Volatile Anaesthetic Depression of the Carotid Body Chemoreflex-Mediated Ventilatory Response to Hypoxia: Directions for Future Research

Table 2

Ranking of studies by quality (the Berkenbosch study was not ranked as it examines hypercapnia).

Study	Rank quality of study
Biscoe and Millar 1968 [56]	7
Biscoe and Millar 1968 [56]	7
Davies et al. 1982 [57]	2
Berkenbosch et al. 1982 [63]	—
Berkenbosch et al. 1982 [63]	—
van Dissel et al. 1985 [62]	3
Morray et al. 1996 [60]	5
Morray et al. 1996 [60]	5
Ide et al. 1999 [58]	1
Ide et al. 1999 [58]	1
Ponte and Sadler 1989 [61]	4
Ponte and Sadler 1989 [61]	4
Ponte and Sadler 1989 [61]	4
Ponte and Sadler 1989 [61]	4
Ponte and Sadler 1989 [61]	4
Ponte and Sadler 1989 [61]	4
Joensen et al. 2000 [59]	6
Joensen et al. 2000 [59]	6