Table 3 Internal consistency and retest stability of endometriosis effects questionnaire with 20 women with endometriosis
From: Psychometric evaluation of the endometriosis impact questionnaire (EIQ) in an Iranian population
Dimensions of endometriosis effects | Last 12 months | Last 1–5 years | Last 5 years | |||
|---|---|---|---|---|---|---|
Cronbach’s alpha | ICC (95% CI) * | Cronbach’s alpha | ICC (95% CI) * | Cronbach’s alpha | ICC (95% CI) * | |
Physical effects | 0.90 | 0.89 (0.86–0.91) | 0.88 | 0.86 (0.89 − 0.84) | 0.73 | 0.94 (0.93–0.95) |
Psychological effects | 0.81 | 0.93 (0.94 − 0.91) | 0.87 | 0.95 (0.94–0.96) | 0.87 | 0.98 (0.98 − 0.97) |
Social effects | 0.91 | 0.90 (0.92 − 0.88) | 0.93 | 0.94 (0.92–0.95) | 0.93 | 0.97 (0.97 − 0.96) |
Sexual relationships | 0.92 | 0.81 (0.75–0.86) | 0.84 | 0.94 (0.92–0.95) | 0.93 | 0.96 (0.95–0.97) |
Reproductive | 0.99 | 0.78 (0.71–0.84) | 0.95 | 0.77 (0.69–0.84) | 0.93 | 0.86 (0.82–0.90) |
Occupational and financial | 0.72 | 0.93 (0.91–0.95) | 0.74 | 0.94 (0.93–0.96) | 0.70 | 0.96 (0.95–0.97) |
Education | 0.85 | 0.88 (0.78–0.95) | 0.82 | 0.94 (0.97 − 0.89) | 0.84 | 0.96 (0.98 − 0.92) |
Lifestyle | 0.93 | (0.92–0.95)0.94 | 0.94 | (0.96 − 0.94) 0.96 | 0.95 | (0.94–0.96) 0.94 |