Table 1. Baseline characteristics.
| N = 3,140 | |||
|---|---|---|---|
| n | (%) | ||
| Sex | |||
| Male | 829 | (26.40) | |
| Female | 2,311 | (73.60) | |
| Age (years) * | |||
| Mean ± SD | 64.03 ± 10.51 | ||
| Median | 64.00 | ||
| Geriatrics * | |||
| ≥65 | 1,609 | (51.26) | |
| <65 | 1,530 | (48.74) | |
| BMI (kg/m 2 ) † | |||
| Mean ± SD | 24.75±3.31 | ||
| Median | 24.52 | ||
| Affected knee OA | |||
| Right | 929 | (29.59) | |
| Left | 911 | (29.01) | |
| Both | 1,300 | (41.40) | |
| Duration of knee OA (months) | |||
| Mean ± SD | 17.57 ± 35.37 | ||
| Median | 2.17 | ||
| No. of injection | |||
| Once | 3,033 | (96.59) | |
| Twice‡ | 107 | (3.41) | |
| Presence of allergy | |||
| Yes | 77 | (2.45) | |
| No | 2,752 | (87.64) | |
| Unknown | 311 | (9.90) | |
| Preexisting medical condition | |||
| Yes | 282 | (8.98) | |
| No | 2,858 | (91.02) | |
| Concurrent medical condition | |||
| Yes | 1,289 | (41.05) | |
| No | 1,851 | (58.95) | |
| Renal impairment | |||
| Yes | 39 | (1.24) | |
| No | 3,101 | (98.76) | |
| Hepatic impairment | |||
| Yes | 49 | (1.56) | |
| No | 3,091 | (98.44) | |
| Other medical condition (preexisting/concurrent) £ | |||
| Yes | 1,375 | (43.79) | |
| No | 1,765 | (56.21) | |
| Preexisting/concomitant medication | |||
| Yes | 2,078 | (66.18) | |
| No | 1,062 | (33.82) | |
| Prior/concomitant therapy | |||
| Yes | 171 | (5.45) | |
| No | 2,969 | (94.55) | |
BMI, body mass index; SD, standard deviation
* Data acquired from 3,139 subjects were used in the analysis.
† Data acquired from 1,178 subjects were used in the analysis.
‡ Of these, one subject received a third injection.
£Medical conditions other than hepatic or renal impairment.