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. Author manuscript; available in PMC: 2022 Feb 15.
Published in final edited form as: J Affect Disord. 2020 Nov 17;281:367–375. doi: 10.1016/j.jad.2020.11.105

Table 6.

Mean total PHQ-9 and factor score in the entire sample and across groups

Sample Size Total score1 Mean (SD) Score on dysphoric
mood1
Mean (SD)
Total sample 409 13.8 (3.1) 0.40 (0.17)
 
Women Men 287 122 14.0 (3.1) 13.4 (3.2) 0.41 (0.17) 0.40 (0.16)
BMI 27- <35 35 - <40 ≥ 40 209 111 89 13.9 (3.2) 13.6 (2.8) 13.8 (3.2) 0.41 (0.18) 0.38 (0.15) 0.42 (0.16)
Age 18- <45 45- <65≥ 65 115, 248, 46 14.0 (3.3) 13.6 (3.0) 14.1 (3.3) 0.41 (0.18) 0.40 (0.16) 0.44 (0.16)
a

the PHQ-9 total score is the sum of all 9 items, ranging from 0 to 27

b

the mean score on the identified factor was estimated by taking the mean of the raw values of items with salient loadings on the factor multiplied by the standardized scoring coefficients

1

no significant differences were found in the PHQ-9 total score or the dysphoric mood factor score across sex, BMI categories or age groups (All p’s > 0.05)