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keller_and_evans_lab:dev_con [2016/10/05 19:54]
maia_frieser /* AddHealth */ 		keller_and_evans_lab:dev_con [2019/10/31 10:48] (current)
lessem ↷ Links adapted because of a move operation
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 ** National Longitudinal Study of Adolescent to Adult Health (AddHealth) Descriptives ** ** National Longitudinal Study of Adolescent to Adult Health (AddHealth) Descriptives **
 ^ Wave^ Sample Size^ % Male^ Mean (SD) Age^ Mean (SD) CPD^ Mean (SD) DPW | ^ Wave^ Sample Size^ % Male^ Mean (SD) Age^ Mean (SD) CPD^ Mean (SD) DPW |
-| 1| 20745| 49%| 16.15 (1.74)| 5.39 (7.92)| .83 (3.02) | +| 1| 20745| 49%| 16.15 (1.74)| 5.39 (7.92)| 1.91 (7.89)** | 
-| 2| 14738| 49%| 16.81 (1.62)| 5.51 (8.01)| .98 (3.46) | +| 2| 14738| 49%| 16.81 (1.62)| 5.51 (8.01)| 2.07 (8.03)** | 
-| 3| 15197| 47%| 22.36 (1.83)| 10.34 (9.95)*| .91 (1.73) | +| 3| 15197| 47%| 22.36 (1.83)| 10.34 (9.95)*| 4.5 (10.61) | 
-| 4| 15701| 47%| 29.1 (1.75)| 9.26 (9.9)| .81 (1.55) |+| 4| 15701| 47%| 29.1 (1.75)| 9.26 (9.9)| 4.02 (9.49) |
  
   *  *only asked of regular smokers, not anyone who has ever tried even a puff of a cigarette   *  *only asked of regular smokers, not anyone who has ever tried even a puff of a cigarette
 +  *  **outliers removed
  
  
Line 105: Line 106:
   *  1-3 days a month -> 24 days/year (.46 days/week * 52 weeks / year)   *  1-3 days a month -> 24 days/year (.46 days/week * 52 weeks / year)
   *  Less than once a month -> NA   *  Less than once a month -> NA
 +
 +**Combining Variables**
  
 The recoded question B1B was then multiplied by B1C, and divided result by 365 to get average cigarettes per day over the last 12 months. The recoded question B1B was then multiplied by B1C, and divided result by 365 to get average cigarettes per day over the last 12 months.
Line 110: Line 113:
 After data cleaning, the distributions of these variables looked like this:  After data cleaning, the distributions of these variables looked like this: 
  
-{{file_cts_cpd.jpeg}} +{{:file_cts_cpd.jpeg}} 
-{{file_ltscpd.jpeg}}+{{:file_ltscpd.jpeg}}
  
 Changes over time to average CPD: Changes over time to average CPD:
  
-{{file_cts_cpd_spaghetti.jpeg}} +{{:file_cts_cpd_spaghetti.jpeg}} 
-{{file_lts_cpd_spaghetti.jpeg}}+{{:file_lts_cpd_spaghetti.jpeg}}
  
 To examine the correlation between computed CPD variables over the waves, measures were log-transformed, controlling for sex. To examine the correlation between computed CPD variables over the waves, measures were log-transformed, controlling for sex.
Line 122: Line 125:
 **CTS Variables** **CTS Variables**
  
-{{file_cpdctssex.jpeg}}+{{:file_cpdctssex.jpeg}}
  
 ** Sex-Controlled CTS Cigs Per Day Variable Correlations (Log-Transformed) ** ** Sex-Controlled CTS Cigs Per Day Variable Correlations (Log-Transformed) **
Line 133: Line 136:
 **LTS Variables** **LTS Variables**
  
-{{file_cpdltssexvar.jpeg}}+{{:file_cpdltssexvar.jpeg}}
  
 ** Sex-Controlled LTS Cigs Per Day Variable Correlations (Log-Transformed) ** ** Sex-Controlled LTS Cigs Per Day Variable Correlations (Log-Transformed) **
Line 166: Line 169:
 The change over time in frequency by age looks like this (added jitter): The change over time in frequency by age looks like this (added jitter):
  
-{{file_ftp_tob_freq.jpeg}}+{{:file_ftp_tob_freq.jpeg}}
  
   *  *0 = Never, 1 = <1/week, 2 = 1-2/week, 3 = 3-4/week, 4 = 5-6/week, 5 = everyday   *  *0 = Never, 1 = <1/week, 2 = 1-2/week, 3 = 3-4/week, 4 = 5-6/week, 5 = everyday
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     *  Asked of everyone who has ever tried cigarette smoking (even just 1 or 2 puffs), regardless of smoking regularity     *  Asked of everyone who has ever tried cigarette smoking (even just 1 or 2 puffs), regardless of smoking regularity
  
-  * Question H1TO6: During the past 30 days, on the days you smoked, how many cigarettes did you smoke each day?+  * Question H1TO7: During the past 30 days, on the days you smoked, how many cigarettes did you smoke each day?
     *  Answers range from 0-95 cigarettes; options for refused, don't know, legitimate skip     *  Answers range from 0-95 cigarettes; options for refused, don't know, legitimate skip
     *  Not asked if to H1TO5 = 0     *  Not asked if to H1TO5 = 0
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     *  Answers range from 1-100 cigarettes; options for refuse, legitimate skip, don't know     *  Answers range from 1-100 cigarettes; options for refuse, legitimate skip, don't know
     *  Not asked if H4TO5 = 0, refused, or don't know     *  Not asked if H4TO5 = 0, refused, or don't know
 +
 +**Combining Variables**
 +The smoking days per month variables were combined with the cigarettes per day variables, then divided by 30 to get a measure of average cigarettes per day over the last month:
 +  *     *  CPD1 = (H1TO5*H1TO7)/30
 +    *  CPD2 = (H2TO5*H2TO7)/30
 +    *  CPD3 = (H3TO07*H3TO10)/30
 +    *  CPD4 = (H4TO5*H4TO6)/30
 +
 +The distribution of the CPD variables looked like this:
 +
 +{{:file_add_health_cpd.jpg}}
 +
 +The change in CPD over time (added jitter) looks like this:
 +
 +{{:file_add_health_cpdspaghetti.jpg}}
  
  
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 The distribution of cigarettes per day over test time (Test variable, X axis), which roughly corresponds as 1-7 = 11-17 years, and 18-26 as 18-26 years old (see Descriptives), looked like this (added jitter): The distribution of cigarettes per day over test time (Test variable, X axis), which roughly corresponds as 1-7 = 11-17 years, and 18-26 as 18-26 years old (see Descriptives), looked like this (added jitter):
  
-{{file_mlscpd.jpeg}}+{{:file_mlscpd.jpeg}}
  
  
Line 300: Line 318:
 After data cleaning, the distribution of the computed variable looked like this: After data cleaning, the distribution of the computed variable looked like this:
  
-{{file_cts12_dpw.jpeg}} +{{:file_cts12_dpw.jpeg}} 
-{{file_lts12_dpw.jpeg}}+{{:file_lts12_dpw.jpeg}}
  
 Change over time to DPW: Change over time to DPW:
  
-{{file_cts_dpw12_spaghetti.jpeg}} +{{:file_cts_dpw12_spaghetti.jpeg}} 
-{{file_lts_dpw12_spaghetti.jpeg}}+{{:file_lts_dpw12_spaghetti.jpeg}}
  
 **Measured Variable:** **Measured Variable:**
Line 324: Line 342:
 After data cleaning, the distribution of the measured variable looked like this: After data cleaning, the distribution of the measured variable looked like this:
  
-{{file_cts23_dpw.jpeg}} +{{:file_cts23_dpw.jpeg}} 
-{{file_lts23_dpw.jpeg}}+{{:file_lts23_dpw.jpeg}}
  
 Change over time to DPW: Change over time to DPW:
  
-{{file_cts_dpw23_spaghetti.jpeg}} +{{:file_cts_dpw23_spaghetti.jpeg}} 
-{{file_lts_dpw23_spaghetti.jpeg}}+{{:file_lts_dpw23_spaghetti.jpeg}}
  
 To examine the correlation between computed and measured DPW variables over the waves, measures were left-anchored by adding a constant of 1 to all measures, then log-transformed, controlling for sex. To examine the correlation between computed and measured DPW variables over the waves, measures were left-anchored by adding a constant of 1 to all measures, then log-transformed, controlling for sex.
Line 336: Line 354:
 **CTS Variables** **CTS Variables**
  
-{{file_sexvardpw.jpeg}}+{{:file_sexvardpw.jpeg}}
  
 ** Sex-Controlled CTS Drinks Per Week Variable Correlations (Log-Transformed) ** ** Sex-Controlled CTS Drinks Per Week Variable Correlations (Log-Transformed) **
Line 349: Line 367:
 **LTS Variables** **LTS Variables**
  
-{{file_sexvar_ltsdpw.jpeg}}+{{:file_sexvar_ltsdpw.jpeg}}
  
 ** Sex-Controlled LTS Drinks Per Week Variable Correlations (Log-Transformed) ** ** Sex-Controlled LTS Drinks Per Week Variable Correlations (Log-Transformed) **
Line 377: Line 395:
 The change over time in frequency by age looks like this (added jitter): The change over time in frequency by age looks like this (added jitter):
  
-{{file_ftp_alc_freq.jpeg}}+{{:file_ftp_alc_freq.jpeg}}
  
   *  *0 = Never, 1 = <1/week, 2 = 1-2/week, 3 = 3-4/week, 4 = 5-6/week, 5 = everyday   *  *0 = Never, 1 = <1/week, 2 = 1-2/week, 3 = 3-4/week, 4 = 5-6/week, 5 = everyday
Line 454: Line 472:
     *  Answers range from 1-18; options for refuse, legitimate skip, don't know     *  Answers range from 1-18; options for refuse, legitimate skip, don't know
     *  Not asked if H4TO35 = 0     *  Not asked if H4TO35 = 0
 +
 +**Recoding and Transforming**
 +
 +Questions H1TO15 and H2TO19 were recoded from ordinal to numeric using the following conversions:
 +  *     *  1 -> 365
 +    *  2 -> 208
 +    *  3 -> 78
 +    *  4 -> 30
 +    *  5 -> 7.5 
 +    *  6 -> 1.5 
 +    *  7 -> 0
 +    *  Others -> NA
 +
 +Questions H3TO38 and H4TO35 were recoded from ordinal to numeric using the following conversions:
 +  *     *  0 -> 0
 +    *  6 -> 365
 +    *  5 -> 208
 +    *  4 -> 78
 +    *  3 -> 30
 +    *  2 -> 7.5 
 +    *  1 -> 1.5
 +    *  Others -> NA
 +
 +**Combining variables:**
 +
 +The transformed drinking days per year variables were multiplied by the drinks per day variables, then divided by 52 to get an average drinks per week over the last year:
 +  *     *  DPW1 = (Recoded H1TO15 * H1TO16)/52
 +    *  DPW2 = (Recoded H2TO19 * H2TO20)/52
 +    *  DPW3 = (Recoded H3TO38 * H3TO39)/52
 +    *  DPW4 = (Recoded H4TO35 * H4TO36)/52
 +
 +After data cleaning, the distributions of the DPW variables looked like this:
 +
 +{{:file_add_health_dpw.jpg}}
 +
 +The change over time to average DPW (added jitter) looked like this:
 +
 +{{:file_add_health_dpwspaghetti.jpg}}
  
  
 ====== MLS ====== ====== MLS ======
  
 +Subjects were assessed over time with different measures in two groups; A1-7 and A18-26. Drinking quantity was asked at both time points. with the variable CIG3
 +
 +**Questions**
 +A1-A7:
 +
 +  * Question DAYPERMO: Days per month drinking in last 6 months
 +
 +  * Question DRINKDAY: Drinks per day in last 6 months
 +
 +A18-26:
 +
 +  * Question DOA1: Days per month drinking in last 6 months
 +
 +  * Question DOA2: Drinks per day in last 6 months
 +
 +**Combining Variables**
 +Drinks Per Week variables were created by multiplying days drunk in last 6 months by drinks per day in last 6 months, then dividing by 4:
 +
 +  *     *  DPWA1-A7= (DAYPERMO*DRINKDAY)/4
 +    *  DPWA18-26 = (DOA1*DOA2)/4
 +
 +The distribution of cigarettes per day over test time (Test variable, X axis), which roughly corresponds as 1-7 = 11-17 years, and 18-26 as 18-26 years old (see Descriptives), looked like this (added jitter):
 +
 +{{:file_mlsdpw.jpeg}}
  
  
 ====== MTFS ====== ====== MTFS ======
  
keller_and_evans_lab/dev_con.1475718890.txt.gz · Last modified: 2016/10/05 19:54 by maia_frieser

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