With the effects
of other covariates and the classification effects subsumed in the intercept of the equations, the vertical distance between the regression lines represents the estimated mean difference at a given covariate value on the abscissa.
Not exact matches
Had the aim
of this analysis been to identify characteristics associated with PPH, clearly these
covariates would have been included (as would many
of the maternities excluded from the analysis as described earlier), so it would not be appropriate to use these results to draw conclusions about the association between PPH and
covariates other than intended place
of birth.
While standardisation was performed for six principal
covariates (gender, gestational age < 37 weeks, smoking in pregnancy, older siblings, maternal education, and maternal age at time
of birth), there were several
other potential
covariates.
Confounding by
other known dietary factors was unlikely because the risk estimates were influenced only slightly by adjustments for
covariates, eg, the amount
of gluten consumed.
The question
of binge drinking patterns and mortality is far from solved, and there may be genetic differences or
other covariates not yet discovered, which play a role and could explain the different empirical findings.»
These associations were significant after adjustment for a number
of important
covariates known to be associated with vascular health, including lifestyle factors, medication use, and
other nutrients.
Third, although we adjusted for a comprehensive set
of covariates in our multivariable models, the associations reported in our study may partially result from
other unobserved confounding variables, from residual confounding, or by
other dietary variables.55 However, use
of the HEI provided a comprehensive assessment
of overall dietary pattern and should have significantly reduced the confounding effect
of other dietary variables.
The
covariates included race / ethnicity (non-Hispanic white, non-Hispanic black, Mexican American, or
other), educational attainment (< 12, 12, or > 12 years
of education), smoking status (never, former, or current), alcohol consumption (0, < 3, or ≥ 3 drinks / wk), physical activity (0, < 5, or ≥ 5 times / wk
of moderate - intensity to vigorous activities), BMI (< 25, 25 to < 30, or ≥ 30), family history
of CVD (yes / no), and antihypertensive medication use (yes / no).
After controlling for caffeinated coffee and
other covariates, compared with women with the lowest consumption
of decaffeinated coffee (≤ 1 cup per week), the risk
of depression was increased for higher consumption, with the exception
of the very highest consumption category (≥ 2 cups per day).
After exclusion
of participants with missing information on dietary data (n = 117; 70 case subjects, 47 subcohort) or
other missing
covariates, i.e., physical activity, educational, and smoking status (n = 790; 357 case subjects, 433 subcohort), and participants who fell in the top or bottom 1 %
of the «energy intake / energy requirement ratio» (n = 619; 339 case subjects, 280 subcohort), our analysis included 26,253 participants (10,901 incident type 2 diabetes case subjects and a subcohort
of 15,352 participants including 736 cases
of incident type 2 diabetes).
We tested a baseline model with no
covariates (i.e., only the five policy attributes and no
other predictors), and then a full model, which included novice teacher and percentage
of high - achieving students, low - achieving students, students with IEPs, and percentage
of ELL students.
Leaving them within the analysis, however, does improve the precision
of estimates for
other covariates, which results in a more precise estimate
of the treatment effect.
We propose a general method
of moments technique to identify measurement error in self - reported and transcript - reported schooling using differences in wages, test scores, and
other covariates to
It should be noted, however, that whether the use
of students» pretest scores and
other covariates can account or control for such inter - and intra-classroom variations is still being debated and remains highly uncertain (Ballou, Sanders, & Wright, 2004; Capitol Hill Briefing, 2011; Koedel & Betts, 2010; Kupermintz, 2003; McCaffrey, Lockwood, Koretz, Louis, & Hamilton, 2004; J. Rothstein, 2009; Tekwe et al., 2004).
The general pattern showing large jurisdictional differences after controlling for the
covariates is consistent across each
of the five developmental domains with children in Queensland and the ACT showing higher vulnerability compared to children living in the
other jurisdictions.
Other strengths
of our analysis include its large nationally representative and diverse sample, as well as the rich availability
of covariates for inclusion in multivariable models.
A
covariate was included in the multivariate analyses if theoretical or empirical evidence supported its role as a risk factor for obesity, if it was a significant predictor
of obesity in univariate regression models, or if including it in the full multivariate model led to a 5 % or greater change in the OR.48 Model 1 includes maternal IPV exposure, race / ethnicity (black, white, Hispanic,
other / unknown), child sex (male, female), maternal age (20 - 25, 26 - 28, 29 - 33, 34 - 50 years), maternal education (less than high school, high school graduation, beyond high school), maternal nativity (US born, yes or no), child age in months, relationship with father (yes or no), maternal smoking during pregnancy (yes or no), maternal depression (as measured by a CIDI - SF cutoff score ≥ 0.5), maternal BMI (normal / underweight, overweight, obese), low birth weight (< 2500 g, ≥ 2500 g), whether the child takes a bottle to bed at age 3 years (yes or no), and average hours
of child television viewing per day at age 3 years (< 2 h / d, ≥ 2 h / d).
Covariates were those identified in previous analyses
of this sample to independently contribute to child BMI status.16 Parent - reported child variables were gender (male or female), number
of siblings in the household (0, 1, 2, or ≥ 3), and language
other than English spoken at home by the child (yes or no).
After adjustment for the
covariates and for each
other, there was no evidence for an association among any
of the 3 maternal parenting dimensions and child BMI status (all P values were ≥.69).
Even after controlling for parental monitoring
of nonmedia - related behaviors and
other covariates, children were at lower risk
of smoking and drinking if their parents prohibited them from watching R - rated movies.
In multivariate analyses, after adjusting for
other covariates, the odds
of poorer school performance increased with increasing weekday television screen time and cable movie channel availability and decreased with parental restriction
of television content restriction.
However, the association remained significant after controlling for these behaviors as well as a history
of psychological problems, use
of psychotropic medications, current depressive symptoms, and
other covariates.
The analyses also included age, race / ethnicity (three binary variables for Black, Hispanic and
other ethnicity, coded with Whites as the reference group), gender, household income and parental education, media - viewing habits — hours watching television on a school day and how often the participant viewed movies together with his / her parents — and receptivity to alcohol marketing (based on whether or not the adolescent owned alcohol - branded merchandise at waves 2 — 4).31 Family predictors included perceived inhome availability of alcohol, subject - reported parental alcohol use (assessed at the 16 M survey and assumed to be invariant) and perceptions of authoritative parenting (α = 0.80).32 Other covariates included school performance, extracurricular participation, number of friends who used alcohol, weekly spending money, sensation seeking (4 - wave Cronbach's α range = 0.57 — 0.62) 33 and rebelliousness (0.71 — 0.76).34 All survey items are listed in tabl
other ethnicity, coded with Whites as the reference group), gender, household income and parental education, media - viewing habits — hours watching television on a school day and how often the participant viewed movies together with his / her parents — and receptivity to alcohol marketing (based on whether or not the adolescent owned alcohol - branded merchandise at waves 2 — 4).31 Family predictors included perceived inhome availability
of alcohol, subject - reported parental alcohol use (assessed at the 16 M survey and assumed to be invariant) and perceptions
of authoritative parenting (α = 0.80).32
Other covariates included school performance, extracurricular participation, number of friends who used alcohol, weekly spending money, sensation seeking (4 - wave Cronbach's α range = 0.57 — 0.62) 33 and rebelliousness (0.71 — 0.76).34 All survey items are listed in tabl
Other covariates included school performance, extracurricular participation, number
of friends who used alcohol, weekly spending money, sensation seeking (4 - wave Cronbach's α range = 0.57 — 0.62) 33 and rebelliousness (0.71 — 0.76).34 All survey items are listed in table S1.
Thus, varying levels
of child or adult responsibility for the drawings did not confound
other effects tested in this study and did not need to be included as a
covariate in further analyses.
Others have also consistently reported that breastfed children score slightly higher than those bottlefed on the Bayley Scales
of Infant Development or later tests
of IQ, such as the McCarthy Scales, after controlling for standard
covariates including socioeconomic status (SES), maternal age and education, maternal smoking and drinking, 16, 17 and in one study maternal psychological state.18 Longitudinal studies indicate that these differences persist to 5 years and into school age.
bMultiple linear regression adjusted for
other covariates (age, number
of children, education, equivalent household income IADL disability, number
of chronic disease, economic activity, and number
of social activities).
aMultinomial logistic regression adjusted for
other covariates (age, education, equivalent household income IADL disability, number
of chronic disease, number
of children, economic activity, and number
of social activities).
aPercentage
of social ties was adjusted for
other covariates (age, education, equivalent household income IADL disability, number
of chronic disease, number
of children, economic activity, and number
of social activities).
Multiple - classification analysis and analysis
of covariance were employed to examine the relationship between widowhood and social ties after adjusting for the
other covariates.
In these analyses, the CU raw score was considered as the independent variable and
covariates were also SES, children's sex and ethnicity, comorbidities
other than ODD and the number
of DSM - IV CD symptoms.
Linear and logistic regression models were used to determine if 6 types
of adverse experiences including physical abuse, sexual abuse by family and / or
other persons, witnessing abuse, and household dysfunction caused by family alcohol and / or drug use were significantly associated with risk
of adolescent violence perpetration after adjustment for demographic
covariates.
Table 2 contains the GLM and logistic regressions assessing the contribution
of the independent variables, CU levels, and the presence / absence
of ODD on the children's psychological measures for the total sample (n = 622), adjusted by the
covariates family SES, children's ethnicity and sex,
other comorbid disorder different from ODD and the number
of DSM - IV CD symptoms.
The current study examines the effects
of PMQ on health net
of NMQ and these
other covariates.
For this modeling, the measures
of CU (ICU - total raw score) and ODD (binary diagnosis present / absent) were considered as the independent variables and the analyses were adjusted by the
covariates family SES, children's sex and ethnicity, presence
of comorbidities
other than ODD and the number
of DSM - IV CD symptoms.