently does this occur? Would {you/s/he} say this occurs . . .
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 less than once a month, 99 99
2 a few times a month, 103 202
3 a few times a week, or 61 263
4 every day and/or night? 86 349
7 Refused 0 349
9 Don't know 1 350
. Missing 5210 5560

 

KIQ048A - CHECK ITEM

Variable Name:
KIQ048A
English Instructions:
BOX 1. CHECK ITEM: IF 'YES' (CODE '1') IN KIQ042 OR KIQ044 OR KIQ046, CONTINUE WITH KIQ050. OTHERWISE, GO TO KIQ480.
Target:
Both males and females 20 YEARS - 150 YEARS

 

KIQ050 - How much did urine leakage bother you

Variable Name:
KIQ050
SAS Label:
How much did urine leakage bother you
English Text:
During the past 12 months, how much did {your/her/his} leakage of urine bother {you/her/him}? Please select one of the following choices:
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Not at all, 597 597
2 only a little, 503 1100
3 somewhat, 268 1368
4 very much, or 159 1527
5 greatly 90 1617
7 Refused 0 1617
9 Don't know 0 1617
. Missing 3943 5560

 

KIQ052 - How much were daily activities affected

Variable Name:
KIQ052
SAS Label:
How much were daily activities affected
English Text:
During the past 12 months, how much did {your/her/his} leakage of urine affect {your/her/his} day-to-day activities? Please select one of the following choices:
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
1 Not at all, 1175 1175
2 only a little, 254 1429
3 somewhat, 110 1539
4 very much, or 50 1589
5 greatly 27 1616
7 Refused 0 1616
9 Don't know 1 1617
. Missing 3943 5560

 

KIQ480 - How many times urinate in night?

Variable Name:
KIQ480
SAS Label:
How many times urinate in night?
English Text:
During the past 30 days, how many times per night did {you/SP} most typically get up to urinate, from the time {you/s/he} went to bed at night until the time {you/he/she} got up in the morning. Would {you/s/he} say
Target:
Both males and females 20 YEARS - 150 YEARS
Code or Value Value Description Count Cumulative Skip to Item
0 0 1480 1480
1 1 1733 3213
2 2 844 4057
3 3 386 4443
4 4 149 4592
5 5 or more? 83 4675
7 Refused 0 4675
9 Don't know 4 4679
. Missing 881 5560