. 2022 May 15;279(9):4485–4490. doi: 10.1007/s00405-022-07419-2

Table 5.

Comparison of the maximum phonation time between the three groups

Item	Group 1 “Pneumonia” “n = 212”	Group 2 “Severe Pneumonia” “n = 152”	Group 3 “Control” “n = 100”	P value
MPT in seconds (mean ± SD) Range	10.72 ± 4.09 (4.55–22.3)	8.88 ± 2.68 (4.74–16.22)	15.97 ± 3.91 (6.00–22.06)	P < 0.000 P < 0.000 P < 0.000 **P < 0.000
MPT in Males MPT in Females	11.72 ± 4.53 9.75 ± 3.36	10.42 ± 2.64 7.37 ± 1.67	17.89 ± 4.23 14.05 ± 2.79	P < 0.000 P < 0.000

Item

Group 1
“Pneumonia”
“n = 212”

Group 2
“Severe Pneumonia”
“n = 152”

Group 3
“Control”
“n = 100”

P value

MPT in seconds (mean ± SD)

Range

10.72 ± 4.09

(4.55–22.3)

8.88 ± 2.68

(4.74–16.22)

15.97 ± 3.91

(6.00–22.06)

P < 0.000

*P < 0.000

**P < 0.000

***P < 0.000

MPT in Males

MPT in Females

11.72 ± 4.53

9.75 ± 3.36

10.42 ± 2.64

7.37 ± 1.67

17.89 ± 4.23

14.05 ± 2.79

P < 0.000

Using ANOVA test & independent T test *P; group 1 to group 3, **p; group 2 to group 3 ***P; group 1 to group2