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Table 6 Association of PHQ-2, GAD-2 and PHQ-4 scores with demographic characteristics (N = 5,140)

From: Reliability and validity of the Patient Health Questionnaire-4 scale and its subscales of depression and anxiety among US adults based on nativity

 

GAD-2, n = 5,140

 

PHQ-2, n = 5,140

 

PHQ-4, n = 5,140

Scale score

Group differences

Scale score

Group differences

Scale score

Group differences

M (SD)

p-value

M (SD)

p-value

M (SD)

p-value

Nativity

 

< 0.001

  

< 0.001

  

< 0.001

 US-born

1.74 (2.01)

  

1.65 (1.92)

  

3.39 (3.73)

 

 Foreign-born

1.45 (1.84)

  

1.43 (1.79)

  

2.89 (3.44)

 

Age

 

< 0.001

  

< 0.001

  

< 0.001

 18–25

2.32 (2.02)a

  

2.36 (1.92)

  

4.68 (3.68)

 

 26–34

2.16 (2.07)ab

  

2.00 (1.97)

  

4.16 (3.83)

 

 35–49

1.66 (1.97)

  

1.60 (1.88)

  

3.25 (3.66)

 

 50–64

1.37 (1.88)

  

1.27 (1.77)

  

2.64 (3.48)

 

 ≥ 65

0.57 (1.14)

  

0.57 (1.23)

  

1.14 (2.21)

 

Gender identity

 

< 0.001

  

< 0.001

  

< 0.001

 Male

1.32 (1.83)

  

1.41 (1.83)

  

2.73 (3.48)

 

 Female

1.84 (2.02)

  

1.69 (1.91)

  

3.53 (3.73)

 

 Non-binary/transgender/other

2.55 (2.15)

  

2.36 (2.03)

  

4.91 (3.96)

 

Sexual orientation

 

< 0.001

  

< 0.001

   

 Heterosexual/straight

1.56 (1.93)

  

1.49 (1.84)

  

3.05 (3.59)

 

 Lesbian/Gay

2.28 (2.03)a

  

2.17 (1.94)a

  

4.45 (3.75)a

 

 Bisexual

2.84 (2.12)b

  

2.75 (2.02)b

  

5.58 (3.86)b

 

 Other

2.69 (2.13)ac, bc

  

2.49 (1.99)ac, bc

  

5.18 (3.91)ac, bc

 

Race/ethnicity

 

< 0.001

  

< 0.001

  

< 0.001

 White

1.65 (2.03)a

  

1.50 (1.90)a

  

3.15 (3.76)a

 

 Black/African American

1.65 (1.90)ab

  

1.69 (1.86)ab

  

3.34 (3.55)ab

 

 Asian

1.35 (1.74)

  

1.41 (1.76)ac

  

2.76 (3.33)ac

 

 Latino/Hispanic

1.89 (2.02)bc

  

1.77 (1.88)bd

  

3.66 (3.69)bd

 

 Other

1.95 (2.11)ad, bd, cd

  

1.94 (2.12)be, de

  

3.89 (4.04)ae, be, de

 

Level of education completed

 

< 0.001

  

< 0.001

  

< 0.001

 Less than High School

2.27 (2.09)

  

2.29 (2.07)

  

4.56 (3.92)

 

 High School diploma or GED

1.89 (2.05)a

  

1.80 (1.93)a

  

3.69 (3.79)a

 

 Some college/vocational

 or technical school

1.82 (2.04)ab

  

1.70 (1.92)ab

  

3.52 (3.76)ab

 

 College or higher degree

1.34 (1.80)

  

1.31 (1.76)

  

2.65 (3.38)

 

Current employment

 

< 0.001

  

< 0.001

  

< 0.001

 Employed

1.60 (1.92)a

  

1.54 (1.84)a

  

3.14 (3.58)a

 

 Unemployed

2.15 (2.11)b

  

2.02 (2.01)b

  

4.17 (3.92)b

 

 Unpaid/Voluntary/Apprenticeship

1.77 (1.91)ac

  

1.57 (1.81)ac

  

3.35 (3.48)ac

 

 Permanently Sick/Disabled

2.37 (2.21)bd

  

2.34 (2.06)bd

  

4.71 (4.06)bd

 

 In school or student

2.43 (2.12)be, de

  

2.31 (1.96)be, de

  

4.74 (3.86)be, de

 

 Retired

0.80 (1.47)

  

0.81 (1.52)

  

1.61 (2.81)

 

Marital status

 

< 0.001

  

< 0.001

   

 Never been married

1.99 (2.05)

  

1.97 (1.97)

  

3.96 (3.80)

 

 Married/Living with a partner

1.50 (1.92)a

  

1.39 (1.80)

  

2.88 (3.53)

 

 Divorced/Widowed/Separated

1.66 (1.95)ab

  

1.65 (1.92)

  

3.32 (3.70)

 

Annual household income

 

< 0.001

  

< 0.001

  

< 0.001

 Less than $25,000

2.00 (2.09)a

  

1.93 (1.97)a

  

3.93 (3.84)a

 

 $25,000 to < $35,000

2.03 (2.06)ab

  

1.91 (1.92)ab

  

3.94 (3.79)ab

 

 $35,000 to < $50,000

1.75 (1.94)c

  

1.71 (1.87)ac, bc

  

3.46 (3.60)bc

 

 $50,000 to < $75,000

1.62 (1.92)cd

  

1.50 (1.86)cd

  

3.11 (3.61)cd

 

 $75,000 or more

1.17 (1.75)

  

1.15 (1.72)

  

2.31 (3.30)

 
  1. abcde Means differences in groups not statistically significant for the comparison of the scale scores between groups using the Bonferroni multiple-comparison test in the ANOVA tests. Thus, groups with letter combinations (e.g., ab, ac, cd) have no statistically significant mean differences. Groups without letter combinations (e.g., ab, ac, cd) have statistically significant mean differences
  2. Differences in two groups were examined with a two-sample t-test, and the differences in at least three groups were evaluated using the ANOVA test