ICC estimates >0.75 were considered as good reliability scores, between 0.50 and 0.75 as moderate reliability, and
<0.50 as poor reliability.31 Second, the Bland and Altman Method was used to assess agreement on scores of PA from the first and second administrations.32 Variables used for the Bland and Altman selleck analysis were weekly time spent in moderate-to-vigorous activity (MVPA), total PA and sitting. MVPA was computed by summing the total min/week of reported PA of moderate and vigorous intensities across all four domains. For total PA, the total min/week of activities in each domain was summed (total work+total transport+total domestic+total leisure-time min/week scores) to gain an overall estimate of PA in a week. Also, the
independent t test and one-way ANOVA were used as appropriate to compare the time spent (min/week) in PA at both administrations across sociodemographic subgroups. To assess construct validity, the non-parametric Spearman correlation coefficients (r) were utilised to explore the relationship between MET-min/week of PA from the Hausa IPAQ-LF, and resting blood pressure and BMI. Data were analysed using Statistical Package for the Social Sciences (SPSS), V.15.0 for Windows (SPSS Inc, Chicago, Illinois, USA) and the level of significance was set at p<0.05. Results The sociodemographic characteristic of the participants are shown in table 1. The participants comprised equally of women and men, with a mean age of 35.6±10.3 years and BMI of 23.8±3.9 kg/m2. The majority of the participants were married (58.9%, n=106), had more than secondary school education (62.7%, n=111) and were employed (75%, n=117). Compared to men, the women were more likely to be married (71.1% vs 46.7%, p=0.001) and unemployed (52.2% vs 17.8%, p<0.001), but men were more likely to have more than secondary school education (76.7% vs 48.2%, p<0.001). Table 1 Descriptive characteristics of the participants (N=180) Reliability Table 2 shows the test–retest reliability of the modified IPAQ-LF. Overall, reliability coefficients were good (ICC
>75) for total PA, occupational PA, active transportation and vigorous intensity (very hard) PA. Domestic PA, sitting activity and Drug_discovery leisure PA demonstrated moderate reliability (ICC ranges from 0.51 to 0.71). While the reliability coefficients of total PA (ICC=0.80, 95% CI 0.69 to 0.87), active transportation (ICC=0.83, 95% CI 0.73 to 0.89), occupational PA (ICC=0.78, 95% CI 0.66 to 0.85) and leisure time PA (ICC=0.75, 95% CI 0.63 to 0.84) were substantially higher among men than women, reliability coefficients for domestic PA (ICC=0.38, 95%, CI 0.01 to 0.57) and sitting time (ICC=0.71, 95% CI 0.46 to 0.85) were higher among women than men. According to the intensity of PA, ICCs range between 0.61 and 0.82, with the lowest value recorded for moderate intensity (hard) PA and the highest value for vigorous intensity (very hard) PA.
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