Table 2 Comparison of sociodemographic, psychological, PPTs, and cognitive variables between young and elderly adults.

From: Effects of aging on experimentally induced pain perception during a distraction task

 

Young subjects (n = 26)

Elderly subjects (n = 33)

χ2

p

n (%)

n (%)

Sex*

5.9

0.01

 Male

6 (23.1%)

18 (54.5%)

  

 Female

20 (76.9%)

15 (45.5%)

  

Marital status**

59.0

0.001

 Single

26 (100%)

0 (0%)

  

 Married

0 (0%)

25 (75.8%)

  

 Divorced

0 (0%)

4 (12.1%)

  

 Widowed

0 (0%)

4 (12.1%)

  

Educational level**

11.4

0.001

 Primary

0 (0%)

1 (3%)

  

 Secondary

25 (96.2%)

19 (57.6%)

  

 Higher education

1 (3.8%)

13 (39.4%)

  

Employment status**

55.7

0.001

 Student

25 (96.2%)

0 (0%)

  

 Working

1 (3.8%)

4 (12.1%)

  

 Unemployed

0 (0%)

28 (84.8%)

  

 Retired

0 (0%)

1 (3%)

  
 

Mean (SD)

Mean (SD)

t

p

Age**

20.0 (1.6)

68.0 (3.8)

− 65.7

0.001

Anxiety (HADS-A, 0–21)*

7.6 (3.4)

5.6 (2.8)

2.5

0.01

Depression (HADS-D, 0–21)

3.6 (2.6)

2.8 (2.2)

1.1

0.23

Pain catastrophizing (PCS, 0–52)

16.5 (8.3)

15.2 (9.6)

0.52

0.60

Pain anxiety (PASS-20, 0–100)**

32.1 (12.3)

23.3 (10.4)

2.9

0.001

Sleep quality (PSQI, 0–21)

7.8 (3.0)

7.0 (3.7)

0.79

0.42

Mental inhibition (Inhibiting_FDT)

17.8 (8.8)

16.4 (5.4)

0.74

0.45

Cognitive flexibility (Shifting_FDT)

26.2 (13.3)

29.7 (8.4)

− 1.2

0.21

Selective attention (D2_TOT)**

466.8 (52.0)

333.5 (70.4)

8.0

0.001

Working memory (D/R/I digits)

25.3 (5.5)

22.9 (5.4)

1.6

0.10

PPTs C5-C6 (kPa)**

172.5 (60.7)

259.0 (71.6)

− 4.6

0.001

PPTs Tibialis anterior (kPa)**

390.9 (136.9)

573.0 (216.6)

− 3.6

0.001

PPTs Hand (kPa)**

246.8 (68.5)

349.2 (106.3)

− 3.9

0.001

  1. n number of subjects, % percentage of subjects, SD standard deviation, *p < 0.01; **p < 0.001.
  2. HADS-A Hospital Anxiety and Depression Scale (Anxiety), HADS-D Hospital Anxiety and Depression Scale (Depression), PCS Pain Catastrophizing Scale, PASS-20 Pain Anxiety Symptoms Scale-20, PSQI The Pittsburgh Sleep Quality Index, FDT Five Digits Test, D2 D2 Test of Attention, D/R/I Digits Working memory subtest of the Wechsler Adult Intelligence Scale battery.