Table 2 Level of evidence for studies included in the literature review
From: Timing for deep vein thrombosis chemoprophylaxis in traumatic brain injury: an evidence-based review
Study | Prospective | Comparison group | Level of evidence |
|---|---|---|---|
CP studies | |||
Arnold et al. [28] | No | Yes | 3 |
Cothren et al. [21] | Yes | No | 5 |
Depew et al. [22] | No | Yes | 4 |
Dudley et al. [17] | No | Yes | 4 |
Kim et al. [18] | No | Yes | 4 |
Kleindienst et al. [23] | No | No | 5 |
Koehler et al. [19] | No | Yes | 4 |
Kurtoglu et al. [20] | Yes | Yes | 3 |
Levy et al. [11] | No | Yes | 3 |
Minshall et al. [12] | No | Yes | 3 |
Norwood et al. [24] | Yes | No | 5 |
Norwood et al. [13] | Yes | No | 5 |
Norwood et al. [14] | Yes | No | 5 |
Pahatouridis et al. [25] | Yes | No | 5 |
Phelan et al. [26] | Yes | Yes | 3 |
Saadeh et al. [15] | No | Yes | 4 |
Salottolo et al. [27] | No | Yes | 3 |
Scudday et al. [29] | No | Yes | 3 |
Non-CP studies | |||
Bee et al. [4] | No | Yes | 4 |
Chang et al. [5] | No | Yes | 3 |
Park et al. [6] | No | Yes | 3 |
Phelan [16] | Yes | Yes | 3 |
Velmahos et al. [7] | No | Yes | 3 |