Table 2. Test-retest reliability of the components of the pregnancy physical activity questionnaire.
| First trimester PPAQ-T n = 20 | Second trimester PPAQ-T n = 28 | Third trimester PPAQ-Tn = 42 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Reliability | Reliability | Reliability | ||||||||||
| T1 | T2 | ICC | Cronbah’s alpha | T1 | T2 | ICC | Cronbah’s alpha | T1 | T2 | ICC | Cronbah’s alpha | |
| Summary activity scores | ||||||||||||
| Total activity (light and above) | 69.9±28.8 | 75.8±33.5 | 0.88 | 0.93 | 45.3±14.9 | 45.1±12.6 | 0.57 | 0.72 | 40.8±19.5 | 41.7±20.5 | 0.91 | 0.95 |
| Intensity | ||||||||||||
| Sedentary (<1.5 METs) | 10.9±6.5 | 12.3±6.8 | 0.90 | 0.95 | 8.6±5.5 | 9.5±5.2 | 0.95 | 0.97 | 5.4±4.1 | 5.7±4.3 | 0.93 | 0.96 |
| Light (1.5–3.0 METs) | 24.6±14.3 | 24.6±13.6 | 0.96 | 0.98 | 21.9±8.6 | 20.7±9.1 | 0.61 | 0.75 | 18.9±8.4 | 17.5±7.2 | 0.87 | 0.93 |
| Moderate (3.0–6.0 METs) | 27.9±20 | 27.5±23.9 | 0.91 | 0.95 | 9.7±7.5 | 9.3±6.9 | 0.97 | 0.98 | 11.6±7.8 | 12.1±8.2 | 0.89 | 0.94 |
| Vigorous (≥6.0 METs) | 6.2±6.5 | 8.3±7.3 | 0.74 | 0.85 | 5.1±6.5 | 5.2±6.4 | 0.65 | 0.79 | 4.9±6.4 | 4.5±6.7 | 0.93 | 0.96 |
| Type | ||||||||||||
| Household/caregiving | 24.6±15.6 | 22.3±13.6 | 0.92 | 0.96 | 22.5±11.7 | 21.9±13.1 | 0.91 | 0.95 | 20.4±9.1 | 19.3±6.9 | 0.85 | 0.92 |
| Occupational | 24.3±26.4 | 27.4±31.1 | 0.88 | 0.94 | 6.6±12.6 | 5.2±8.9 | 0.92 | 0.96 | 1.1±2.7 | 1.0±2.6 | 0.90 | 0.94 |
| Sports/exercise | 9.5±6.5 | 11.9±6.7 | 0.59 | 0.74 | 7.5±6.7 | 7.3±6.6 | 0.68 | 0.81 | 9.1±11.1 | 8.9±12.2 | 0.97 | 0.98 |
ICC: internal consistency; MET: metabolic equivalent; PPAQ-T: Pregnancy Physical Activity Questionnaire-Turkish; SD: standard deviation; T1: first test; T2: second test (retest). Values for the continuous variables are presented as the mean±SD. Values for the categorical variables are presented as the number/total number of cases (%).