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Table 2 Logistic Regression Model of the Best Predictors of Postpartum Depression1 within the First Four Weeks Post Discharge (N = 8702)

From: A cross-sectional study of early identification of postpartum depression: Implications for primary care providers from The Ontario Mother & Infant Survey

Predictors of Postpartum Depression3

Adjusted Odds Ratio4

95% Confidence Interval

Confidant support score5,5:

  

   20 to 25

1.00

-

   5 to 19

2.28

(1.33,3.93)

Mother's self rating of health6:

  

   Excellent/very good

1.00

-

   Good/fair/poor

2.84

(1.70,4.74)

Affective support score5,6:

  

   15

1.00

-

   3 to 14

2.26

(1.31,3.91)

Total household income before taxes and deductions7 :

  

   $20,000 or more

1.00

-

   Less than $20,000

2.45

(1.37,4.36)

After infant was born, mother wanted to stay in hospital6:

  

   Shorter/just right/not sure

1.00

-

   Longer

1.79

(1.04,3.09)

Help needed to care for an emotional/mental health problem6:

  

   Not needed/able to get care or help if needed

1.00

-

   Care or help needed but unable to get

3.10

(1.14,8.44)

Mother's rating of infant's health6:

  

   Excellent/very good/good

1.00

-

   Fair/poor

3.24

(1.15,9.18)

Learning needs while in hospital 6,8 :

  

   0 to 5

1.00

-

   6 or more

1.77

(1.04,3.02)

  1. Final Logistic Regression Model Statistics: Rho-square = 0.21 (a pseudo R2, values between 0.2 and 0.4 suggest a very good fit) Hosmer and Lemeshow Goodness-of-fit test = 0.91 (values greater than 0.25 indicate good fit) 91.0% correctly classified 1Edinburgh Postnatal Depression Scale 2Five mothers had missing values for one or more of the variables included in the final model 3Exact questions may be obtained from the corresponding author 3Odds ratios for categorical variables represent comparisons with the referent group (OR = 1.00) after adjustment for all other variables in the model 4From The Duke-UNC Functional Social Support Questionnaire. 5Information collected from mother four weeks after discharge from hospital 6Information collected from mother prior to discharge from hospital 7Learning needs included information on hospital routines, breast feeding, bottle feeding, infant care and behaviour, signs of illness in infant, physical changes and care of self, emotional changes for self, sexual changes and intercourse, family changes, community support services and other