Codes and Frequencies
An 'X' indicates the category is available for that sample
Code | Label |
24
|
22
|
20
|
18
|
17
|
16
|
15
|
14
|
13
|
12
|
11
|
10
|
09
|
08
|
07
|
06
|
05
|
04
|
03
|
02
|
01
|
00
|
99
|
98
|
97
|
Code | Label |
95
|
94
|
92
|
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0 | NIU | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | 0 | NIU | X | X | X |
1 | Days | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | 1 | Days | X | X | X |
2 | Weeks | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | 2 | Weeks | X | X | X |
3 | Months | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | 3 | Months | X | X | X |
4 | Years | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | 4 | Years | X | X | X |
7 | Unknown-refused | X | X | X | · | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | 7 | Unknown-refused | · | · | X |
8 | Unknown-not ascertained | · | · | · | · | X | · | X | · | · | · | · | · | · | · | X | · | X | · | · | · | · | · | · | · | X | 8 | Unknown-not ascertained | X | X | X |
9 | Unknown-don't know | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | X | 9 | Unknown-don't know | X | X | X |
Can't find the category you are looking for? Try the Detailed codes
Description
For sample adults who have smoked at least 100 cigarettes (SMOKEV) and do not currently smoke (SMOKFREQNOW), QUITTP reports a type of time period associated with a numerical response (QUITNO) that corresponds to the length of time since the person quit smoking cigarettes. Users should combine these two variables to determine the length of time since the person quit smoking cigarettes. Please see the universe tab for detailed information about who was asked this question.
Beginning in 2020, QUITTP was collected as part of the NHIS rotating core content on smoking history and cessation. For more information on the smoking history and cessation rotating core or other smoking history and cessation variables, please see SMOKAGEREG.
Comparability
A major survey redesign introduced in 2019 affects comparability of data from 2019-forward with data from before 2019. There are also minor changes in the universe statement between years, as outlined in the Universe tab, which impact the comparability of this variable over time. Users are advised to consider the impact that changes in the universe may have on their analyses when using data from multiple years.
The NHIS questionnaire was substantially redesigned in 2019 to introduce a different data collection structure and new content. For more information on changes in terminology, universes, and data collection methods beginning in 2019, please see the user note.
Universe
- 1992: Half of sample persons age 18+ in quarters 1 and 2, and in 2 weeks of quarter 3 (excluded from CAEP supplement) who have smoked at least 100 cigarettes and either do not currently smoke or smoke some days but have not smoked in the past 30 days.
- 1994-1995: Half of sample persons age 18+ (excluded from AIDS supplement) who have smoked at least 100 cigarettes and don't currently smoke.
- 1997-2018: Sample adults age 18+ who have smoked at least 100 cigarettes and don't currently smoke.
- 2020; 2022; 2024: Sample adults age 18+ who have smoked at least 100 cigarettes (SMOKEV) and don't currently smoke (SMOKFREQNOW).
Availability
- 1992, 1994-1995, 1997-2018, 2020, 2022, 2024
Survey Text
2024 | 2014 | 2007 | 2000 |
2022 | 2013 | 2006 | 1999 |
2020 | 2012 | 2005 | 1998 |
2018 | 2011 | 2004 | 1997 |
2017 | 2010 | 2003 | 1995 |
2016 | 2009 | 2002 | 1994 |
2015 | 2008 | 2001 | 1992 |
Variable: SMKQTTP_A
Interview Module: Adult
Content Type: Rotating Core
Question text:
* Enter time period for time since quit smoking.
2 - Week(s)
3 - Month(s)
4 - Year(s)
7 - Refused
9 - Don't Know
4 if SMKERR1_CALC_A lt 15 [goto ERR1_SMKQTTP_A]
elseif SMKERR2_CALC_A gt GEN.AGE_FINAL[PX_A] [goto ERR2_SMKQTTP_A]
else [goto MENTHOLF_A]
Check Description: Age started smoking plus years since quitting is greater than current age
Check Text: {check }
Age started smoking (^SMKAGE_A years) + years since quitting (^SMKQTN_A) exceeds current age. Please correct.
Check Description: Former smokers who quit before the age of 15
Check Text: {signal }
Respondent quit smoking before age 15? Please verify.
Variable: SMKQTTP_A
Interview Module: Adult
Content Type: Rotating Core
Question text:
* Enter time period for time since quit smoking.
2 - Week(s)
3 - Month(s)
4 - Year(s)
7 - Refused
9 - Don't Know
4 if SMKERR1_CALC_A lt 15 [goto ERR1_SMKQTTP_A]
elseif SMKERR2_CALC_A gt GEN.AGE_FINAL[PX_A] [goto ERR2_SMKQTTP_A]
else [goto MENTHOLF_A]
Check Description: Age started smoking plus years since quitting is greater than current age
Check Text: {check ERR2_SMKQTTP_A}
Age started smoking (^SMKAGE_A years) + years since quitting (^SMKQTN_A) exceeds current age. Please correct.
Check Description: Former smokers who quit before the age of 15
Check Text: {signal ERR1_SMKQTTP_A}
Respondent quit smoking before age 15? Please verify.
Variable: SMKQTTP_A
Interview Module: Adult
Content Type: Rotating Core
Question text:
* Enter time period for time since quit smoking.
2 - Week(s)
3 - Month(s)
4 - Year(s)
else [goto FORVARCIG_A]
4 if SMKERR1_CALC_A lt 15 [goto ERR1_SMKQTTP_A]
elseif SMKERR2_CALC_A gt GEN.AGE_FINAL[PX_A] [goto ERR2_SMKQTTP_A]
elseif SMKAGE_A ne 96 [goto FORNUMCIG_A]
else [goto FORVARCIG_A]
Check Description: Age started smoking plus years since quitting is greater than current age
Check Text: {check ERR2_SMKQTTP_A}
Age started smoking (^SMKAGE_A years) + years since quitting (^SMKQTN_A) exceeds current age. Please correct.
Check Description: Former smokers who quit before the age of 15
Check Text: {signal ERR1_SMKQTTP_A}
Respondent quit smoking before age 15? Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
QuestionText:
2 Week(s)
3 Month(s)
4 Year(s)
7 Refused
9 Don't know
SkipInstructions:
(4) [if SMKQTNO gt (AGE - (15)), goto ERR1_SMKQTTP
if (SMKREG + SMKQTNO gt AGE), goto ERR2_SMKQTTP.
Hard Edit: ERR2_SMKQTTP
* Age started ([Fill1: SMKREG]) + years since quit ([Fill2: SMKQTNO]) exceeds current age ([Fill3: AGE]).
* Please correct.
Soft Edit: ERR1_SMKQTTP
* Respondent quit smoking before age 15?
* Please verify.
(Number)
2[] Weeks
3[] Months
4[] Years
999[] DK (Part B on page 51)
(Number)
2[] Weeks
3[] Months
4[] Years
999[] DK (Part B on page 51)
Weights
- 1992, 1997-2018, 2020, 2022, 2024 : SAMPWEIGHT
- 1994-1995 : SUPP2WT