| Study | Type of flexibility | Employer/worker‐orientated | Intervention type | Quality appraisal of evidence (see key below) |
| De Raeve 2007 | Temporal | Unclear but likely to be employer orientated | Overtime | 2, 6, 7, 8, 9 |
| Dunham 1987 | Temporal | Worker | Flexitime | 2, 4, 5, 6, 8 |
| Kandolin 1996 | Temporal | Worker | Self‐scheduling of shifts | 1, 3, 6, 8, 9 |
| Pryce 2006 | Temporal | Worker | Self‐scheduling of shifts | 2, 4, 5, 6, 9 |
| Smith 1998 | Temporal | Worker | Compressed working week with flexibility regarding start/finish times | 6, 7, 8, 9 |
| Viitasalo 2008 | Temporal | Worker | Self‐scheduling of shifts | 4, 5, 6, 7, 8, 9 |
| Calvo 2009 | Contract | Worker | Partial retirement | 1, 2, 5, 6, 7, 8, 9 |
| de Vaus 2007 | Contract | Worker | Partial retirement | 1, 2, 6, 7, 8, 9 |
| Dooley 2000 | Contract | Employer | Involuntary part‐time | 1, 2, 4, 6, 7, 9 |
| Rodriguez 2002 | Contract | Employer | Fixed‐term contract | 1, 2, 5, 6, 7, 8, 9 |
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