Duration of overuse: Percent of patients categorized into three intervals.
For the purpose of statistical analysis, age was categorized into five intervals (19 29, 30 39, 40 49, 50 59, and ≥60 years) to estimate age-adjusted prevalence rates by direct method 23 using the World Standard Population.
The pain-to-door time was categorized into six time intervals – up to 0 59 h, from 1 00 up to 1 59 h, from 2 00 up to 3 59 h, from 4 00 up to 11 59 h, from 12 00 up to 23:59 h and 24 h and more.
The concentrations of each POP were categorized into four groups, on the basis of percentile intervals <10th, 10th to <50th, 50th to <90th, and ≥90th.
The concentrations of each POP were categorized into four groups on the basis of percentile intervals, and logistic regression was performed to examine diabetes prevalence across the POP categories, adjusting for sex, age, waist circumference, and mean arterial pressure and using the lowest category as the reference group.
At intervals, the development of protocorms was categorized into four stages: (i) embryo swollen, (ii) appearance of protomeristem, (iii) initiation of leaf and (iv) initiation of roots.
The specimens were categorized into four groups.
The cells were categorized into four groups.
The 12 mutants were categorized into four types.
Populations were categorized into four groups: U.S., Europe, Asia, and other.
