Table 4.
Changes in sexual satisfaction in circumcised and uncircumcised men over 12 and 24 months of follow-up: results from adjusted random-intercept logistic regression models∗
| Outcome and parameters | Estimate (β) | Standard error | Pr > |t| |
|---|---|---|---|
| Satisfaction with sexual intercourse | |||
| 12 mo | 0.3 | 0.1 | 0.022†§ |
| 24 mo | 0.7 | 0.1 | <0.001†§ |
| VMMC | −0.4 | 0.1 | 0.009§ |
| 12 mo × VMMC | 1.0 | 0.2 | <0.001‡§ |
| 24 mo × VMMC | 0.7 | 0.2 | <0.001‡§ |
| Secondary education | 0.5 | 0.1 | <0.001§ |
| Employment | 0.4 | 0.1 | <0.001§ |
| Satisfaction with level of sexual desire | |||
| 12 mo | 0.1 | 0.1 | 0.403 |
| 24 mo | 0.9 | 0.2 | <0.001†§ |
| VMMC | −0.4 | 0.2 | 0.005§ |
| 12 mo × VMMC | 1.3 | 0.2 | <0.001‡§ |
| 24 mo × VMMC | 0.9 | 0.2 | <0.001‡§ |
| Age 30–35 y | 0.7 | 0.2 | 0.002§ |
| Secondary education | 0.4 | 0.1 | <0.001§ |
| Employment | 0.3 | 0.1 | <0.001§ |
| Satisfaction getting erections | |||
| 12 mo | 0.4 | 0.1 | 0.011†§ |
| 24 mo | 0.9 | 0.2 | <0.001†§ |
| VMMC | −0.1 | 0.2 | 0.416 |
| 12 mo × VMMC | 1.1 | 0.2 | <0.001‡§ |
| 24 mo × VMMC | 0.6 | 0.2 | 0.012‡§ |
| Secondary education | 0.2 | 0.1 | 0.039§ |
| Employment | 0.4 | 0.1 | <0.001§ |
| Marital status | −0.2 | 0.1 | 0.034§ |
| Satisfaction maintaining erections | |||
| 12 mo | 0.5 | 0.1 | <0.001†§ |
| 24 mo | 1.3 | 0.2 | <0.001†§ |
| VMMC | −0.0 | 0.1 | 0.754 |
| 12 mo × VMMC | 1.2 | 0.2 | <0.001‡§ |
| 24 mo × VMMC | 0.5 | 0.2 | 0.016‡§ |
| Age 30–35 y | 0.6 | 0.2 | 0.008§ |
| Employment | 0.4 | 0.1 | <0.001§ |
| Marital status | −0.2 | 0.1 | 0.015§ |
| Satisfaction with interval between erections | |||
| 12 mo | 0.5 | 0.1 | 0.001†§ |
| 24 mo | 1.2 | 0.2 | <0.001†§ |
| VMMC | −0.3 | 0.1 | 0.034†§ |
| 12 mo × VMMC | 1.3 | 0.2 | <0.001‡§ |
| 24 mo × VMMC | 0.8 | 0.2 | 0.001‡§ |
| Employment | 0.3 | 0.1 | <0.001§ |
| Satisfaction with ease of ejaculation | |||
| 12 mo | 0.1 | 0.2 | 0.395 |
| 24 mo | 0.9 | 0.2 | <0.001†§ |
| VMMC | −0.3 | 0.2 | 0.054†§ |
| 12 mo × VMMC | 1.5 | 0.2 | <0.001‡§ |
| 24 mo × VMMC | 0.8 | 0.2 | 0.002‡§ |
| Age 25–29 y | 0.5 | 0.2 | 0.018§ |
| Age 30–35 y | 0.7 | 0.3 | 0.007§ |
| Employment | 0.5 | 0.1 | <0.001§ |
| Marital status | −0.3 | 0.1 | 0.002§ |
| Satisfaction with level of pain during intercourse | |||
| 12 mo | 0.5 | 0.1 | <0.001†§ |
| 24 mo | 1.5 | 0.1 | <0.001†§ |
| VMMC | −0.2 | 0.1 | 0.176 |
| 12 mo × VMMC | 0.3 | 0.2 | 0.031‡§ |
| 24 mo × VMMC | 0.4 | 0.2 | 0.012‡§ |
| Age 25–29 y | −0.4 | 0.1 | 0.003§ |
| Secondary education | 0.5 | 0.1 | <0.001§ |
| Marital status | −0.2 | 0.1 | 0.001§ |
VMMC = voluntary medical male circumcision.
Main effects for time (12 and 24 months), group (VMMC), and time-by-group interaction using baseline visit and control group as reference. Time-by-group interaction and other covariates are listed only for a significant P value less than or equal to .05. Age categories based on intervals used for recruitment of participants (18–24, 25–29, and 30–35 years) use the youngest age category as reference. All models were adjusted for age, education, employment, and marital status regardless of statistical significance.
Significant increases over time in the two study groups.
Significantly greater increase over time in the VMMC group.
P values less than or equal to .05.