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. 2020 Nov 11;22(11):e18588. doi: 10.2196/18588

Table 5.

Evaluable responses by questionnaire format (N=159).

Question Paper and pencil: proportion of evaluable responses Web-based survey: proportion of evaluable responses P value

n (%) N n (%) N
Sexual behavior

Any sexual partners 140 (88.1) 159 155 (97.5) 159 .001

Number of sexual partners 67 (73) 92 75 (90) 83 .003

Oral sex with a man 81 (88) 92 65 (71) 92 .004

Oral sex with a man with condom 59 (82) 72 57 (90) 63 .15

Oral sex with a woman 73 (79) 92 77 (93) 83 .01

Oral sex with a woman with condom 8 (28) 29 7 (54) 13 .10

Vaginal sex 75 (82) 92 78 (94) 83 .01

Vaginal sex with condom 22 (54) 41 23 (79) 29 .03

Anal sex with a man 76 (83) 92 79 (95) 83 .009

Anal sex with a man with condom 40 (69) 58 41 (91) 45 .007

Anal sex with a woman 69 (75) 92 79 (95) 83 <.001

Anal sex with a woman with condom 1 (4) 24 3 (43) 7 .007

Any new sexual partners 83 (90) 92 79 (95) 83 .21

Number of partners who know your HIV status 84 (91) 92 75 (90) 83 .83

Number of partners with known HIV status 86 (93) 92 77 (93) 83 .85
Substance use

How often drink alcohol 159 (100.0) 159 158 (99.4) 159 .32

How many drinks containing alcohol 99 (98.0) 101 96 (96.0) 100 .40

How often binge drink alcohol 101 (100.0) 101 99 (99.0) 100 .31

Not getting things done because of alcohol 98 (97.0) 101 99 (99.0) 100 .32

Emotional problems from alcohol 96 (95.0) 101 100 (100.0) 100 .02

Last time used tobacco 156 (98.1) 159 157 (98.7) 159 .65

Last time used marijuana 157 (98.7) 159 158 (99.4) 159 .56

Last time used cocaine 157 (98.7) 159 158 (99.4) 159 .56

Last time used heroin 156 (98.1) 159 159 (100.0) 159 .08

Last time used amphetamines 154 (96.9) 159 159 (100.0) 159 .02

Last time used other nonprescribed substance 152 (95.6) 159 159 (100.0) 159 .007

Not getting things done because of substance use 86 (97) 89 98 (98.0) 100 .56

Emotional problems from substance use 85 (96) 89 98 (98.0) 100 .33
Physical activity

How many days spent doing vigorous activities 153 (96.2) 159 159 (100.0) 159 .01

How much time spent doing vigorous activities 79 (90) 88 85 (98) 87 .03

How many days spent doing moderate activities 149 (93.7) 159 159 (100.0) 159 .001

How much time spent doing moderate activities 91 (82.7) 110 102 (99.0) 103 <.001

How many days spent walking ≥10 min 148 (93.1) 159 159 (100.0) 159 <.001

How much time spent walking 119 (87.5) 136 140 (99.3) 141 <.001

How much time spent sitting 126 (79.2) 159 156 (98.1) 159 <.001