Concept of study

Theoretical concept for study

library(haven)
data_clean <- read_sav("C:/Users/binht/Dropbox/Hue/data/2022_data_consultant/01 DD 1/data_clean.sav")
  1. There are some specific variables using in this analysis
names(data_clean)
##   [1] "ID"                                  
##   [2] "C1.Name"                             
##   [3] "C2.Medical_record_code"              
##   [4] "C3.Gender"                           
##   [5] "C4.1Address"                         
##   [6] "C4.2Phone_number"                    
##   [7] "C5.Age"                              
##   [8] "NHOMTUOI"                            
##   [9] "C6.Education_level"                  
##  [10] "C7.Occupation"                       
##  [11] "C8.Living_with"                      
##  [12] "C9.1Caregiver_myself"                
##  [13] "C9.2Caregiver_spouse"                
##  [14] "C9.3.Caregiver_children"             
##  [15] "C10.1First_year_diagnosis"           
##  [16] "C10.2Number_of_year_disease"         
##  [17] "PHANLOAINAMMACBENH"                  
##  [18] "C11.Comobidity"                      
##  [19] "C11.1What_comobidity"                
##  [20] "C11.TANGHUYETAP"                     
##  [21] "C11SUYTIM"                           
##  [22] "C11VIEMDADAY"                        
##  [23] "C11DTD"                              
##  [24] "C11KHAC"                             
##  [25] "C12.1.metered_dose_inhaler"          
##  [26] "C12.2.Turberhaler"                   
##  [27] "C12.3.Accuhaler"                     
##  [28] "C13.Number_year_use_medicine"        
##  [29] "C14.Received_instruction"            
##  [30] "Phanloainamdungthuoc"                
##  [31] "C15.1.Instructors_health_care_worker"
##  [32] "C15.2.Instructors_radio_television"  
##  [33] "C15.3.Instructors_Internet"          
##  [34] "C15.4.Instructors_reading_guideline" 
##  [35] "C15.5.Instructors_Poster"            
##  [36] "C15.5.Instructors_Another_person"    
##  [37] "C15.5.Instructors_other"             
##  [38] "C16.Smoking_past"                    
##  [39] "C17.Smoking_present"                 
##  [40] "sogoi"                               
##  [41] "phanloai"                            
##  [42] "solannhapvien"                       
##  [43] "phanloaisolannhapvien"               
##  [44] "sodotcap"                            
##  [45] "phanloaidotcap"                      
##  [46] "Mucdotacnghen"                       
##  [47] "II.Knowledge.1"                      
##  [48] "II.2"                                
##  [49] "II.3"                                
##  [50] "II.4"                                
##  [51] "II.5"                                
##  [52] "II.6"                                
##  [53] "II.7"                                
##  [54] "II.8"                                
##  [55] "II.9"                                
##  [56] "II.10"                               
##  [57] "II.11"                               
##  [58] "II.12"                               
##  [59] "II.13"                               
##  [60] "TONG_KIENTHUCCHUNG"                  
##  [61] "III.1"                               
##  [62] "III.2"                               
##  [63] "III.3"                               
##  [64] "III.4"                               
##  [65] "III.5"                               
##  [66] "III.6"                               
##  [67] "III.7"                               
##  [68] "III.8"                               
##  [69] "III.9"                               
##  [70] "III.10"                              
##  [71] "III.11"                              
##  [72] "III.12"                              
##  [73] "III.13"                              
##  [74] "TONG_LYTHUYET"                       
##  [75] "TONGYDINH"                           
##  [76] "TONGATB"                             
##  [77] "TONGSN"                              
##  [78] "TONGPBC"                             
##  [79] "IV.1.1"                              
##  [80] "IV.1.2"                              
##  [81] "IV.1.3"                              
##  [82] "IV.1.4"                              
##  [83] "IV.1.5"                              
##  [84] "IV.1.6"                              
##  [85] "IV.2.1"                              
##  [86] "IV.2.2"                              
##  [87] "IV.2.3"                              
##  [88] "IV.2.4"                              
##  [89] "IV.2.5"                              
##  [90] "IV.2.6"                              
##  [91] "IV.3.1"                              
##  [92] "IV.3.2"                              
##  [93] "IV.3.3"                              
##  [94] "IV.3.4"                              
##  [95] "IV.3.5"                              
##  [96] "IV.3.6"                              
##  [97] "DIEMTHUCHANH"                        
##  [98] "PL_THUCHANH"                         
##  [99] "V.1.MMAS8"                           
## [100] "V.2"                                 
## [101] "V.3"                                 
## [102] "V.4"                                 
## [103] "V.5"                                 
## [104] "V.6"                                 
## [105] "V.7"                                 
## [106] "V.8"                                 
## [107] "TONGMMAS8"                           
## [108] "PL_MMAS8"                            
## [109] "VI.1TAI"                             
## [110] "VI.2"                                
## [111] "VI.3"                                
## [112] "VI.4"                                
## [113] "VI.5"                                
## [114] "VI.6"                                
## [115] "VI.7"                                
## [116] "VI.8"                                
## [117] "VI.9"                                
## [118] "VI.10"                               
## [119] "TONGTAI10ITEMS"                      
## [120] "phantai3new"                         
## [121] "VI.11"                               
## [122] "VI.12"                               
## [123] "TONGTAI15"                           
## [124] "PHANLAOI15"                          
## [125] "TONGTAI610"                          
## [126] "PHANLOAI610"                         
## [127] "TONGTAI1112"                         
## [128] "PHANLOAI1112"                        
## [129] "PL_TAI3GROUP"                        
## [130] "TONGmMRC"                            
## [131] "PHANLOAIMmrc"                        
## [132] "CAT1"                                
## [133] "CAT2"                                
## [134] "CAT3"                                
## [135] "CAT4"                                
## [136] "CAT5"                                
## [137] "CAT6"                                
## [138] "CAT7"                                
## [139] "CAT8"                                
## [140] "TONGCAT"                             
## [141] "PHANCAT"                             
## [142] "MMASgroup2"                          
## [143] "TAI2group"                           
## [144] "TUANTHUKHAM"

1.1. Personal factors:

+ Current smoking: STT 39 C17.Smoking_present

+ Knowledge : STT: 60 TONG_KIENTHUCCHUNG

+ Smoking technique STT: 98 PL_THUCHANH

1.2. Independent variables

Covars 1: Social Supportive: STT 12,13,1,4 C9.1Caregiver_myself; C9.2Caregiver_spouse; C9.3.Caregiver_children

Covars 2: mMRC: 130 TONGCAT ; TONG_LYTHUYET

CAT: STT 140 PHANLOAIMmrc

Group 1: TONGYDINH ; TONGATB ; TONGSN

1.3. Mediators: Intention : TONGYDINH

1.4. Outcome Treatment adherence : Tuân thủ điều trị:143 TAI2group

data <- subset(data_clean, select = c("C9.1Caregiver_myself", "C9.2Caregiver_spouse", "C9.3.Caregiver_children","TONG_LYTHUYET", "C17.Smoking_present", "TONG_KIENTHUCCHUNG", "PL_THUCHANH", "TONGmMRC", "TONGCAT", 'TONGYDINH',"TONGATB" , "TONGSN", "TONGPBC", "TAI2group"))
names(data)
##  [1] "C9.1Caregiver_myself"    "C9.2Caregiver_spouse"   
##  [3] "C9.3.Caregiver_children" "TONG_LYTHUYET"          
##  [5] "C17.Smoking_present"     "TONG_KIENTHUCCHUNG"     
##  [7] "PL_THUCHANH"             "TONGmMRC"               
##  [9] "TONGCAT"                 "TONGYDINH"              
## [11] "TONGATB"                 "TONGSN"                 
## [13] "TONGPBC"                 "TAI2group"
View(data)

Define the variables

data$C17.Smoking_present=as.factor(data$C17.Smoking_present)
data$PL_THUCHANH=as.factor(data$PL_THUCHANH)
data$C9.1Caregiver_myself=as.factor(data$C9.1Caregiver_myself)
data$C9.2Caregiver_spouse=as.factor(data$C9.2Caregiver_spouse)
data$C9.3.Caregiver_children=as.factor(data$C9.3.Caregiver_children)
  1. Descriptive results
 library(compareGroups)
t1=compareGroups(TAI2group~C17.Smoking_present+TONG_KIENTHUCCHUNG+PL_THUCHANH++ C9.1Caregiver_myself+C9.2Caregiver_spouse+C9.3.Caregiver_children+TONGmMRC+TONGYDINH+TONGATB+TONGSN+TONGPBC+TONG_LYTHUYET, data=data)
## Warning in chisq.test(xx, correct = FALSE): Chi-squared approximation may be
## incorrect

Table 1. Distribution for selected variables and associations with outcome

createTable(t1)
## 
## --------Summary descriptives table by '01'---------
## 
## __________________________________________________________ 
##                               0           1      p.overall 
##                             N=265       N=155              
## ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯ 
## C17.Smoking_present:                               0.048   
##     1                    139 (52.5%) 65 (41.9%)            
##     2                    126 (47.5%) 90 (58.1%)            
## TONG_KIENTHUCCHUNG       9.30 (3.43) 10.7 (2.62)  <0.001   
## PL_THUCHANH:                                      <0.001   
##     0                    195 (73.6%) 73 (47.1%)            
##     1                    70 (26.4%)  82 (52.9%)            
## C9.1Caregiver_myself:                              0.245   
##     0                     6 (2.26%)   7 (4.52%)            
##     1                    259 (97.7%) 148 (95.5%)           
## C9.2Caregiver_spouse:                              0.047   
##     0                    70 (26.4%)  56 (36.1%)            
##     1                    195 (73.6%) 99 (63.9%)            
## C9.3.Caregiver_children:                           0.094   
##     0                    242 (91.3%) 133 (85.8%)           
##     1                    22 (8.30%)  22 (14.2%)            
##     3                     1 (0.38%)   0 (0.00%)            
## TONGmMRC                 2.68 (0.58) 2.45 (0.67)  <0.001   
## TONGYDINH                2.26 (0.45) 4.23 (0.51)  <0.001   
## TONGATB                  7.06 (1.54) 14.5 (1.17)  <0.001   
## TONGSN                   11.4 (2.49) 29.3 (2.49)  <0.001   
## TONGPBC                  7.09 (1.52) 14.4 (0.97)  <0.001   
## TONG_LYTHUYET            27.8 (5.73) 62.4 (4.78)  <0.001   
## ¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
  1. Model Model 1 (mediator ~ indepent+covariates)

    Model 2 (Ourcome ~ all)

library(mediation)
## Loading required package: MASS
## Loading required package: Matrix
## Loading required package: mvtnorm
## Loading required package: sandwich
## mediation: Causal Mediation Analysis
## Version: 4.5.0
model.0 <- glm(TAI2group ~ TONGATB+TONGSN+TONGPBC+ C17.Smoking_present+TONG_KIENTHUCCHUNG+PL_THUCHANH + C9.1Caregiver_myself+C9.2Caregiver_spouse+C9.3.Caregiver_children+TONGmMRC, data = data, family=binomial(link='logit'))
model.m <- lm(TONGYDINH ~ TONGATB+TONGSN +TONGPBC+ C17.Smoking_present+TONG_KIENTHUCCHUNG+PL_THUCHANH + C9.1Caregiver_myself+C9.2Caregiver_spouse+C9.3.Caregiver_children+TONGmMRC, data = data)
model.y <- glm(TAI2group ~TONGYDINH+ TONGYDINH+TONGATB+TONGSN+TONGPBC+ C17.Smoking_present+TONG_KIENTHUCCHUNG+PL_THUCHANH+ C9.1Caregiver_myself+C9.2Caregiver_spouse+C9.3.Caregiver_children+TONGmMRC, data = data, family=binomial(link='logit'))
summary(model.0)
## 
## Call:
## glm(formula = TAI2group ~ TONGATB + TONGSN + TONGPBC + C17.Smoking_present + 
##     TONG_KIENTHUCCHUNG + PL_THUCHANH + C9.1Caregiver_myself + 
##     C9.2Caregiver_spouse + C9.3.Caregiver_children + TONGmMRC, 
##     family = binomial(link = "logit"), data = data)
## 
## Deviance Residuals: 
##     Min       1Q   Median       3Q      Max  
## -2.0885  -0.0283  -0.0091   0.0254   3.7510  
## 
## Coefficients:
##                            Estimate Std. Error z value Pr(>|z|)   
## (Intercept)               -23.74643    7.89627  -3.007  0.00264 **
## TONGATB                    -0.97976    0.74983  -1.307  0.19133   
## TONGSN                      0.43418    0.34521   1.258  0.20850   
## TONGPBC                     1.92892    0.81356   2.371  0.01774 * 
## C17.Smoking_present2        0.84597    1.19525   0.708  0.47908   
## TONG_KIENTHUCCHUNG         -0.20766    0.22711  -0.914  0.36054   
## PL_THUCHANH1                1.63093    1.41844   1.150  0.25023   
## C9.1Caregiver_myself1       4.68708    2.83223   1.655  0.09794 . 
## C9.2Caregiver_spouse1       1.02587    1.53641   0.668  0.50432   
## C9.3.Caregiver_children1    2.26460    2.01984   1.121  0.26221   
## C9.3.Caregiver_children3   -7.30635 2399.54635  -0.003  0.99757   
## TONGmMRC                   -0.08416    1.12903  -0.075  0.94058   
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## (Dispersion parameter for binomial family taken to be 1)
## 
##     Null deviance: 553.095  on 419  degrees of freedom
## Residual deviance:  27.687  on 408  degrees of freedom
## AIC: 51.687
## 
## Number of Fisher Scoring iterations: 15
summary(model.m)
## 
## Call:
## lm(formula = TONGYDINH ~ TONGATB + TONGSN + TONGPBC + C17.Smoking_present + 
##     TONG_KIENTHUCCHUNG + PL_THUCHANH + C9.1Caregiver_myself + 
##     C9.2Caregiver_spouse + C9.3.Caregiver_children + TONGmMRC, 
##     data = data)
## 
## Residuals:
##      Min       1Q   Median       3Q      Max 
## -0.54118 -0.18795 -0.02627  0.12716  0.71650 
## 
## Coefficients:
##                           Estimate Std. Error t value Pr(>|t|)    
## (Intercept)               0.349559   0.117370   2.978  0.00307 ** 
## TONGATB                   0.104313   0.023028   4.530 7.76e-06 ***
## TONGSN                    0.046485   0.008851   5.252 2.43e-07 ***
## TONGPBC                   0.062699   0.021679   2.892  0.00403 ** 
## C17.Smoking_present2     -0.012067   0.027389  -0.441  0.65975    
## TONG_KIENTHUCCHUNG       -0.004908   0.004316  -1.137  0.25619    
## PL_THUCHANH1             -0.095735   0.029791  -3.214  0.00142 ** 
## C9.1Caregiver_myself1     0.116156   0.082799   1.403  0.16142    
## C9.2Caregiver_spouse1     0.039867   0.031570   1.263  0.20737    
## C9.3.Caregiver_children1  0.039576   0.047143   0.839  0.40169    
## C9.3.Caregiver_children3 -0.028082   0.278811  -0.101  0.91982    
## TONGmMRC                  0.042383   0.022914   1.850  0.06509 .  
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Residual standard error: 0.2755 on 408 degrees of freedom
## Multiple R-squared:  0.9349, Adjusted R-squared:  0.9332 
## F-statistic:   533 on 11 and 408 DF,  p-value: < 2.2e-16
summary(model.y)
## 
## Call:
## glm(formula = TAI2group ~ TONGYDINH + TONGYDINH + TONGATB + TONGSN + 
##     TONGPBC + C17.Smoking_present + TONG_KIENTHUCCHUNG + PL_THUCHANH + 
##     C9.1Caregiver_myself + C9.2Caregiver_spouse + C9.3.Caregiver_children + 
##     TONGmMRC, family = binomial(link = "logit"), data = data)
## 
## Deviance Residuals: 
##     Min       1Q   Median       3Q      Max  
## -2.2686  -0.0372  -0.0115   0.0195   3.4943  
## 
## Coefficients:
##                           Estimate Std. Error z value Pr(>|z|)   
## (Intercept)               -21.6128     7.8774  -2.744  0.00608 **
## TONGYDINH                  -2.7313     2.8557  -0.956  0.33885   
## TONGATB                    -0.6215     0.7703  -0.807  0.41981   
## TONGSN                      0.6207     0.4120   1.507  0.13193   
## TONGPBC                     1.8645     0.8056   2.314  0.02064 * 
## C17.Smoking_present2        0.8714     1.2363   0.705  0.48089   
## TONG_KIENTHUCCHUNG         -0.2369     0.2322  -1.020  0.30770   
## PL_THUCHANH1                1.5017     1.4590   1.029  0.30336   
## C9.1Caregiver_myself1       5.3430     3.0713   1.740  0.08191 . 
## C9.2Caregiver_spouse1       0.9715     1.6110   0.603  0.54647   
## C9.3.Caregiver_children1    2.1004     1.9575   1.073  0.28327   
## C9.3.Caregiver_children3   -8.1083  2399.5463  -0.003  0.99730   
## TONGmMRC                   -0.1049     1.2026  -0.087  0.93048   
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## (Dispersion parameter for binomial family taken to be 1)
## 
##     Null deviance: 553.095  on 419  degrees of freedom
## Residual deviance:  26.734  on 407  degrees of freedom
## AIC: 52.734
## 
## Number of Fisher Scoring iterations: 15

Identify mediator via the median analysis

model0 <- glm(TAI2group ~ TONGYDINH+TONGATB+TONGSN+TONGPBC+PL_THUCHANH, data = data, family=binomial(link='logit'))
model1 <- lm(TONGYDINH ~ TONGATB+TONGSN +TONGPBC+PL_THUCHANH, data = data)
model2<- lm(TAI2group ~TONGYDINH+TONGATB+TONGSN+TONGPBC+PL_THUCHANH, data = data)
out.1 <- mediate(model1, model2, sims = 1000, treat = "TONGPBC",
                 mediator = "TONGYDINH")
out.2 <- mediate(model1, model2, sims = 1000, boot = TRUE, treat = "TONGPBC",
                 mediator = "TONGYDINH")
## Running nonparametric bootstrap
summary(out.2)
## 
## Causal Mediation Analysis 
## 
## Nonparametric Bootstrap Confidence Intervals with the Percentile Method
## 
##                Estimate 95% CI Lower 95% CI Upper p-value    
## ACME           -0.00764     -0.01298         0.00  <2e-16 ***
## ADE             0.01603     -0.01898         0.06    0.61    
## Total Effect    0.00839     -0.02762         0.06    0.82    
## Prop. Mediated -0.91088     -4.94973         5.60    0.82    
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## Sample Size Used: 420 
## 
## 
## Simulations: 1000
### ACME = ...., 95% CI [0.,,,, 0....]  # significant!
### ACME stands for Average Causal Mediation Effects
### ADE stands for Average Direct Effects
### Total Effect is a sum of a mediation (indirect) effect and a direct effect

model_4<- glm(TAI2group ~TONGYDINH+TONGATB+TONGSN +TONGPBC+TONGYDINH*TONGPBC+PL_THUCHANH, data = data, family=binomial)
summary(model_4)
## 
## Call:
## glm(formula = TAI2group ~ TONGYDINH + TONGATB + TONGSN + TONGPBC + 
##     TONGYDINH * TONGPBC + PL_THUCHANH, family = binomial, data = data)
## 
## Deviance Residuals: 
##      Min        1Q    Median        3Q       Max  
## -2.84098  -0.03350  -0.03350   0.01664   1.71150  
## 
## Coefficients:
##                   Estimate Std. Error z value Pr(>|z|)   
## (Intercept)       15.54897    6.54109   2.377   0.0174 * 
## TONGYDINH         -6.40347    3.64292  -1.758   0.0788 . 
## TONGATB           -2.65576    1.91218  -1.389   0.1649   
## TONGSN            -0.08592    0.51407  -0.167   0.8673   
## TONGPBC           -1.82865    1.11450  -1.641   0.1008   
## PL_THUCHANH1       0.08059    1.68575   0.048   0.9619   
## TONGYDINH:TONGPBC  1.46153    0.53080   2.753   0.0059 **
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
## 
## (Dispersion parameter for binomial family taken to be 1)
## 
##     Null deviance: 553.095  on 419  degrees of freedom
## Residual deviance:  18.073  on 413  degrees of freedom
## AIC: 32.073
## 
## Number of Fisher Scoring iterations: 10
 library(epiDisplay)
## Loading required package: foreign
## Loading required package: survival
## Loading required package: nnet
logistic.display(model_4)
## Warning: glm.fit: fitted probabilities numerically 0 or 1 occurred
## 
## Logistic regression predicting TAI2group 
##  
##                        crude OR(95%CI)          adj. OR(95%CI)    
## TONGYDINH (cont. var.) 814.06 (161.34,4107.51)  0 (0,2.09)        
##                                                                   
## TONGATB (cont. var.)   4.25 (3,6.04)            0.07 (0,2.98)     
##                                                                   
## TONGSN (cont. var.)    1.81 (1.56,2.11)         0.92 (0.34,2.51)  
##                                                                   
## TONGPBC (cont. var.)   5.21 (3.34,8.13)         0.16 (0.02,1.43)  
##                                                                   
## PL_THUCHANH: 1 vs 0    3.13 (2.06,4.75)         1.08 (0.04,29.51) 
##                                                                   
## TONGYDINH:TONGPBC      -                        4.31 (1.52,12.21) 
##                                                                   
##                        P(Wald's test) P(LR-test)
## TONGYDINH (cont. var.) 0.079          0.054     
##                                                 
## TONGATB (cont. var.)   0.165          0.052     
##                                                 
## TONGSN (cont. var.)    0.867          0.866     
##                                                 
## TONGPBC (cont. var.)   0.101          0.054     
##                                                 
## PL_THUCHANH: 1 vs 0    0.962          0.962     
##                                                 
## TONGYDINH:TONGPBC      0.006          < 0.001   
##                                                 
## Log-likelihood = -9.0367
## No. of observations = 420
## AIC value = 32.0734
sens.cont <- medsens(out.2, rho.by = 0.05)
summary(sens.cont)
## 
## Mediation Sensitivity Analysis for Average Causal Mediation Effect
## 
## Sensitivity Region
## 
##        Rho    ACME 95% CI Lower 95% CI Upper R^2_M*R^2_Y* R^2_M~R^2_Y~
## [1,] -0.35  0.0027      -0.0005       0.0059       0.1225        5e-04
## [2,] -0.30  0.0010      -0.0017       0.0038       0.0900        4e-04
## [3,] -0.25 -0.0005      -0.0032       0.0022       0.0625        3e-04
## [4,] -0.20 -0.0020      -0.0050       0.0010       0.0400        2e-04
## [5,] -0.15 -0.0034      -0.0070       0.0001       0.0225        1e-04
## 
## Rho at which ACME = 0: -0.25
## R^2_M*R^2_Y* at which ACME = 0: 0.0625
## R^2_M~R^2_Y~ at which ACME = 0: 3e-04
plot(sens.cont, sens.par = "rho")

plot(sens.cont, sens.par = "R2", r.type = 2,
sign.prod = -1)