Table 1.
Descriptive statistics for those with chronic disabling fatigue (CDF) at 18, those without CDF and those with missing data
| Data on fatigue (n=4290) |
Missing fatigue data (n=9688) | p Value‡ | ||||
|---|---|---|---|---|---|---|
| CDF (n=103) | Not CDF (n=4187) | p Value*† | Total | |||
| Sex (male) | 27/103 (26%) | 1850/4187 (44.2%) | <0.001 | 1877/4290 (43.8%) | 5343/9688 (55.2%) | <0.001 |
| FAI at 8–10 years (range 0–14) | 1.39 (1.06–1.71) | 0.98 (0.94–1.03) | 0.005 | 0.99 (0.95–1.03) | 1.11 (1.07–1.51) | <0.001 |
| Number of AS levels obtained# | 3.49 (3.09–3.88) | 3.52 (3.46–3.58) | 0.88 | 3.52 (3.46–3.58) | 3.51 (3.41–3.60) | 0.82 |
| Number of A-levels studying# | 2.69 (2.18–3.21) | 2.83 (2.75–2.91) | 0.54 | 2.83 (2.75–2.91) | 2.85 (2.73–2.96) | 0.76 |
| Depression at 18 (yes) | 20/50 (40%) | 421/2158 (19.5%) | <0.001 | 441/2208 (20.0%) | 248/985 (25.2%) | 0.001 |
| Applied to university (yes) | 29/50 (58%) | 1324/2158 (61.4%) | 0.63 | 1353/2208 (61.3%) | 490/990 (49.5%) | <0.001 |
| Currently has a paid job (yes) | 26/46 (57%) | 1309/1955 (67.0%) | 0.14 | 1335/2001 (66.7%) | 563/880 (64.0%) | 0.153 |
| Number of CFS/ME symptoms (≥4) (CDC criteria) | 30/103 (29%) | 218/4187 (5.2%) | <0.001 | 248/4290 (5.8%) | – | – |
*χ2 tests for proportions, t-tests for means.
†CDF versus not CDF. #AS level: Advanced Subsidiary Level taken at 17 years A level: General Certificate of Education Advanced Level taken at 18 years.
‡Fatigue data versus missing fatigue data.
CDC, Centers for Disease Control and Prevention; CFS/ME, chronic fatigue syndrome/myalgic encephalomyelitis; FAI, Family adversity index.