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Original Research

A comparison between auto-scored apnea-hypopnea index and oxygen desaturation index in the characterization of positional obstructive sleep apnea

ORCID Icon, , , , &
Pages 69-78 | Published online: 12 Jul 2019

Figures & data

Table 1 Descriptive data for the 184 patient records analyzed for the AHI vs ODI comparisons and the 132 records used for the POSA analysis

Table 2 Distributions of sleep-disordered breathing measures across the 184 patient records (mean ± SD)

Figure 1 Bland Altman plots comparing the AHI vs ODI for (A) overall, (B) supine and (C) non-supine positions (n=184).

Figure 1 Bland Altman plots comparing the AHI vs ODI for (A) overall, (B) supine and (C) non-supine positions (n=184).

Figure 2 Percentage of 184 records with absolute differences between the overall AHI and ODI were ≥5 and ≥10 events/h or absolute difference >50% of the AHI, further stratified by those with mild (n=65), moderate (n=45), or severe OSA (n=31).

Figure 2 Percentage of 184 records with absolute differences between the overall AHI and ODI were ≥5 and ≥10 events/h or absolute difference >50% of the AHI, further stratified by those with mild (n=65), moderate (n=45), or severe OSA (n=31).

Table 3 Agreement between auto-scored AHI vs ODI stratified by sleep position and clinical cut-off (n=184)

Figure 3 Distributions of POSA frequency (n=132) based on AHI vs ODI across all records (overall) and with records stratified by OSA severity based using the ratio of the overall/non-supine (O/NS)≥1.4 and the supine/non-supine (S/NS) ≥2.0.

Figure 3 Distributions of POSA frequency (n=132) based on AHI vs ODI across all records (overall) and with records stratified by OSA severity based using the ratio of the overall/non-supine (O/NS)≥1.4 and the supine/non-supine (S/NS) ≥2.0.