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. 2021 Feb 10;23(2):e18750. doi: 10.2196/18750

Table 6.

Psychometrics of the Patient Portal Sexual Health Instrument Subscales, by group, American Men’s Internet Survey 2018 (N=1375).

Group AMIS-PPSHIa Subscales
Sexual health engagement and awareness Enhancing dyadic communication Managing sexual health care
Mean (SD) Test statisticb P
value
Mean (SD) Test statisticsb P
value
Mean (SD) Test statisticb P
value

F test (df) t test (df)
F test (df) t test (df)
F test (df) t test (df)
7.46 (1.70) N/A N/A N/A 7.57 (1.71) N/A N/A N/A 13.90 (3.22) N/A N/A N/A
US region
2.41 (3,1371) N/A .07
0.75 (3,1371) N/A .52
5.63 (3,1371) N/A <.001

Northeast (eg, New York and Vermont; n=221) 7.36 (1.75)
7.43 (1.68)
13.56 (3.02)

Midwest (eg, Illinois and Ohio; n=314) 7.30 (1.79)
7.55 (1.77)
13.43 (3.40)

South (eg, Florida and Alabama; n=505) 7.48 (1.70)
7.63 (1.67)
14.29 (3.25)

West (eg, California and Oregon; n=335) 7.64 (1.55)
7.60 (1.73)
14.00 (3.06)
Age category 4.64 (3,1371) N/A .003
10.87 (3,1371) N/A <.001
1.47 (3,1371) N/A .22

15-24 (n=318) 7.51 (1.55)


7.86 (1.38)


14.15 (3.20)



25-29 (n=214) 7.70 (1.44)


7.78 (1.52)


13.96 (2.99)



30-39 (n=291) 7.59 (1.65)


7.70 (1.64)


13.99 (3.09)



≥40 (n=552) 7.26 (1.87)


7.26 (1.93)


13.70 (3.38)


STId test in 12 months before study
N/A 2.86 (1373) .004
N/A 1.99 (1373) .05
N/A 0.09 (1373) .93

Yes (n=1,128) 7.52 (1.66)


7.62 (1.69)


13.91 (3.23)



No (n=247) 7.18 (1.83)


7.38 (1.82)


13.89 (3.18)


History of STI diagnosis
1.02 (2,1372) N/A .36
12.25 (2,1372) N/A <.001
6.13 (2,1372) N/A .002

No history of STI diagnosis (n=1087) 7.49 (1.68)


7.66 (1.64)


14.06 (3.13)



Living with HIV (n=118) 7.39 (1.72)


6.85 (2.13)


13.33 (3.64)



Recent gonorrhea, chlamydia, or syphilis and no HIV (n=170) 7.30 (1.78)


7.52 (1.74)


13.31 (3.41)


Anticipated health care stigma
N/A 0.47 (1373) .64
N/A 1.02 (1373) .31
N/A 0.35 (1373) .73
No (n=1037) 7.47 (1.70)


7.60 (1.74)


13.89 (3.26)



Yes (n=338) 7.42 (1.67)


7.49 (1.63)


13.96 (3.11)


Serious mental illness N/A 0.68 (1373) .49
N/A 1.79 (1373) .07
N/A 1.58 (1373) .11

No (K6e<13; n=1113) 7.44 (1.72)


7.53 (1.75)


13.84 (3.23)



Yes (K6≥13; n=262) 7.52 (1.61)


7.74 (1.51)


14.19 (3.17)


aAmerican Men’s Internet Survey-Patient Portal Sexual Health Instrument.

bTest statistic: for analysis of variance (ANOVA) the F-value (degrees of freedom groups, degrees of freedom residuals) test statistic is reported; for t tests, the t value (degrees of freedom) test statistic is reported.

cN/A: not applicable.

dSTI: sexually transmitted infection.

eK6 refers to the Kessler 6-item psychological distress scale.