Skip to main content

Table 2 Patient characteristics, before and after propensity score weighting

From: Practice nurse involvement in primary care depression management: an observational cost-effectiveness analysis

 

Before adjustment

After adjustment1

 

Low level model2

High level model2

St. difference (p value)3

Low level model

High level model

St. difference (p value)

Age (years)

52.56

51.14

0.12 (0.49)

50.13

51.00

-0.07 (0.70)

Gender (male)

0.24

0.28

-0.11 (0.53)

0.19

0.25

-0.14 (0.37)

Married or defacto relationship

0.49

0.38

0.22 (0.20)

0.40

0.40

-0.001 (0.996)

Concessional patient

0.80

0.68

0.28 (0.10)

0.66

0.70

-0.10 (0.68)

SEIFA score4

854.24

905.08

-0.70 (0.00)

877.86

887.05

-0.13 (0.60)

Time since first recorded depressive episode (days)

824.91

1226.00

-0.32 (0.06)

1068.46

1135.63

-0.05 (0.78)

In a depressive state at start of study5

0.60

0.52

0.17 (0.31)

0.66

0.56

0.20 (0.26)

Pre-study chronic condition6

0.58

0.52

0.13 (0.43)

0.51

0.51

-0.01 (0.96)

Pre-study psychological condtion7

0.15

0.18

-0.10 (0.57)

0.16

0.17

-0.03 (0.89)

Time attending the practice (days)

816.58

1564.69

-0.65 (0.00)

1118.51

1280.96

-0.14 (0.52)

Percentage of GP visits in the study period to the participating practice

0.94

0.93

0.15 (0.39)

0.94

0.93

0.11 (0.50)

Time in study (days)

799.02

882.05

-0.38 (0.02)

812.96

843.78

-0.14 (0.54)

  1. 1Adjustment is based on propensity score weighted analysis. 2Low level model includes 99 patients, high level model includes 55 patients. 3Standardised difference is the difference between the means for the low and high level practices divided by the standard deviation (p value is for differences). 4SEIFA is the Socio-Economic Index for Areas (lower scores indicate more disadvantage, Australia wide scores are standardised to a mean of 1000). 5Depressive states include depressive episode, chronic depression, hospital admission for depression, or response. 6Pre-study chronic conditions include myocardial infarction, ischemic heart disease, congestive heart failure, stroke, cancer (excluding skin cancer), diabetes, respiratory disease (e.g. asthma, COPD), musculoskeletal conditions (e.g. arthritis) and chronic pain. 7Pre-study psychological conditions include alcohol or drug abuse, gambling addiction, postnatal depression, anxiety disorder, post traumatic stress disorder, obsessive compulsive disorder, eating disorders, and social or other phobia.