Table 3.

For unique centers (n = 297), proportion with testing type reduced by > 90%.

	Any Testing	Adult Diagnostic PSG	Adult Titration PSG	Pediatric PSG	HSAT
All	278/297 (93.6)	265/293 (90.4)	265/293 (90.4)	129/157 (82.2)	158/262 (60.3)
Accredited labs	237/252 (94.0)	225/240 (93.8)	226/241 (93.8)	111/135 (82.2)	131/223 (58.7)
Primary laboratory location
Hospital	147/152 (96.7)	145/150 (96.7)	141/146 (96.6)	67/76 (88.8)	91/131 (69.5)
Medical building	73/83 (88.0)†	68/78 (87.2)†	71/81 (87.7)†	34/48 (70.8)†	33/76 (43.4)†
Other	58/62 (93.5)	50/54 (92.6)	51/55 (92.7)	28/33 (84.8)	34/58 (58.6)
Number of beds
≤ 5 beds	136/148 (91.9)	128/140 (85.9)	127/139 (91.4)	50/66 (89.3)	84/133 (63.2)
> 5 beds	142/149 (95.3)	135/142 (95.1)	136/143 (95.1)	79/91 (86.8)	74/132 (56.3)
Primary laboratory setting
Urban/suburban	230/247 (93.1)	220/237 (92.8)	216/233 (92.7)	111/137 (81.0)	131/217 (60.4)
Rural	48/50 (96.0)	43/45 (95.6)	47/49 (95.9)	18/20 (0.0)	27/48 (56.3)
Region
United States	252/269 (93.7)	240/257 (93.4)	241/258 (93.4)	121/145 (83.4)	143/245 (58.4)
Outside of US	26/28 (92.9)	23/25 (92.0)	22/24 (91.7)	8/12 (66.7)	15/20 (75.0)
NE and western US	102/107 (95.3)	98/103 (95.1)	96/102 (95.0)	46/57 (80.7)	49/100 (49.0)†
SE, MW, SW US	149/161 (92.5)	140/152 (92.1)	143/155 (92.3)	73/87 (84.9)	93/143 (65.0)

Data are presented as n/# respondents performing test type (%). †Effect of lab location on any testing reduction: P = .036; adult diagnostic PSG: P = .023; adult titration reduction: P = .032; pediatric testing reduction: P = .053; HSAT reduction: P = .001; effect of US region on HSAT reduction: P = .017. PSG = polysomnography, HSAT = home sleep apnea testing, NE = northeast, SE = southeast, MW = midwest, SW = southwest; the one respondent from Puerto Rico was not included in the regional US analysis.