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Table 2 Coefficients of direct effect and total effect and the results of bootstrapping method

From: The mediating factors in the relationship between lower urinary tract symptoms and health-related quality of life

 

Coefficient a

Coefficient b

Coefficient c’ (direct effect)

Total effect C

Indirect effect

Bias corrected 95% CI

Effect size

Point estimate

SE

Lower

Upper

Depression

 IIQ-7

0.162* (0.082, 0.235)

0.304* (0.156, 0.456)

0.189* (0.105, 0.273)

0.238* (0.144, 0.326)

0.049

0.018

0.020

0.090

0.207

 SF-12 v2 PCS

0.162* (0.078, 0.237)

− 0.312 (− 0.711, 0.090)

− 0.333* (− 0.568, − 0.093)

− 0.383* (− 0.613, − 0.133)

− 0.051

0.035

− 0.129

0.011

0.132

Anxiety

 IIQ-7

0.138* (0.078, 0.195)

0.289* (0.114, 0.503)

0.198* (0.116, 0.283)

0.238* (0.144, 0.326)

0.040

0.017

0.014

0.079

0.167

 SF-12 v2 PCS

0.138* (0.079, 0.195)

− 0.288 (− 0.932, 0.297)

− 0.344* (− 0.596, − 0.109)

− 0.383* (− 0.613, − 0.133)

− 0.040

0.046

− 0.142

0.038

0.103

Stress

 IIQ-7

0.191* (0.134, 0.255)

0.219* (0.085, 0.386)

0.196* (0.109, 0.285)

0.238* (0.144, 0.326)

0.042

0.017

0.016

0.083

0.176

 SF-12 v2 PCS

0.191* (0.135, 0.255)

− 0.140 (− 0.543, 0.287)

− 0.356* (− 0.609, − 0.107)

− 0.383* (− 0.613, − 0.133)

− 0.027

0.042

− 0.111

0.054

0.070

  1. IIQ-7 Incontinence Impact Questionnaire-7, SE standard error, CI confidence interval
  2. * Significant with P < 0.05