Items

Full Sample (473)

Mean (SD)

Item-total

correlation

Males (56)

Mean (SD)

Females (417)

Mean (SD)

PHQ1 Stomach pain

0.82 (0.71)

0.62

0.50 (0.57)

0.86 (0.72)^**

PHQ2 Back pain

1.43 (0.71)

0.56

0.98 (0.77)

1.49 (0.68)^**

PHQ3 Pain arm, legs

0.81 (0.74)

0.52

0.68 (0.63)

0.83 (0.75)

PHQ4 Menstruation pain

1.15 (0.8)

0.32

1.30 (0.72)^**

PHQ5 Headaches

1.46 (0.69)

0.62

1.14 (0.77)

1.50 (0.67)^**

PHQ6 Chest pain

0.59 (0.73)

0.64

0.48 (0.68)

0.60 (0.74)

PHQ7 Dizziness

0.54 (0.68)

0.52

0.43 (0.65)

0.56 (0.69)

PHQ8 Fainting

0.05 (0.23)

0.41

0.05 (0.29)

0.05 (0.22)

PHQ9 Heart race

0.76 (0.77)

0.69

0.54 (0.71)

0.79 (0.77)^*

PHQ10 Short breath

0.59 (0.71)

0.71

0.55 (0.73)

0.60 (0.71)

PHQ11 Pain sexual intercourse

0.12 (0.41)

0.21

0.02 (0.13)

0.14 (0.43)^*

PHQ12 Constipation

0.88 (0.79)

0.46

0.68 (0.66)

0.90 (0.81)

PHQ13 Nausea, gas

0.74 (0.74)

0.71

0.48 (0.71)

0.77 (0.74)^**

PHQ14 Feeling tired

1.56 (0.63)

0.54

1.39 (0.70)

1.58 (0.62)^*

PHQ15 Trouble sleep

1.42 (0.72)

0.56

1.20 (0.84)

1.45 (0.70)^*