“…Most of the studies were rated as medium (n = 13 [3], [16], [18]–[20], [28], [31], [34], [36], [38], [41], [43], [45]) or low quality (n = 12 [22], [26], [27], [29], [30], [32], [33], [35], [37], [39], [40], [42], [44]) on the basis of their reporting of the aid intervention; moreover, their focus tended to be on the activities funded by aid and not the amounts of aid, the mechanisms through which it was donated, or the management of the funding. The majority of studies were rated as high (n = 19 [3], [16], [17], [19], [21], [22], [26]–[28], [30], [31], [34]–[36], [39]–[41], [43], [44]) or medium quality (n = 6 [23], [25], [29], [32], [33], [37], [45]) on the basis of their reporting on study design and methods.…”