Table 2.
Demographic characteristics of participants participating in separate measurements: total number of participants participating in that measurement, decline of number of participants participating as compared with the number of participants participating at T1, mean age, distribution of level of education, distribution of personal exposure to damage due to gas extraction, distribution of gender and amount of participants that completed the three health measures in that measurement. Netherlands 2016–2017.
| T1 February 2016 |
T2 June 2016 |
T3 November 2016 |
T4 April 2017 |
T5 November 2017 |
||
| Total N | 3934 | 3153 | 2638 | 2351 | 2150 | |
| Attrition (compared with T1) | – | 19.9% | 32.9% | 40.2% | 45.3% | |
| Age (mean) | 56.54 | 57.74 | 57.72 | 58.90 | 59.98 | |
| Level of education (N) | Low | 968 (24.6%) | 772 (24.5%) | 616 (23.4%) | 589 (25.1%) | 535 (24.9%) |
| Middle | 1252 (31.8%) | 970 (30.8%) | 815 (30.9%) | 713 (30.3%) | 639 (29.7%) | |
| High | 1533 (39.0%) | 1238 (39.3%) | 1068 (40.5%) | 944 (40.2%) | 852 (39.6%) | |
| Gender (N) | Male | 1967 (50.0%) | 1547 (49.1%) | 1306 (49.5%) | 1182 (50.3%) | 1068 (49.7%) |
| Female | 1849 (47.0%) | 1480 (46.9%) | 1231 (46.7%) | 1097 (46.7%) | 990 (46.0%) | |
| Exposure to damage (N) | None | 1477 (37.5%) | 1204 (38.2%) | 1027 (38.9%) | 910 (38.7%) | 846 (39.3%) |
| One time | 913 (23.2%) | 626 (19.9%) | 554 (21.0%) | 505 (21.5%) | 459 (21.3%) | |
| Multiple | 1057 (26.9%) | 1055 (33.5%) | 940 (35.6%) | 775 (33.0%) | 736 (34.2%) | |
| Perceived health (N) | 3821 (97.1%) | – | 2540 (96.3%) | 2206 (93.8%) | 2059 (95.8%) | |
| Stress-related health symptoms (N) | 3767 (95.8%) | – | 2533 (96.0%) | 2206 (93.8%) | 2045 (95.1%) | |
| Mental health (N) | 3711 (94.3%) | 2819 (89.4%) | 2501 (94.8%) | 2179 (92.7%) | 2021 (94.0%) |